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DIY Stompboxes => Building your own stompbox => Topic started by: Elijah-Baley on May 08, 2018, 05:01:38 AM

Title: How increase the quality of my pedals
Post by: Elijah-Baley on May 08, 2018, 05:01:38 AM
Hi!
I built more than twenty pedals, and some other stuff. I used to order from Tayda and Musikding, and, because this is just a hobby for me, I buy always the cheapest part: jacks, unpainted enclosures, caps, switches... I didn' care about high quality or prestigious parts.
But now I want to learn where worth increase the quality of the parts in my pedals.

- Resistor
I buy 1/4W metal film from tayda.

- Capacitor
Hot topic, I know. Musikding and Tayda have Wima for film caps; and both have different series of Panasonic and Nichicon as electrolytic. Then, ceramic or silver mica.
To buy the expensive caps will help to improve the quality of the sound? What series? What means "low impedance" in electrolytic capacitor?
https://www.taydaelectronics.com/10uf-50v-105c-aluminum-radial-electrolytic-capacitor.html

- Socket IC
I tried just the cheapest one from Tayda. Why the expensive should be better?

- Connectors
I buy DC jacks from Tayda (the cheapest ones, of course), and jacks open frame from Musikding (the cheapest ones). Should I buy Rean/Neutrik or Switchcraft? Why it should be better?

- Footswitch
I buy them from Tayda, the blue standard. There are also those with the gold plated solder lugs, just slightly cents in more, but it's worth?

- Enclosure
I settle with the cheapest natural enclosure of Musikding, sometime I polish them a bit with sandpaper and abrasive paste. I guess the Hammond enclosures have a more fine surface, in case I have to polish them, probably. I can't paint the enclosures by myself, I could buy the coloured enclosure from Musikding, I think those are ok.

- Led bezel
I could buy something better look, that's it.

- Knobs
The same thing about the knobs, but I wonder if Musikding sells the knobs with the same quality of Tayda or if those are better beside than expensive.

Thanks for your advices!
Title: Re: How increase the quality of my pedals
Post by: ElectricDruid on May 08, 2018, 05:41:01 AM
Something like this is always going to be a matter of taste to some degree, but with that caveat in place, here's my view.


Quote
I buy 1/4W metal film from tayda.
Metal film 1% resistors are accurate, low noise, and cheap.

Quote
- Capacitor
Hot topic, I know. Musikding and Tayda have Wima for film caps; and both have different series of Panasonic and Nichicon as electrolytic. Then, ceramic or silver mica.
To buy the expensive caps will help to improve the quality of the sound? What series? What means "low impedance" in electrolytic capacitor?
https://www.taydaelectronics.com/10uf-50v-105c-aluminum-radial-electrolytic-capacitor.html
It's possible to spend a lot of money on caps, but it isn't always worth it. I do use Wima polypropylene caps for places where it might matter like filters, but that's partly down to their close tolerance (for a cap). You can get Wima caps at 5% (or better sometimes) which helps your filter actually have the cutoff and Q it was designed for.
With electrolytics, low impedance/low ESR isn't really an issue for audio, but it can help in some power supply filtering jobs. I need low ESR caps for the internal core voltage on the DigiDelay processor chip, for example - but that's a microprocessor application.

Quote
- Socket IC
I tried just the cheapest one from Tayda. Why the expensive should be better?
Turned pin sockets last longer than the folded-leaf ones if you pull chips in and out a lot. If you just stick them in and leave them, I don't think there's much difference. For long term reliability, solder your chips in directly. The extra connection of a chip's pins in the socket is a place where dirt and corrosion can affect the electrical properties.

Quote
- Connectors
I buy DC jacks from Tayda (the cheapest ones, of course), and jacks open frame from Musikding (the cheapest ones). Should I buy Rean/Neutrik or Switchcraft? Why it should be better?
Now we're getting to the stuff that I think really matters. You can upgrade the electronic bits of your pedals, and you won't really hear any difference. But the mechanical components get stamped on, twisted, and have jacks banged in and out all the time. Cheap parts will fail earlier than better ones. That said, I think there's a "name brand premium" attached to Switchcraft and Neutrik. How much better they are than other good-quality-but-not-as-expensive parts I don't know. Not much, I suspect.

Quote
- Footswitch
I buy them from Tayda, the blue standard. There are also those with the gold plated solder lugs, just slightly cents in more, but it's worth?
The standard Taiwan-made blue 3PDT's aren't bad. Plating the contacts with gold does nothing important. It won't be corrosion on the contacts that causes problems. Likely failures are inside the mechanism from repeated stamping, not anything to do with the pins.
It's not a popular view, but true-bypass is not the most reliable switching method long term. One reason Ibanez and Boss moved to FET-bypass and used keyboard switches to do the switching is because it eliminates a major point of failure.

Quote
- Enclosure
I settle with the cheapest natural enclosure of Musikding, sometime I polish them a bit with sandpaper and abrasive paste. I guess the Hammond enclosures have a more fine surface, in case I have to polish them, probably. I can't paint the enclosures by myself, I could buy the coloured enclosure from Musikding, I think those are ok.
Since when did an enclosure ever stop working? If you can get a finish you're happy with, keep doing it.

Quote
- Led bezel
I could buy something better look, that's it.
Exactly.

Quote
- Knobs
The same thing about the knobs, but I wonder if Musikding sells the knobs with the same quality of Tayda or if those are better beside than expensive.
There are some cheap knobs that feel great, and there are some expensive knobs that feel a bit cheap. And there are expensive knobs that feel expensive! But this is really a matter of taste.

If you want to improve the long-term reliability, I'd upgrade the jacks, switches, and pots, and make sure you're building stuff that's well-designed and doesn't push components into situations that they're not happy about. If you want to upgrade the aesthetics, then concentrate on those elements; box, knobs, LED, paint finishing, etc.
Depends a bit what aspect of "quality" you're after.

HTH,
Tom
Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 08, 2018, 05:42:35 AM
I will share some of my beliefs with you, of course everyone has their own, and their own style of building.  I think it ends up kind of like our "fingerprint" of our work.  I think it is cool when someone can look at a pedal, or an etch, or PCB, and say "Hey, that looks like *insert name here*'s work."

Again, this thread will probably morph around a lot because everybody has different ways of looking at things...

I've been doing this about 4 years now.  And, I've learned things for sure.  I started out trying to keep costs to an absolute minimum... and sometimes that bites you.  I will just list some random stuff for your review.

Jacks-- Yes. get better quality jacks.  I use open style Nuetriks most.  If you buy them in bulk-- you can get the price point down through Mouser.  Not much more expensive than cheap ones.  And cheap ones twist, break, short, and the tangs fatigue.  Definitely something to upgrade.
Also, I use closed box jacks sometimes.  I used the Tayda ones, and they are cheap and the contacts flimsy.  Use Switchcraft instead.  When you get one in your hands and compare them, there is a big difference.

Resistors.  Tayda is great.  The leads are thin, but it really doesn't matter.  At a penny each, great!  I use carbon, and metal film depending on what circuit I am building.

Capacitors.  Cheap Chong electos are great for PS and filtering.  In audio circuits, I have gone to Nichicon or Panasonic.  There is a whole nuther thread going on about this right now elsewhere.  I used CBB metalized film caps (they are very similar to the ECQ series of Panasonic), but way cheaper.  I too like WIMA box caps, although pricey.  I'm sure the Tayda box caps are completely adequate.
If you need specialty caps (silver mica) for example, you just have to order them from some seller that has them.

IC Socket.  I use the machined more expensive one.  But, there are different schools of thought here too.  Many prefer the cheaper one.

If you use battery snaps... don't buy from Tayda.  The wire is super thin and crappy.  Buy better ones with heavier wire.

Footswitches, enclosures, knobs, etc.  I think Tayda is just fine.  I refuse to pay like $1.50 for a knob.  I think that is crazy.  But, what do I know?  Of course I have to get a plug in here for Aron.  I use Small Bear for all the specialty type parts I can't normally find.  Specialty knobs, Pots, ICs, etc..  Small Bear is a great resource!

Led bezels... I just use the metal ones usually.  I used to use the plastic ones, but for a couple pennies, just put a nicer look to your work.

Anyway.. that's some quick thoughts from me.

MC




Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 08, 2018, 05:48:37 AM
I have also moved to PCB mounted, smooth shaft potentiometers whenever possible.

MC
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 08, 2018, 07:49:01 AM
Thank you, guys! ;)
I got everything.

I didn't mention the pots. I buy them fromt Tayda, Alpha with the isolation cap, it is very useful. I thought those are ok. Am I wrong?
Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 08, 2018, 08:13:42 AM
Quote from: Elijah-Baley on May 08, 2018, 07:49:01 AM
Thank you, guys! ;)
I got everything.

I didn't mention the pots. I buy them fromt Tayda, Alpha with the isolation cap, it is very useful. I thought those are ok. Am I wrong?

They are fine.
Title: Re: How increase the quality of my pedals
Post by: ElectricDruid on May 08, 2018, 08:14:53 AM
Quote from: Elijah-Baley on May 08, 2018, 07:49:01 AM
Thank you, guys! ;)
I got everything.

I didn't mention the pots. I buy them fromt Tayda, Alpha with the isolation cap, it is very useful. I thought those are ok. Am I wrong?

+ 1 agree with ItalianGuy. Taiwan Alpha pots are probably the most widely used pots on pedals, so no, you're not wrong. They're a good quality part. The US Alpha ones are probably popular over there, but I dunno. They're supposed to be good too.

T.
Title: Re: How increase the quality of my pedals
Post by: thermionix on May 08, 2018, 08:25:13 AM
US Alpha?  Does such a thing exist?  Even CTS pots are made in Taiwan, though the company is HQ'd in Indiana.

Switchcraft are still US-made.  Some Sprague caps.  Not much else.
Title: Re: How increase the quality of my pedals
Post by: diffeq on May 08, 2018, 08:30:31 AM
Quote from: italianguy63 on May 08, 2018, 05:48:37 AM
I have also moved to PCB mounted, smooth shaft potentiometers whenever possible.

MC

9mm box-type or regular round with angled leads? Can't find them anywhere locally.   :icon_sad:
Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 08, 2018, 08:39:21 AM
Quote from: diffeq on May 08, 2018, 08:30:31 AM
Quote from: italianguy63 on May 08, 2018, 05:48:37 AM
I have also moved to PCB mounted, smooth shaft potentiometers whenever possible.

MC

9mm box-type or regular round with angled leads? Can't find them anywhere locally.   :icon_sad:

I use both.  Tayda for most, Small Bear for values I can't get at Tayda.
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 08, 2018, 11:21:41 AM
I'm curious about a the various switching method.

FET-bypass Boss style
I still didn't find out some clear information about it. But with this method I get necessarily an always on buffer? What kind of switch I'd need

I found other switching methods:

http://tagboardeffects.blogspot.it/2014/06/soft-latch-relay-bypass-daughterboard.html

https://www.musikding.de/Nope-Relay-Bypass-kit

http://diy.thcustom.com/shop/optotronik_kit/

http://diy.thcustom.com/shop/miniature-relay-true-bypass-kit/

These are more expensive, of course, but could be "better"?
Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 08, 2018, 11:28:20 AM
Quote from: Elijah-Baley on May 08, 2018, 11:21:41 AM
I'm curious about a the various switching method.

FET-bypass Boss style
I still didn't find out some clear information about it. But with this method I get necessarily an always on buffer? What kind of switch I'd need

I found other switching methods:

http://tagboardeffects.blogspot.it/2014/06/soft-latch-relay-bypass-daughterboard.html



https://www.musikding.de/Nope-Relay-Bypass-kit

http://diy.thcustom.com/shop/optotronik_kit/

http://diy.thcustom.com/shop/miniature-relay-true-bypass-kit/

These are more expensive, of course, but could be "better"?

This:

http://effectslayouts.blogspot.com/2015/06/millenium-2-bypass.html

I have daughterboards of this configured for a 1590A.  Makes more room.  Works wonderfully.

MC
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 08, 2018, 11:44:57 AM
Yes, the millennium bypass. Thanks.
In the link we can read «I recently purchased some DPDT footswitches. [...] I found that the "click" made by these DPDTs was far quieter than the "kuchunk" made by regular 3PDTs.»
But if I dont find these quieter DPDT footswitches I think the standard true bypass with 3DPT is easier and quick.
I can't see an improvement.
Title: Re: How increase the quality of my pedals
Post by: Ice-9 on May 08, 2018, 12:00:16 PM
Pretty much agree with everyone's input here, my biggest thing on quality would be to use the better hardware (switches, jacks etc) but not silly priced ones, and not to use any sockets for IC's and transistors at all, solder them in.

With reference to Taiwan Alpha pots , and Alpha pots. The two companies have no connection with each other, Taiwan Alpha pots are good and easy to source but Alpha pots do feel a little better quality to me.
Title: Re: How increase the quality of my pedals
Post by: ElectricDruid on May 08, 2018, 12:58:52 PM
Quote from: thermionix on May 08, 2018, 08:25:13 AM
US Alpha?  Does such a thing exist?

This is one I meant:

http://alphapotentiometers.net (http://alphapotentiometers.net)

Often confused with Taiwan Alpha, but Alpha US use a Greek Alpha as their logo, whereas Taiwan Alpha use a lower case "a" in a circle.
Title: Re: How increase the quality of my pedals
Post by: Passaloutre on May 08, 2018, 02:26:33 PM
Quote from: italianguy63 on May 08, 2018, 05:48:37 AM
I have also moved to PCB mounted, smooth shaft potentiometers whenever possible.

MC

Using PCBs and board-mounted pots really helps your builds look and feel more professional than vero and flying leads. I don't think I'll ever go back to vero for anything more than a one-knob job. I never want to wire four pots and jam a vero board into a tiny enclosure again. The PCBs are also quicker to build and involve less troubleshooting than vero. The downside is you're limited to circuits that someone out there thought worth selling PCBs for. But I'm usually able to find something close enough to what I want (there's like dozens of PCB retailers), and I can generally mod it to my own desires.

Of course, my builds now cost $30-50 (professional PCBs and powder-coated enclosures being the bulk of that cost) instead of the $10-20 that they cost with vero board and hand-painted enclosures. It's worth it to me to have a professional-looking pedal that also won't break down at a show.

Mammoth's "Pro" 3PDTs are the nicest feeling stomp switches I've found, and they're pretty cheap compared to the Alphas. Again, the tiny PCBs for the back of the 3PDT makes connecting your LED and input/output wires loads easier, and has increased my satisfaction with my pedals greatly.
Title: Re: How increase the quality of my pedals
Post by: thermionix on May 08, 2018, 05:07:50 PM
Quote from: ElectricDruid on May 08, 2018, 12:58:52 PM
Quote from: thermionix on May 08, 2018, 08:25:13 AM
US Alpha?  Does such a thing exist?

This is one I meant:

http://alphapotentiometers.net (http://alphapotentiometers.net)

Often confused with Taiwan Alpha, but Alpha US use a Greek Alpha as their logo, whereas Taiwan Alpha use a lower case "a" in a circle.

So it's a US parts distributor named Alpha.  The pics I looked at were all computer renderings, but looked very similar to Taiwan Alpha pots.  Maybe not the same, but I highly doubt US-made.
Title: Re: How increase the quality of my pedals
Post by: amptramp on May 08, 2018, 06:52:19 PM
Adding some things that haven't been suggested yet:

So far, no one has mentioned how the board is mounted to the enclosure.  Some people just "float" the board on wiring but I doubt this is a good idea for long-term satisfaction.  If you have wide-skirted knobs, you can actually use standoffs with mounting screws under the skirt without it being visible.  Otherwise, JB weld the standoffs in place or use adhesive board mounts.

Establish a set of derating rules that only permit you to use a percentage of the ratings of a device.  Probably not an issue with 9 VDC items but at higher voltages, do not use parts at their rated voltage.  A 15 volt electrolytic is OK for a 9 VDC circuit (60% derating) but a 10 VDC one (90% derating) would be pushing your luck and shortening the life of the device, especially since a 9 volt battery starts at about 9.6 volts and a wall-wart is subject to voltage surges.

Use the anti-rotation tangs or washers on pots and jacks.  The pot tangs can hide under the knob skirt or an extra internal plate can be made with the holes but watch the thickness - some pots have only a few threaded turns and any extra thickness can mean they do not mount properly.  Keeping these devices from rotating when they should be rigidly mounted is paramount to getting long life.
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 09, 2018, 03:00:54 AM
With veroboard is not easy fit the standoffs. The trick will be cut a larger board, but it could create confusion working on it, and, of course, take up more space.
I tried to use one (or even two) solid core wires between the board and footswitch or a pot if the board had much space to float, so the board has less chance to move.

The washer you meant, amptramp, are these? https://www.musikding.de/Contact-washer
Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 09, 2018, 03:25:43 AM
Quote from: amptramp on May 08, 2018, 06:52:19 PM
Adding some things that haven't been suggested yet:

So far, no one has mentioned how the board is mounted to the enclosure.  Some people just "float" the board on wiring but I doubt this is a good idea for long-term satisfaction.  If you have wide-skirted knobs, you can actually use standoffs with mounting screws under the skirt without it being visible.  Otherwise, JB weld the standoffs in place or use adhesive board mounts.

Establish a set of derating rules that only permit you to use a percentage of the ratings of a device.  Probably not an issue with 9 VDC items but at higher voltages, do not use parts at their rated voltage.  A 15 volt electrolytic is OK for a 9 VDC circuit (60% derating) but a 10 VDC one (90% derating) would be pushing your luck and shortening the life of the device, especially since a 9 volt battery starts at about 9.6 volts and a wall-wart is subject to voltage surges.

Use the anti-rotation tangs or washers on pots and jacks.  The pot tangs can hide under the knob skirt or an extra internal plate can be made with the holes but watch the thickness - some pots have only a few threaded turns and any extra thickness can mean they do not mount properly.  Keeping these devices from rotating when they should be rigidly mounted is paramount to getting long life.

That is why I have gone to PCB mounted pots when possible.  It makes the build cleaner.  It affixes the PCB, and usually standoffs are no longer needed.  And, the process of tinning, installing, heatshrinking, etc. of wire is eliminated.  It makes build time and expense better.  Of course there is a little more back-office work needed to make sure you get the right components.  Troubleshooting is easier I think too.

Recently, I revisited all the products I produce, and went through and did PCB board revisions to "upgrade" to affixed pots.  Again, a bit more work-- but worth it in the long run.

When I need standoffs, I generally just JB Weld one to the enclosure as suggested.

I too use "small footprint" 3PDT daughterboards to affix wires.  After ruining a few $3 switches because I overheated the epoxy, I just quit.  Switched gears and went the daughter-board route.  Again, Small Bear has a nice tiny one.

MC
Title: Re: How increase the quality of my pedals
Post by: amptramp on May 09, 2018, 05:49:57 PM
This is the anti-rotation washer:

(https://www.pegasusautoracing.com/images/L/4428.JPG)

The tang facing in catches a slot machined on the pot or switch and the tang facing out of the plane of the washer catches a hole in the enclosure or a plate used under the enclosure to keep the tang from showing on the unit.
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 10, 2018, 11:31:05 AM
I guess I get how these washers work, if I see some example I will know how it looks. I'm not sure about the good looking of them.

By the way, what about the look of the pedal?
This is another aspect I economized. Natural enclosures, at max polished a bit, I already told it. And a transparent printed sheet, just some little text labels or the entire top face of the box. I couldn't use transparent spray, and if I don't pay care the sheet may ruins.

Could be cool if the enclosure was coloured, I have to spend something more. About the protection of the surface, there's nothing more to do that to use a transparent coat.
Title: Re: How increase the quality of my pedals
Post by: Andrekp on May 10, 2018, 05:44:16 PM
Quote from: Elijah-Baley on May 09, 2018, 03:00:54 AM
With veroboard is not easy fit the standoffs. The trick will be cut a larger board, but it could create confusion working on it, and, of course, take up more space.
I tried to use one (or even two) solid core wires between the board and footswitch or a pot if the board had much space to float, so the board has less chance to move.

The washer you meant, amptramp, are these? https://www.musikding.de/Contact-washer

I use vero/stripboard pretty much exclusively. One thing I've found to be immensely helpful is that, on the component side, using colored marker, I color the ground row(s) green, the power rail(s) red, put marks on the input, output, pot, connection spots, etc. whatever might be helpful n visualizing.  I have the same markings on my layout. It is far easier to think, "ok, this resistor goes from one above the power rail to ground," than,"from row 6 down to row 3."
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 12, 2018, 10:09:43 AM
Thanks, Andrekp. ;)

Quote from: italianguy63 on May 08, 2018, 11:28:20 AM
This:

http://effectslayouts.blogspot.com/2015/06/millenium-2-bypass.html

I have daughterboards of this configured for a 1590A.  Makes more room.  Works wonderfully.

MC

Now, I would come back to the bypass method.
In particular about the millennium bypass. http://www.geofex.com/article_folders/millenium/millen.htm
Some question to who has used or know it well.
1. Is the Millennium Bypass a REAL True Bypass.
2. Has it any problem with pop noise?

I guess the Millennium Bypass is really ok, just I wanna be sure. Coincidentally, I could use it to avoid to replace the original DPDT footswitch with a 3PDT in a old pedal without the indicator led. :P
Title: Re: How increase the quality of my pedals
Post by: duck_arse on May 12, 2018, 10:58:07 AM
I put the mill into most all my builds. it is true/hard bypass, as true as it can get, and as hard as bypass can get. it disconnects the circuit from the outside world completely. if your build is going to pop, the mill won't stop it popping. if the circuit doesn't pop, the mill won't make it pop.
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 12, 2018, 12:06:19 PM
Oh, thank you, duck_arse. ;)
I heard about a guy who solved the pop issue using the millennium bypass.
Title: Re: How increase the quality of my pedals
Post by: thermionix on May 12, 2018, 08:28:27 PM
I haven't looked into it, just seen it mentioned around here, but what is the advantage of the millennium bypass?  Is it just that you can use DP switches?
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 13, 2018, 04:06:28 AM
I know the millennium bypass just like you. It was a trick to use the DPDT, indeed, because the 3PDT was very expensive. But I think the trick save money still work today.

Maybe I realize a thing about the pop: it could be that the millennium bypass can solve the pop issue if it depends from the LED.

I was considering the millennium bypass as a primitive true bypass method, but maybe I wrong.
We could list pros and cons of the millennium bypass and the 3PDT True Bypass. I'm pretty sure we can find out them somewhere else, but it will be easy to read them all here.
Title: Re: How increase the quality of my pedals
Post by: chuckd666 on May 13, 2018, 05:54:38 AM
DPDT switches mean there's one less mechanical thing that can break. Which is good!
Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 13, 2018, 06:07:33 AM
Reduced wiring.  (no ring wiring).  Also allows use of 2 mono jacks.

I do it for space.  Switch and LED are self-contained together.  No LED bezel.  Mostly, I used in 1590A's where real-estate is at a premium.

Also, quiet (solid state), and true-bypass.

Negatives.. I guess high componet count vs. just a switch.  But parts are all dirt cheap.

MC
(https://s7.postimg.cc/ch33zyp4n/MBypass.jpg) (https://postimg.cc/image/ch33zyp4n/)
Title: Re: How increase the quality of my pedals
Post by: thermionix on May 13, 2018, 05:32:02 PM
Well with no battery (99.9% of 1590A builds) you can always use mono jacks.

Is there a true bypass scheme that uses a momentary switch?  That soft touch would be a real benefit IMO, low mechanical wear.
Title: Re: How increase the quality of my pedals
Post by: ElectricDruid on May 13, 2018, 06:51:19 PM
Quote from: thermionix on May 13, 2018, 05:32:02 PM
Is there a true bypass scheme that uses a momentary switch?  That soft touch would be a real benefit IMO, low mechanical wear.

The only way would be with a relay. Here's an example:

https://www.coda-effects.com/2016/08/relay-bypass-with-anti-pop-system.html

Benoit pops up here sometimes, so maybe he can comment. There have been a few threads on this topic here too. Have a look for "relay bypass". You can use latching relays or other logic, but a microprocessor and a standard relay is probably easier/cheaper/smaller.

Title: Re: How increase the quality of my pedals
Post by: italianguy63 on May 14, 2018, 02:50:20 AM
Quote from: thermionix on May 13, 2018, 05:32:02 PM
Well with no battery (99.9% of 1590A builds) you can always use mono jacks.

Hahahahhaha!  DUH!  My bad.

LOL
Title: Re: How increase the quality of my pedals
Post by: Elijah-Baley on May 14, 2018, 04:04:34 AM
Quote from: ElectricDruid on May 13, 2018, 06:51:19 PM
[...]
Benoit pops up here sometimes, so maybe he can comment.
[...]

ElectricDruid, don't mention the word "pop" when you talk about switching. ;D

Anyway, I early linked some relay switching bypass, PCB and layout, here: https://www.diystompboxes.com/smfforum/index.php?topic=120273.msg1125975#msg1125975

Here another pair:
http://effectslayouts.blogspot.it/2016/05/soft-latch-relay-switching.html
http://effectslayouts.blogspot.it/2016/06/555-relay-bypass.html

I think it is and advanced bypass method (more than standard 3PDT bypass), even if there's more work and more parts, and maybe it's more expensive.

PS Do somebody know how work the TC Electronics system switching?
Title: Re: How increase the quality of my pedals
Post by: tonight, we ride on May 14, 2018, 05:30:36 PM
I see a lot of people mentioning board mounted jacks/potentiometers here and would like to share a different opinion.

In my experience you will get much better reliability using wired leads to connect your board to any "external" components such as jacks or potentiometers. Basically, anything that you are going to physically interact with on the pedal should have some sort of strain-relief to its connection to the PCB/Vero as a way to isolate physical stress from any solder joints. Using a wire instead of a board mounted component allows some wiggling to take place without failure occurring at the solder joint.

When I hear quality, I think reliability, and this is one of the big ones for me. If a pedal is going to last then it either needs the board isolated from that physical stress, or you need to get serious with some Loctite to ensure that a loose potentiometer nut isn't going to put stress on your board-mounted solder connections which then causes your pedal to fail.

Title: Re: How increase the quality of my pedals
Post by: thermionix on May 14, 2018, 08:50:59 PM
^ I'm with you 100%.  I do (literally) tons of tube amp repairs, and by far the most common failure on newer amps is cracked solder joints on board-mounted jacks, pots, and tube sockets.  Even more than tube failures, and tubes are socketed because they're supposed to fail.
Title: Re: How increase the quality of my pedals
Post by: Rob Strand on May 14, 2018, 09:28:28 PM
QuoteIn my experience you will get much better reliability using wired leads to connect your board to any "external" components such as jacks or potentiometers. Basically, anything that you are going to physically interact with on the pedal should have some sort of strain-relief to its connection to the PCB/Vero as a way to isolate physical stress from any solder joints. Using a wire instead of a board mounted component allows some wiggling to take place without failure occurring at the solder joint.
If you need a PCB for pots it's best to separate it on it's own board.  Perhaps even letting small boards float instead of being mounted to the chassis.

Pots with longer leads, like this help reduce stress,
http://www.negatron.org/wp-content/uploads/2009/02/onboardpots_508.jpg
Title: Re: How increase the quality of my pedals
Post by: ElectricDruid on May 16, 2018, 06:06:41 PM
Quote from: tonight, we ride on May 14, 2018, 05:30:36 PM
I see a lot of people mentioning board mounted jacks/potentiometers here and would like to share a different opinion.

I'd like to share a different angle too. I design effects PCBs with a view to helping beginners build pretty complex things (flanger & digital delay so far) and using board mounted pots makes the builds "more reliable" in the sense that there's much less that can go wrong! You put the pots in, you solder, and (generally) it works. Off-board wiring is one of the major causes of "what's wrong with my X?" threads on here. You've got jacks, a 3PDT, and pots, and a wrong wire on any of them will make the thing go wonky. Anything you can do to reduce that is a massive plus.

Obviously this is only my personal slant, and other people have different priorities, but I'll happily trade an occasional cracked solder join on a pot for the support nightmare that off-board wiring represents. In fact, so far, I haven't received any mail about the pot solder joints (lucky me!). If I was designing stuff for gigging musicians to sling in and out of a van every night, or for their roadies to chuck down a flight of stairs, perhaps I'd make different design choices (probably pot the whole lot in resin or something!). It depends on your end user and your purpose.

T.
Title: Re: How increase the quality of my pedals
Post by: amptramp on May 16, 2018, 06:54:12 PM
The advice I got from a marketing man at the avionics company I worked at was, "Design it to be maintained by a guy with a bone through his nose."

If you design it for a roadie who says "Okk, ook", eats bananas and drags his knuckles on the ground, not only will you have a survivable piece of equipment, you will have a shockingly accurate picture of the roadies who abuse it, sort of like the monkeys on the American Tourister luggage ads a few years back.
Title: Re: How increase the quality of my pedals
Post by: PRR on May 16, 2018, 07:17:54 PM
> abuse it, sort of like the monkeys on the American Tourister luggage ads a few years back.

QUITE a few years. Maybe before some folks here were born. So here it is again:

https://www.youtube.com/watch?v=8C-e96m4730
Title: Re: How increase the quality of my pedals
Post by: thermionix on May 16, 2018, 07:32:04 PM
I remember it, barely.  Chimps beating OJ Simpson with sticks, right?
Title: Re: How increase the quality of my pedals
Post by: reddesert on May 16, 2018, 07:47:16 PM
I don't design or repair effects professionally, nor am I a roadie.  Yet IMO, board mounted jacks are more of a problem, board mounted pots less so.  Jacks see more force in normal use. Board mounting pots makes DIY projects much easier especially since many DIY projects have a lot of knobs (4 knobs = wiring 12 pot terminals, while wiring 4 jack terminals isn't that big a deal).
Title: Re: How increase the quality of my pedals
Post by: thermionix on May 16, 2018, 07:58:19 PM
Quote from: reddesert on May 16, 2018, 07:47:16 PM
Yet IMO, board mounted jacks are more of a problem, board mounted pots less so.  Jacks see more force in normal use.

Yeah definitely, cables get more serious tugs than knobs do.  Of course it all depends on how things are used.  A single pedal on the floor will get dragged around by the guitar cable, stepped on by the singer, etc.  A pedal mounted in the middle of a tidy pedalboard won't get that kind of abuse.
Title: Re: How increase the quality of my pedals
Post by: chromesphere on May 16, 2018, 10:42:04 PM
You can honestly improve the quality (look and feel) and reliability of your pedals substantially by spending only an extra few dollars on proven reliable hardware.

Grub screws in plastic knobs can thread out without much effort ("economy" clone knobs) causing the knob to spin on the pot shaft, the knob is a throw away.   They move around and are far too delicate in my opinion.

For audio jacks I never understood why people buy cheap low quality audio jacks to save 50c or whatever, they take a lot of mechanical stress.  This could be something we learn with experience, I recall a few incidences myself with economy jacks :-X  I never touch these jacks anymore, not even if I'm in a pinch.  They don't last and can fail (internal shorting of the pressed metal wafers, a real headache to fault diagnose as well).

Title: Re: How increase the quality of my pedals
Post by: ljudsystem on May 17, 2018, 05:37:11 AM
 :icon_lol: that was hilarious! They never ran that on swedish tv when I grew up!
Title: Re: How increase the quality of my pedals
Post by: ElectricDruid on May 17, 2018, 10:51:38 AM
There's probably someone doing user analysis at Youtube who's baffled by the sudden spike in hits for an ancient commercial featuring a gorilla and a suitcase!
Title: Re: How increase the quality of my pedals
Post by: PRR on May 18, 2018, 09:38:32 PM
This one is also good:
https://www.youtube.com/watch?v=749iU2Zv1kw
Title: Re: How increase the quality of my pedals
Post by: Rob Strand on May 18, 2018, 10:34:48 PM
Posted by: PRR
QuoteQUITE a few years. Maybe before some folks here were born. So here it is again:

The US is shocking for luggage damage.   Some of the aluminum cases for our medical equipment were completely destroyed in the US.    In one case the entire corner was indented about 30mm.  It was along the 45deg line on all axes of the corner.  That's very hard to do, to the point where I suspect it was done deliberately.  Fortunately the equipment was surrounded by 100mm of high density polyurethane foam.
Title: Re: How increase the quality of my pedals
Post by: ljudsystem on May 21, 2018, 03:07:28 AM
Speaking of luggage damage...  ;D

https://www.youtube.com/watch?v=5YGc4zOqozo