Author Topic: cool reverb apart from switch spdt 'pop' issue  (Read 201654 times)

R O Tiree

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #100 on: February 26, 2013, 12:19:51 PM »
The solder mask is a bit of a faff to do, and time-consuming, I guess, not least because you actually have to cook it for an hour to do the final cure of the resin, but you definitely save time and effort on the soldering phase, fer sure. Sorry once again about the screw-ups.
...you fritter and waste the hours in an off-hand way...

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #101 on: February 26, 2013, 12:36:19 PM »
stop kicking yourself, its fine.... ;)

sounds like a bit of a lengthy process doing the pcb then...but great results.. :icon_cool:

may have this built by tomorrow!!.finished the box .whoohooo... :icon_cool:
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #102 on: February 28, 2013, 09:57:11 AM »
''ohhhhhhhhhhhh my god, its a FLYING SAUCER'' :icon_eek:...........(theremin sounds)>.....whooohoooooeeeeeeooooooohhhoooooowweeeeeehooooo......







reverb.

Middle led is white (always on)

Outer leds blue on/off

text could have done with being larger to get a better etch....but hey this is mine anyway....love it. :icon_cool:

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

bluebunny

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #103 on: February 28, 2013, 11:34:43 AM »
Nice one, Rob.  This is also on my list of must-do builds.  Any gut shots?  Love to see how you squeeze a board and a brick in that enclosure.
  • SUPPORTER
Ohm's Law - much like Coles Law, but with less cabbage...

R O Tiree

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #104 on: February 28, 2013, 12:58:24 PM »
Lovin' it, Rob - particularly the retro-UFOs.

Purdy
...you fritter and waste the hours in an off-hand way...

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #105 on: February 28, 2013, 01:01:26 PM »
cheers guys, yeah its the old 'George Adamski ufo...i have the book ''the flying saucers have landed''  so it seemed apt really, plus it goes well with my ufo delay too.. 8)

gut shot in a bit... ;)
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #106 on: February 28, 2013, 01:33:50 PM »



yes 2 pots are backwards. ::)..i'll sort that.. ;D ;)




i slid a piece of clear plastic between the pots/pcb, this is just before i finished it off and straightened it up...

the backplate with foam holds everything firmly in place, i had to snip the bricks pins back, but now with the revised version it should be a doddle to build...

 ;)

special thanks the R.O.Tree (mike) for his great work on the pcb/layout, brilliant man. :icon_cool:
« Last Edit: February 28, 2013, 02:34:29 PM by deadastronaut »
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

bluebunny

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #107 on: March 01, 2013, 11:33:55 AM »
Didn't get past 0:33.  Brilliant video.   ;D

yes 2 pots are backwards. ::)..i'll sort that.. ;D ;)

It's allowed.  For a lefty.  ;)

Edit: BTW, is that a bit of reflect-o-porn going on in the bottom of the pedal??   :o
« Last Edit: March 01, 2013, 11:38:33 AM by bluebunny »
  • SUPPORTER
Ohm's Law - much like Coles Law, but with less cabbage...

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #108 on: March 02, 2013, 04:42:57 AM »
reflecto porn?

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

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Jdansti

R.G. Keene: EXPECT there to be errors, and defeat them...

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #110 on: March 02, 2013, 09:44:01 AM »
lol, stunning resemblance... ;D
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

quad

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #111 on: March 03, 2013, 09:00:18 AM »
It sounds and looks great, deadastronaut.

Time to get the brick.

deadastronaut

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #112 on: March 04, 2013, 03:19:39 AM »
looking good quad... :icon_cool:


haven't you got a small to92 voltage reg?...might be a problem getting it in a 1590b..
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quad

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #113 on: March 04, 2013, 11:19:31 AM »
Good point. I might have to swap it with a small one.

Mustachio

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #114 on: March 04, 2013, 11:30:09 AM »
I think the pinout of the larger voltage regs like you have in there are backwards to the smaller to92 versions. Not sure if you had already checked it or not, just a heads up.
"Hhhhhhhnnnnnnnnnnnnngggggggg"

quad

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #115 on: March 04, 2013, 06:22:21 PM »
Thanks, I'll keep an eye on those pins.

quad

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #116 on: March 05, 2013, 06:17:48 PM »
What is the function of this diode?

armdnrdy

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #117 on: March 05, 2013, 08:01:32 PM »
It protects the regulator against input short circuit.
I just designed a new fuzz circuit! It almost sounds a little different than the last fifty fuzz circuits I designed! ;)

Jdansti

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #118 on: March 06, 2013, 03:32:58 AM »
+1

More specifically, the purpose of protection diodes on a regulator circuit are to prevent damage to the regulator should one of the regulator's associated caps discharge back through the regulator during an input or output short.



http://www.onsemi.com/pub_link/Collateral/LM350-D.PDF
R.G. Keene: EXPECT there to be errors, and defeat them...

R O Tiree

Re: cool reverb apart from switch spdt 'pop' issue
« Reply #119 on: March 06, 2013, 05:09:45 AM »
There was a thread about this diode a while ago... It's there to protect the 7805 at power-down, or if the main circuit's V+ gets somehow shorted to GND. If the voltage at pin 3 ends up appreciably higher than that at pin 1 then the 7805 can be fried. With the diode in place, the charge in C4 can be dumped to the input side very fast and the 7805 is safe.

The thread I'm thinking of was about a PT2399 circuit and the OP had observed that he kept having to replace this regulator and the advice from the "old and bold" was that this diode was seen far more often years ago, but seems to have been forgotten about, even though you'll still see it in app notes and datasheets... but who reads them anyway? Just copy a circuit fragment, sure it'll work...

Oops, jdansiti beat me to it
...you fritter and waste the hours in an off-hand way...