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DIY Stompboxes => Building your own stompbox => Topic started by: Somicide on February 04, 2004, 03:18:54 PM

Title: Treble Boost
Post by: Somicide on February 04, 2004, 03:18:54 PM
I'm looking to tackle a treble boost, or something similar.  Any suggestions would be appreciated.
Title: Treble Boost
Post by: phillip on February 04, 2004, 03:22:22 PM
The Electro Harmonix Screaming Bird/Screaming Tree are simple little treble boosters, and they really boost the treble...some would say too much ;)  They've been knicknamed the "Screaming Audience."

They use easy-to-find Silicon transistors and aren't as picky with their biasing as the Dallas RangeMaster, which uses a Germanium transistor.

Phillip
Title: Treble Boost
Post by: blabj on February 04, 2004, 03:23:10 PM
mmm... there was an easy booster in the newbs.... you could try www.generalguitargadgets.com... theres some awesome stuff there.
good luck
callum
edit: try the rangemaster, lpb2 and the strat-o-blaster for some good ones... again good luck
Title: Treble Boost
Post by: Chris R on February 04, 2004, 04:13:20 PM
check out the RangePig from Marcos - Munky 's site

http://www.geocities.com/munkydiy/schematics.html

Chris
Title: Treble Boost
Post by: Somicide on February 04, 2004, 05:37:03 PM
thanks for the advice, I'll check all those out, and then see what goes from there.
Title: Treble Boost
Post by: Gearbuilder on February 04, 2004, 07:01:21 PM
Hi ,
Here's some sources about treble boosters
Rangemaster (Rorry Gallagher,Clapton,Brian May?) Apollo TB
http://www.geofex.com/
Brian May Treble booster and others http://www.boardsprep.com/mp3/BrianMayBoost.gif      Excellent !
http://www.boardsprep.com/mp3/treble_boosters.htm   some Tboost
Regards
Bruno
Title: Treble Boost
Post by: brian wenz on February 04, 2004, 08:17:47 PM
Hello Hello--
  The Range Pig is a VERY good sounding, silicon treble booster that does not have any of the  problems associated with the germanium TB's.
It's big, fat  [depending on how you tweak it] and simple to build.  I used two BC182L trannys in mine.  
Brian.
Title: Treble Boost
Post by: Rory on February 04, 2004, 08:33:09 PM
I really like the LPB.  I have a pedal that has the regular LPB and a screaming tree in one box.  Its really simple to do and sounds pretty good too.  What you do is do the regular LPB circuit, but leave out the caps.  You can then get a DPDT switch and wire two sets of caps to them, so that you can switch between regular and treble (this is basically the only difference).  I like .01 as my treble cap; it is quieter in volume compared to the regular boost, but still MUCH more than unity.
Title: Too MUCH Trebble???
Post by: petemoore on February 04, 2004, 09:01:06 PM
Not if you do ".007" and " THeGood The Bad and the Ugly" type theme songs all night...Spaghetti Guitars...
Title: Treble Boost
Post by: nightingale on February 05, 2004, 02:01:11 AM
hello~
the muffmaster here: www.muzique.com is a very useful treble boost..
i really likw the "egde" it gives to  other effects..
hth,
Title: Treble Boost
Post by: LP Hovercraft on February 05, 2004, 02:27:58 PM
The Orange Bass and Treble boost is pretty cool too.  Good luck getting an OC76 transistor, though.  I find that with careful biasing, one can make most non-leaky germaniums sound very nice.  It is a very useful skill to develop if good vintage boost tones are what you are after.  Have any of you tried the Brooklyn Treble Tripler off of Steve Daniels' site?
Title: Treble Boost
Post by: LP Hovercraft on February 05, 2004, 02:28:14 PM
The Orange Bass and Treble boost is pretty cool too.  Good luck getting an OC76 transistor, though.  I find that with careful biasing, one can make most non-leaky germaniums sound very nice.  It is a very useful skill to develop if good vintage boost tones are what you are after.  Have any of you tried the Brooklyn Treble Tripler off of Steve Daniels' site?
Title: Treble Boost
Post by: Gearbuilder on February 05, 2004, 03:14:00 PM
Hi,
Does the Orange sound like the Range-master?.I've got one OC 76 but i don't know if i make a third treble booster or an orange TB .
Thanks
Bruno
Title: Well yes and no...
Post by: petemoore on February 05, 2004, 03:36:58 PM
The cap blend knob at the input is easy to bypass...it lets you have tone control on what would otherwise be a Rangemaster...I believe the Apollo and not so sure the Orange are like this.
  This setup does take some 'push' from the ckt though. If I were to start another one I would opt for the 'shosen one', or use switchable input cap...but that's just me...
Title: Treble Boost
Post by: LP Hovercraft on February 05, 2004, 07:40:04 PM
The Orange Booster schematic is posted on Geofex.com.  It says David Gilmour and Rory Gallagher used to use them.  I'd put the sound as being much like a Rangemaster.  Perhaps even glassier tones.  It will put a little drive in the front end of your amp for Iommiisms.  I'd say building it was totally worth it, but it just depends on what you are looking for, I guess...
If you already have the OC76, the rest of the parts are around five dollars.  Cheers!
Title: Treble Boost
Post by: brian wenz on February 05, 2004, 11:11:06 PM
Hello Hello--
  I don't mess with any of the treble boosters with a "tone" control in front of the circuit......sucks too much "oommphh"  [tone and gain] from it.
An Orange TB  [without the tone control and with an OC76] does sound different than a Rangemaster [with an OC44].
Which one you prefer depends on your ears and the guitar and amp!
Brian.
Title: Ge hassles..
Post by: petemoore on February 06, 2004, 03:00:44 AM
Thesse Rangemaster type Ge boosters can be tricky.
 without the 'right' transistor [or a couple few?]
 I never know zackley what a RM sounds like, but driving the clones I've built into a SS amp was..well different...
 I'd stick with a non Ge Booster, or get a some cool Ge's first, and Re read GEO Tech of the Rangemaster article first a couple of times
Title: Recent Rangemaster findings
Post by: petemoore on February 06, 2004, 01:09:56 PM
Yesterdays Rangemaster build report:
 I followed RG's tech setup pages.
 I used onboard pots for Rb1 and Re, the Q collector 10k of course is an outside adjustment.
 I started with a 'good' Ge transistor [LoLeakage] and it's Hfe is 104.
 Using the teeny cap [.0047], the tone is Real Cool and the output sounds like less than unity, [Ac averaged to DC it probably is] but the treble cut and the attack transients make it seem like it would cut through no prob in a band setting...these are pre-'field' tests [not 'worst case scenario].
 The tones are awesome, quite a different playing exp.
 I tried it with a Mosfet Booster after it and that too [fo course sounds a little different] worked Really Well...I would think Mosfet link might mellow out the Rangemaster compatibility with SS amps.
 FOrtunately I think I got a little 'closer'...I've been working Ge Boosters [I think this makes 6], with 'on' one day 'off' the next opinions of the results...this one was tested by setting it next to the very cold window, allowing it to cool below most temps it would see at a gig, and then warmed it up with my finger to see what it did and it got noticably but slightly changed sounds and volume...All tight in the box W/ TB...I think I'll leave it there...it's very charming just as it is now, I have a tendancy to 'alter' ckts even after I find a vere satisfying tone...hopefully typing this and knocking on wood will prevent my meddling further with it !!!
  here I go .. it could use a little more output...lol
Title: Re: Ge hassles..
Post by: Doug H on February 06, 2004, 01:19:53 PM
Quote from: petemooreThesse Rangemaster type Ge boosters can be tricky.
 without the 'right' transistor [or a couple few?]
 

I have experienced the same thing. I've got some good Ge transistors but every time I breadboard this thing, no matter what transistor I use, there is something missing. With the input cap right and bias right, I get the magic "whine" I hear in recordings and clips. But it always sounds a little thin (esp with that input cap value) and I never get those note blooms like you hear in the clips at tonefrenzy and some other sites. (That's an awesome clip- check it out if you get a chance.)

Anyway, I want to experiment with the Vox treble booster at some point. I have heard very good things about it and I seem to fare better in the Si than the Ge world anyway.

Doug
Title: Yes It Kind of makes you wonder ...
Post by: petemoore on February 06, 2004, 02:24:09 PM
what's up with that, one of those 'see it to believe it'///seems to be a huge gap between anything I get and those clips.
 So not to worry, although it doesn't sing like that by itself, it does provide a widnow to 'exotic' character TB tones, which I happen to be quite fond of, and just re[inforced my feelings with an hour of playing it.
 A sllight noisyness [amplitude of hiss rises in 'tone' and amplitude] waterfall sound can be heard when no notes are present at input...the transistor may have some history of reverse hookup...it was found and tested..it believe it came with my first SB order [a Long time ago]. I tried some NTE158's and they were noisey too [not as much] so maybe something about the pots there makes It noisier than normal...a simple test [using low% tolerance R's close to measured from pot in a new board ...use the potted board for setups]. the  pots were noisey when I cranked them for biasing and sound testing...like to the point where it's hard to tell if that's the noise I was hearing when they were set was caused by them, like vibration would be enough to cause them to add noise?]. As long as this paragraph is, I've learned to live with the noise of my RM clones, because the unique tones are worth it.
    Using it with the small .0047 incap and the Mosfet after to fatboost it is loads of clean fun...like clean dude's first dirt stains !!!
Title: Treble Boost
Post by: Gearbuilder on February 06, 2004, 07:10:14 PM
Hi,

I've finally made an Orange Treble Bass Boost with an OC 44(old black one)It sound great and thicker than the twoDallas Rangemaster Clones(one with OC76 and one with an OC81)and no hiss!
Look at them!
N°1
ftp://zepfloyd93.no-ip.info/Photos/Range%20and%20Orange/My%20Studio%20003.jpg
N°2
ftp://zepfloyd93.no-ip.info/Photos/Range%20and%20Orange/My%20Studio%20002.jpg
Orange Treble Bass
ftp://zepfloyd93.no-ip.info/Photos/Range%20and%20Orange/My%20Studio%20001.jpg

Bruno
Title: Treble Boost
Post by: brian wenz on February 07, 2004, 12:09:29 AM
Hello Hello--
 Why not put the OC44 in the Rangemaster where it belongs ??
Come to think of it, doesn't the Orange take an OC76?  !!
Brian.
Title: Treble Boost
Post by: Gearbuilder on February 07, 2004, 03:13:04 AM
Hi
 Thank you Brian i'm going to try the OC 76 in the Orange TBB (i didn't think about that because when i built it i look in my germ stock and i didn't find the OC76.Then i try the OC 44,whaooo ,in this pedal it's terrific,maybe the low gain combined with the variable frequency range of the Orange allow to give it a good tone.The germs don't have a flat bandwidth and when i've made the rangemaster ,i think that the OC 76 was better than the OC44.
At this time my scope wasn't  out of order and i tweak the Rangemaster with a sine to have the +24dB at the right frequency ,and sometimes the gain was good but there's too many hiss to use it.
Bruno
Title: Treble Boost
Post by: brian wenz on February 07, 2004, 11:06:41 AM
Hello Hello-
   Yeah, every RM I've built had to have the  470K, 68K, and / or the 4.7K adjusted  to suit the germ. tranny being used.  Every one of 'em was different!   The values of the Orange TB probably matched up better with the OC44 you were using!
Brian.
Title: Just the Tranny?
Post by: petemoore on February 07, 2004, 01:31:13 PM
Is the tranny by far the largest contributor of hiss [it would seem so] or have you had any luck 'biasing the hiss oout?'
 Justt kind of wondering...
 Rangemasters...I thought I gave up on em for their abundance of such problems some time ago...
 Thinking I'm going to be trying a Rangepig type setup next...
Title: Treble Boost
Post by: Gearbuilder on February 07, 2004, 06:55:51 PM
Hi,
yes i've got the same problem with my other RM,3 RM aand the three different but i didn't have any problem with the OC 44 Orange TBB ?
Try yourself and post the results ,i'm curious to know if it's an happy mistake! Perhap's the orange TBB wins against my RM's because the layout is better than the RM?
Bruno
Title: Treble Boost
Post by: brian wenz on February 07, 2004, 07:01:44 PM
Hello Hello--
   I think it depends on the amount of gain you want to get out of the tranny and the properties of the tranny itself.   OC44, OC76, etc. all have different characteristics.   Then, any given batch of OC44  [or whatever..] will differ from each other in gain and noise.  
Brian.
Title: Treble Boost
Post by: Gearbuilder on February 07, 2004, 07:20:11 PM
Hi,
Yes i think so,do you know the SFT 377? I'm asking me  if it was used in a commercial pedal'Vintage for sure.I've got thousand of schematics but i never see only one.Perhaps they are good for VOX treble booster type (SFT337)
i didn't found any datasheet on the SFT337 then i'm going to try with this schematic.
Bruno