Search found 123 matches

by Liquids
27 Dec 2014, 14:37
Forum: Boutique Stompboxes dissected...
Topic: Fryette Effects - SAS EF86 Overdrive [traced]
Replies: 162
Views: 71611

Re: Fryette Effects SAS EF86 Overdrive [traced]

I have one too and the pedal sounds great if I cut down the treble on my DRRI head otherwise it's just too harsh but then my other pedals don't sound good. Any suggestions which capacitors to change... to tame down the harshness. Anyone knows what to do with volume issue too? Thanks! From the schem...
by Liquids
01 Oct 2014, 16:12
Forum: Boutique Stompboxes dissected...
Topic: ZVex Mastotron [guts, schematic, PCB layout] [traced]
Replies: 47
Views: 9042

Re: ZVex Mastotron [guts, schematic, PCB layout] [traced]

Just wanted to note that the 500k pinch/100k feedback resistor is a good area for expirimentation. 100k is not a bad value (which you get if you "jumper" the PW/Pinch pot), but you can get a lot of interesting fuzz/drive range below 100k. 10k even, maybe 1k or 2.2k, or anywhere in between....
by Liquids
10 Sep 2014, 00:39
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 103
Views: 55134

Re: Micro Synth XO Version EHX (half-schematic) [schematic]

I know it's a little late, but I'm comparing schematics of the old to the XO version. Not that the old schematic didn't have a few errors, but I breadboarded most of it (Especially the filter and trigger sections) running on bipolar power, so I'm familiar with the errors on the late "original v...
by Liquids
12 Mar 2014, 19:32
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Trace Elliot SMX Dual Compressor
Replies: 22
Views: 8920

Re: Trace Elliot SMX Dual Compressor

Take as many pictures as possible, both sides, some angled shots of the component sides so component values can be read, anything where holding the pcb up to the light reveals some of the traces helps...etc
More is better most of the time in terms of pcb photos to yield a schematic.
by Liquids
11 Mar 2014, 13:51
Forum: Ready-To-Build Effect Projects
Topic: EH - Bass Micro Synth
Replies: 121
Views: 19095

Re: EH - Bass Micro Synth

With the schematic in hand, you should be able to locate the components/wires that feed the input and output of the circuit via continuity.
by Liquids
04 Sep 2013, 18:05
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: ROYAL - FUZZ BOX
Replies: 5
Views: 3811

Re: ROYAL - FUZZ BOX

A couple of things to consider - the original transistors were 2SC828 throughout. These are quite low Hfe in the original units. If you use modern high Hfe devices, they sound quite different. Use 2N2222. Good advice IMO. I like the 2N2222 and it's variants for circuits that are fuzz and/or trying ...
by Liquids
29 Aug 2013, 15:44
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Sola Sound - Tone Bender Mark I (1965) [schematic]
Replies: 325
Views: 197641

Re: Sola Sound - Tone Bender Mark I (1965) [schematic]

I'm not super techie...but in a circuit that is transistor based...here is my understanding.... Hfe only tells you so much. Maybe the circuit was designed around a certain understanding of the transistors being used...and then, given how variable old components like GE transistors are, and how tuned...
by Liquids
27 Aug 2013, 20:32
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: EH - Deluxe Octave Multiplexer
Replies: 67
Views: 30169

Re: EH - Deluxe Octave Multiplexer

My question involves the highlighed resistors. They look to be either 10k or 100k, but it's a big distinction at this location in the circuit. Is the EH man here? I knwo the schematic says 10k's here, basically, but the schematics allegedly have some intentional errors to throw people off, even if n...
by Liquids
23 Aug 2013, 20:35
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: EH - Deluxe Octave Multiplexer
Replies: 67
Views: 30169

Re: EH - Deluxe Octave Multiplexer

Can anyone else post good high-res shot of at least the component side? I believe there are some component errors, particularly in the tracking filter section, but I'd like to be sure, and the current collections of images here and around the net leave a little bit to question. Does anyone here OWN ...
by Liquids
29 Jan 2013, 18:24
Forum: Pimp-My-Cheap-Pedal
Topic: Arion Stereo Flanger Mods/Upgades?
Replies: 12
Views: 9572

Re: Arion Stereo Flanger Mods/Upgades?

Thank link doesn't work, at least for me. Can you post it again, or somewhere different, please?
by Liquids
29 Jan 2013, 17:26
Forum: Modern Stompbox Effects (1975 - ...)
Topic: DOD - FX68 Super Stereo Chorus
Replies: 8
Views: 4703

Re: DOD FX68 Super Stereo Chorus

Did anyone find, or draw a schematic that is freely available for this pedal?
by Liquids
27 Jul 2012, 12:50
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Maxon CP-9 Pro+ Compressor schematic ?
Replies: 7
Views: 3833

Re: Maxon CP-9 Pro+ Compressor schematic ?

I'm rather surprised no one has gut shots of this, if it's still on the market.... I'd figure it was either a poor seller (hard to find someone with one), or a good enough seller that it's still around, and someone would have one. Honestly - while this compressor interests me, especially because it ...
by Liquids
27 Jul 2012, 12:50
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Maxon CP-9 Pro+ Compressor schematic ?
Replies: 7
Views: 3833

Re: Maxon CP-9 Pro+ Compressor schematic ?

I'm rather surprised no one has gut shots of this, if it's still on the market.... I'd figure it was either a poor seller (hard to find someone with one), or a good enough seller that it's still around, and someone would have one. Honestly - while this compressor interests me, especially because it ...
by Liquids
17 Jul 2012, 06:17
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 103
Views: 55134

Re: Micro Synth XO Version EHX (half-schematic) [schematic]

make sure you've got it oriented in the correct direction/pins. Like a previous poster said, check out the stompboxology article too. Audio probe...see if you get a big loud signal out of the 4013 at any point...
by Liquids
13 Jul 2012, 19:25
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 103
Views: 55134

Re: Micro Synth XO Version EHX (half-schematic) [schematic]

I don't know that I'd trust the schematic. One thing you can do in some areas, if things are on the breadboard, is refer to the arrangement of components on the earlier versions, for reference...there may be errors in the schematic, a personal error you made in duplicating it on the breadboard, a wr...
by Liquids
01 Jul 2012, 11:15
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 103
Views: 55134

Re: Micro Synth XO Version EHX (half-schematic) [schematic]

From what I understand, it's not unlike the Boss OC-2...clean signal and sub-octave signal blended....buta bit like a VCA where the clean signal acts like the gate for the suc-octave signal. Maybe the stompboxology article on sub-harmonic synthesis will help. Even if not directly addressed there you...
by Liquids
24 Jun 2012, 22:43
Forum: Boutique Stompboxes dissected...
Topic: Fulltone - Secret Freq [traced]
Replies: 33
Views: 19283

Re: Fulltone - Secret Freq [traced]

To me, anything that is active EQ (as good as it might be) is usually the antithesis of "natural." Well, I guess all the pedals that use the tube screamer tone control (or a varation with different component values), the Xotic pedals, the Ampeg V-series and SVT amps, the whole Tech 21 cha...
by Liquids
22 Jun 2012, 17:06
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Ibanez - CP-9 Compressor/Limiter [schematic]
Replies: 25
Views: 14875

Re: Ibanez - CP9 ( Compressor/Limiter ) [schematic]

'Old' type CP9 is more or less a Ross type with a LM13x00 chip - lots of info out there in that regard. But if it works and has value as an old pedal (or re-issue? not sure of the value of this pedal in the current market) you could easily build one cheaper, quieter, etc. There is somehow a differen...
by Liquids
26 May 2012, 16:14
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 103
Views: 55134

Re: Micro Synth XO Version EHX (half-schematic) [schematic]

generally in low voltage electronics, 1n914 and 1n4148 are the same. I think some diodes I got the other day actually were labeled 1n9148. I have a strange sense of humor, but I found that funny. Those two diode types are more or less 'generic' silicon types. They're not for ultra high voltage, ultr...
by Liquids
13 May 2012, 15:21
Forum: Boutique Stompboxes dissected...
Topic: Aphex - Punch Factory [gut shots]
Replies: 36
Views: 6514

Re: Aphex Punch Factory [gut shots]

So there is a vactrol in there....

But no one has shown a picture to help indicate what brand and model vactrol....

:slap: