Search found 1427 matches

by Nocentelli
21 Nov 2020, 08:44
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Amazonbasics - Overdrive
Replies: 27
Views: 2334

Re: Amazonbasics - Overdrive

FiveseveN wrote: 19 Nov 2020, 21:58 What is your test methodology?
double-blind faith
by Nocentelli
19 Nov 2020, 06:15
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 177
Views: 71455

Re: Wampler Velvet Fuzz [traced]

Maybe tailoring the bass on the emitter, like in a Marshall amp first stage? (there is a 2.7K + .68uF on one channel and a 820R +330uF on the other) This might be better achieved with a "preamp bass" pot instead of a switch, e.g. use a 1kB with the wiper connected to the fat boost stage e...
by Nocentelli
07 Nov 2020, 14:39
Forum: DIY Stompbox designs
Topic: LMNC triple splashback delay
Replies: 1
Views: 247

LMNC triple splashback delay

Image

Amazing crazy 3xPT2399 circuit, schematic is a bit tricky to interpret, might try and breadboard a stripped down version:

https://youtu.be/MuSJ_jR3K88
by Nocentelli
11 Oct 2020, 21:46
Forum: Boutique Stompboxes dissected...
Topic: J. Rockett Ape - tiny tape heads??
Replies: 6
Views: 763

Re: J. Rockett Ape - tiny tape heads??

ALL of the analogue electronics of the entire Echoplex unit ("the entire analogue circuit from input to output including the sonic influence of the tape heads.") hmmm, the bit in italics makes me suspicious. i wonder if they have perhaps concluded that some other magnetic/electronic coupl...
by Nocentelli
04 Oct 2020, 17:13
Forum: DIY Stompbox designs
Topic: A simple PT2399 diy flanger pedal?
Replies: 36
Views: 21958

Re: A simple PT2399 diy flanger pedal?

jhergonz wrote: 04 Oct 2020, 11:57 anybody have a schematic for this?
Dual-PT2399-flanger.jpg
by Nocentelli
28 Sep 2020, 18:36
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Snarling Dogs Blue Doo - Guts [schematic]
Replies: 18
Views: 9322

Re: Snarling Dogs Blue Doo - Guts [schematic]

I think it is quite possible that Captain6string designed the circuit "correctly" but snarling dogs messed up in the production. Interesting read, but I'm not sure about this bit: "Guitarist Jimmy Page used a Micro Synthesizer on Led Zeppelin’s recording of “No Quarter”" I am fai...
by Nocentelli
17 Sep 2020, 22:04
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Systech - Overdrive
Replies: 35
Views: 14199

Re: Systech - Overdrive

Welcome to FSB I should think ring to EQ3 and tip to EQ1/2 should do it for most common expression pedals. The pot here is used as a variable resistor (5k, common exp. pedals are 10k), not a voltage divider like the gain and distortion controls so it only needs two connections. btw the links to any ...
by Nocentelli
11 Sep 2020, 17:41
Forum: Boutique Stompboxes dissected...
Topic: Mid-fi Clari(pirate)
Replies: 5
Views: 745

Re: Mid-fi Clari(pirate)

The depth pot 1k isn't strictly necessary, but again, you could have a flying component. Yes, it is possible to use the case as a ground point: You would need to solder a short length of wire (or 1k resistor) from lug1 to the back of the pot, and the case of the pot *should* be grounded via the encl...
by Nocentelli
10 Sep 2020, 21:45
Forum: Boutique Stompboxes dissected...
Topic: Mid-fi Clari(pirate)
Replies: 5
Views: 745

Re: Mid-fi Clari(pirate)

You could do it without using a second 386 chip: The daughter board in your link is designed as an add-on to pt2399 delay circuits which typically won't have enough boost from their input stages to drive an LED. You could use the output from the pitch pirate's 386 (pin 5), and run it through a "...
by Nocentelli
10 Sep 2020, 18:24
Forum: Boutique Stompboxes dissected...
Topic: Mid-fi Clari(pirate)
Replies: 5
Views: 745

Re: Mid-fi Clari(pirate)

Brief answer - Yes, I should think so. You'd need to take a tap off the input signal from the main board to feed the envelope daughterboard input, and you might find some odd interaction between the two depth pots, but it's a pretty wild pedal anyway.
by Nocentelli
16 Aug 2020, 23:21
Forum: Boutique Stompboxes dissected...
Topic: Southampton Pedals - Fifth Gear Overdrive
Replies: 2
Views: 741

Re: Southampton Pedals - Fifth Gear Overdrive

It's extremely similar to EQD Speaker Cranker.... Added "Heat" knob seems to be just a pot wired in series with the 10K collector resistor: lug 1 to the 10K resistor, lug 2 to collector, lug 3 unconnected The "heat" control was seen on the Lollygagger Canaglia a couple of years ...
by Nocentelli
12 Aug 2020, 09:59
Forum: Boutique Stompboxes dissected...
Topic: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)
Replies: 23
Views: 3008

Re: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)

...I wonder if with the Baxandall transistors based there was an easy mod to create a mid bump or a mid cut without adding another band. Maybe is not possible. You could experiment with switching in a larger cap in parallel with the lug3 treble pot capacitor to give a mid boost: tone-stack-mid-boos...
by Nocentelli
12 Aug 2020, 09:38
Forum: Boutique Stompboxes dissected...
Topic: Fuzzlord Void Fuzz [traced]
Replies: 2
Views: 794

Fuzzlord Void Fuzz [traced]

Seems to be a variation on the Colorsound OKF, with trimmers for bias and fuzz: Guts pic originally posted at DIYSB
FUZZLORD-VOID-MASTER.png
My guess -
voidmaster.bmp
voidmaster.bmp (65.31 KiB) Viewed 790 times
by Nocentelli
11 Aug 2020, 12:43
Forum: Boutique Stompboxes dissected...
Topic: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)
Replies: 23
Views: 3008

Re: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)

Is there some easy trick to get a scooped mode option? With a baxandall, with both treble and bass controls at maximum (and the volume reduced a little) you will get a mid "scoop"; both controls at minimum (and a little more volume) should sound like a mid "boost". In both scena...
by Nocentelli
09 Aug 2020, 10:51
Forum: Boutique Stompboxes dissected...
Topic: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)
Replies: 23
Views: 3008

Re: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)

Can anyone explain what's happening with the tone control section? I have limited technical knowledge, and I'm confused as to why one side of the treble control connects to the collector of T4. BOTH pots connect to the collector. It's a baxandall bass + treble control: Both tone pots have their &qu...
by Nocentelli
31 Jul 2020, 23:17
Forum: Boutique Stompboxes dissected...
Topic: Fairfield Circuitry - The Unpleasant Surprise
Replies: 29
Views: 9424

Re: Fairfield Circuitry - The Unpleasant Surprise

turbofeedus wrote: 23 Jun 2020, 17:43 Bugg is doing it, schematic should be up at some point.
https://www.pedalpcb.com/product/calamityfuzz/
_20200801_001526.JPG
by Nocentelli
29 Jul 2020, 21:59
Forum: Boutique Stompboxes dissected...
Topic: Seppuku FX Mind Warp
Replies: 39
Views: 17899

Re: Seppuku FX Mind Warp

digitalzombie wrote: 29 Jul 2020, 21:42 .....from what I understand the 78L05 is supposed to be sending 5 volts to pin 1. I've got 9.76V going into the 78L05, and 8.72V coming out. I tried another PT2399 I had laying around and no change.
Flip it around? I have had pinout issue with 5v regs before.
by Nocentelli
27 Jul 2020, 00:18
Forum: Pedal Debugging & Troubleshooting Support
Topic: DMB Lexi pedal, gated fuzz!?!?!
Replies: 63
Views: 4358

Re: DMB Lexi pedal, gated fuzz!?!?!

Manfred wrote: 26 Jul 2020, 21:00 redrawing of the traced schematic
Gain pot connections look odd - output should be from lug 2 rather than 3?
by Nocentelli
22 Jul 2020, 22:08
Forum: Boutique Stompboxes dissected...
Topic: Dunlop - JHF3 Band of Gypsys Fuzz Face [traced]
Replies: 26
Views: 12466

Re: Dunlop - JHF3 Band of Gypsys Fuzz Face [traced]

Quick redraw of the schematic:
BoG_schematic_nocentelli.bmp
BoG_schematic_nocentelli.bmp (63.61 KiB) Viewed 414 times