I'm going to be selling my hardly used PCB making stuff as I don't have the room or space for it.

I've got a heated bubble etch tank, RRP £284, and it's this model

I also have a UV light tank, RRP £149, and it's this model

Both have only been used a few times, and in great condition. If I can find them, I also have inject printer sheets, and some laser printer sheets for the artwork.

RRP for both is £434, Looking to get £350 for both, but I'm open to offers. I would rather someone could...

Does anyone know the differences between the little three rascals from the Dunlop Fuzz Face mini series? I just ordered a used silicon version for cheap, and I am curious about what the differences are, and if it can be modded to any of the other two versions.

Regards
radioegg

Hi all,
I am attempting to build a tonebender mkII following this great schematics

So far I get nothing, but that is usual ... I will start looking for errors once I get the icl7669s- the one I was using went to other pedal.

I have a bunch of soviet transistors GT1323 and GT1322, any points how to select 3 of them are appreciated.
the hfe;s are grouped : below 100, around 150, around 240 and over 350....

This question is about Marshall or Fender style tone stacks in JFET distortion pedals, specifically those which have sequential J201 stages.

The J201 gain stages are always in the common source configuration designed to give amplification and clipping. In some designs one of the later stages is a common drain (source follower) which is designed not to boost, but to buffer and have a high impedance in and a low impedance out.

I've read that:
a) a common source JFET stage has a higher output...

Luchansky Noisator

It's my very first design\hack and I have to worry you - it's not an effect for everyone. You can tell it from its name (I started designing it for my friend and wonderful musician Vladimir Luchansky and without his support there would be no noisator). Ok, let's talk about the effect itself.
At first - the demos:

Like any other noob I searched the web for some basic projects (by the time I started working on noisator me and my friend and collegue Ezhi...

I hope this is the right place to post... I lurk here and at the 'other forum' alot, but do not post much, especially here (for no particular reason).
This is basically a copy of a post that died 'over there'; i decided to start where i am NOW in the project, and hopefully you guys can help me not be so dumb at this...

OK so here is my rough schematic of what I am thinking..
I am VERY young at this, so be kind :)
Some components are known/obvious, some are TBD as I get further and further from...

Hey guys. Due to a lot of things going on right now, I'm taking a long hiatus from pedal building. I just don't have the time, space or motivation to dedicate to the hobby. I have collected a TON of various parts (pots, boxes, switches, resistors/caps, vero board, wire, transistors, etc) and I'm looking to barter for a Meathead Dark clone for my current band project. I'd prefer to not trade everything I've got, but I'd definitely do it if someone would be interested in trading a few pedals for...

just wondering if someone can post gut shots of the circuits to see if there's any difference.
if there isn't it should be possible to upgrade the 2880 with the software upgrade from the 45000 (the software I can provide and it is easily obtainable from ehx i believe) and eventually the 45000 foot controller.

thanks

Not much components. There's possibility of shrinking it down to an usb interface, or simply a wireless system (by adding a DAC). The problem is I know nothing about programming AVRs... :mrgreen:

Hi guys! I'm from argentina. I built sola sound 3 knob from GGG but i don't know which hfe will have transistor and what is voltage in Q3 Collector? So, i need for help. Pedal is working now.

SORRY FOR ME ENGLISH :oops:

schematic:

Looks darn near new. Works great. Just don't need it. $250 shipped and PP'd CONUS.

Well, that's not exactly a boutique stompbox, but maybe someone is still interested in tracing that one. It IS cheap, but still..
Here's what I found in the net. I even wrote to Samson, but of course they told me they can't supply me with schematic of actually produced unit.

Hey everyone,

I have been doing a lot of reading, in particular about input impedance lately. Generally speaking I like treble and so I want to attempt to make the impedance as high as possible. I've been realising however that pull-down resistors are generally going to bring your impedance way down (especially if you are aiming for something silly like 10Mohm input impedence). Anyway, I was having a look at my typical 3PDT switch wiring and I noticed I had a spare connection that would...

I have an old fashioned 3PDT style bypass strip that I've used for years, and it has come to the point where the pops are actually causing damage. My delay pedal (Boss DD3) get fizzy and low volume when activated. I suspect that the pop from the switching causes enough current to really muk things up on the input of the delay. After switching the DD3 on and off a few times it goes away.

So I got to thinking, is it possible to have a bypass system built specifically for delays that will not...

Hi guys!

I'm having trouble with my Dunlop Slash signature CryBaby wah pedal. No problems for three years or so but then it just stopped working. At first the sound was sort of fading out when the effect was engaged (no precise memories of this as it happened a year ago, the pedal has just been gathering dust since), now there's no sound at all when I switch the pedal on. True bypass works fine, the led lamp (the distortion circuit led to be exact) works normally. I've tried it with batteries...

Hello all,

Yesterday I had the chance to see for 10 minutes a disassembled EHX Nano Soul Preacher and I was shocked: 2 x ICL7660, 2 x LT1792 (or something like that) and 2x2N5484 (SMD)!!!
Unfortunately, I have no camera to take some gut shots :(

Anyone has more information about it?

Best regards!

Just another Tubescreamer with a limited tone control. Only reversed to get part numbers for modding.

this only works on the original eh clone theory, the one with the chorus vib/flange vib switch. the diy version can do it too if you use a cheap slider switch or maybe an on/on/on dpdt.

it's kinda cool, i don't know what the heck it does really, but it gives a really cool sound you can't get in either position of the switch, almost like it's both at once. i've talked about this for years,
but i don't know of anyone other than me to be dumb enough to try it.

anyways....

submitted for your...

Hi All.

I'm wanting to incorporate a passive mid cut, between say 300hz and 1k. I do want the intensity of the cut to be variable, but if the frequency could be variable too, thats just a bonus.

I realize I could build an active parametric eq, which would do the job to perfection, and I have considered it, but I'm wondering if it'll really worth my while, since:

1.) The OCD has way more volume on tap available than I'll ever need, and so the passive loss isn't an issue to me
2.) The idea of...

Anyone heard this one? Description sounds interesting, a little hard to interpret: This Distortion pedal has 2 gain control. It mean that can make sound from soft distortion to loud distortion sound. Gain1 increases treble distortion,adjust the former level of distortion. Gain2 controls the amount of bass distortion, adjust the saturation level of distortion. It has 3 knobs bass gain , treble gain , and level . Supposed to have a Mesa Boogie MK IV flavor. Will someone please buy this and post a...

Hi all,

I'm aware of the rate mod for the Behringer UV300, but was curious if there was also a mod to increase the Depth.

Has anyone done this? Any advice on where in the circuit a mod could be done?

I know that there are similar depth mods for pedals like the Boss CE-5, so figure that it should be as simple as placing an extra cap somewhere in parallel.

Hi all,

I am about to buy a used Morley Wah Pro Series like this for cheap:

I want to put a Tremolo circuit that is already built (Tremulus Lune clone from Musikding) into it ,after removing of the wah circuit, to adjust the speed of the effect with the treadle of the Morley.
The sweep mechanism of the Morley is an optical LED+LDR circuit, and I'd like to fit it in the tremolo circuit or wire a new one to replace the speed pot of the tremolo.

Do you guys think it is something doable? If...

Hi

I was wondering where to buy NKT23 transistors.

That will be cool if you can point me toward the right direction.
I don't want to pay a fortune for untested transistors...

Thx

I'm pretty sure there's a reason that there's different values of hFE for different species of transistors, from power transistors to small signal, and for families of resistors within each species, such as 2n2222 variants and such.

Is the intention to design with specific voltages and currents in mind, and then use the highest gain transistor within a family of transistors that have the general volt/current/frequency behaviors you want?

if you build a circuit for a specific function, do you...

I've been attempting to add an expression pedal output to adjust the modulation rate of a BBE Mindbender (true vibrato/chorus).I used a switched TRS jack socket between the board and the pot, and unshielded cable. The rate pot is situated at the opposite end of the pedal to the new socket, so the wiring runs the length of the board, and back.

Everything works OK when the pedal is in a disassembled state, with the new jack and wiring stetched out away from the board, but when packed into the...