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Bought a used RAT to mod and I see that R1 is toast. can't read the colors and its testing as 47ohm which I don't think is right. I found schematics that say it's 1M and another that says 100k....anyone know what the current Chinese made RAT R1 calls for? TIA

or another pedal that shares the same layout? one knob + switch. if not i'll wing it, but thought i'd check.

Can it handle 12 or 18v? If so, is there a noticeable sound difference?

Left them off my Tayda order and I’m halfway through fixing my Pro Jr. Fromel kit was missing a few parts and I haven’t gotten a response to my email. Figured I’d tack what I need onto my Tayda order, but of course I grab 1/8w… Will Venmo some $ to cover cost and shipping if anyone does have...

do you think I'll have any issues? I wouldn't think anything of it except it almost looks like there's a copper trace right in the outline of the resistor...

I'm sure this has been asked before, but Im having trouble searching the forums... ideas on how i can increase bass? increasing the volume makes things very icepicky Believe I read to increase c6?

So i'm 92.3% finished with this and when I reach for the 2 BAT41's it calls for......i only have 1. Possible substitutions? replace both w something or ok to keep 1 BAT41 ? I have BAT46's, and a variety of other diodes

Q1 and Q2 are MPSA18's and I socketed Q3 as I dont have the 2n2907A that it calls for. no matter what I've tried subbing in (BC179, 2N4125, 2N5401 only because they're on hand) I can get it to sound ok, but only with the oscillation all the way down. If i move it pretty much at all - squeal...

using their breakout board for the switch so I’ve connected it to I, O, L+, L-. Where / how do I connect the led? unless I double up a connection somewhere I don’t see where. L+ and ?

Working on a compressor pedal that calls for an LM317 and it indicates a TO220 package (the board has room for it). I ordered a few LM317's that are TO92. Ok to use? Here is the doc: GCI Compressor

Z1, Z2, Z3 call for a 1N4739A zener diode. Can I substitute a 1N5239B? its also 9V, but hoping someone can confirm.

My greengage sounds great, except that I cant turn it up past 9:00 without getting into earbleed territory. I read on here to swap the volume pot for something lower (50k or 25k). I put in a 50k - maybe a little better, not nearly enough. So i put in a 25k, and zero change, still need to...

Dark rift build from a month or 3 ago...I had a loose jack so tightened everything up....when I snug up the input/output jacks and they make solid contact with the case, my led will stay on all the time. pedal turns on and off and functions fine, just constant LED. obvious issue or pics...

Has anyone ever used spray on plasti dip as electrical insulation? I have some low gain russian transistors that I made darlington pairs out of and i want to make sure they're not gonna short out on anything before i jam them back into the case. Was thinking to solder on some leads and then...

Stock seems to be same as before so far......

I had built this a week or so ago and used a low gain Russian germanium transistor (MP20A), and a Russian diode (forget which) and it sounded good, definitely a difference as I swept from transistor to diodes (which is what I assume the diode dial is doing) But today I stopped at the local...

I'm about to start on an Abyss build and I see on its page that there is a pot insulator suggested. It seems to be intended for the dual pot but what's the purpose exactly....something additional to a dust cover or does it essentially do the same thing?

Hi all. Finished up a caesar chorus build, I'm getting sound when bypassed, nothing when engaged. Led's both work, LFO pot adjusts flashing LED (seemingly) as it should. I've reflowed anything that looked suspect and most of the rest. Cleaned 2x with 99% Isopropyl, still nothing. Gave...

Took my time, drilled everything properly….damn jacks have nowhere to live. I’m thinking the reverb module needs to live on the other side of the board. Yea?

Hi All - relatively new to pedal building and have been poking around the forums for help..lots of great info! Haven't found anything on my current dilemma tho. got my huge Tayda order in and I mistakenly ordered 27nf wima caps instead of 2.7nf for my spirit box build. I do have 2.2nf...