I just got quite a lot of them. 1/8 watt small sized metal-film 1% resistors. Originally I ordred 1/4 watt ones, but by mistake they got me a box with a few thousand 1/8 watt resistors of nearly all values. They are sized as a typical 1n4148 diod, too small. So I have to know if I can use them too, or I should send them back and replace a some else type. My favorite area is boosters, overdrives, distortions, and fuzzes.
i wonder if the taper of the drive pot might need to be linear instead...
I found that a reverse audio taper works very well.
Or if you are really cheap, and don't mind messing with yourself a little, just wire the audio taper pot backwards. I do that on most of the things i build that call for RA pots. After a while of using the pedal that way i don't even think about the fact that it is backwards.
Hi, while building a CB clone, i needed to substitute an audio log pot for a reverse log pot, there was an instruction to wire the pot CCW to emulate the reverse log pot behaviour.
first of all is this true?
2nd, how do I go about doing this? I tried this as swapping the connections between pins 1 and 3, this only resulted in the knob sweeping backwards ie, for tone control it goes from treble to bass instead of the other way around.
as it is using the audio pot, only the last 25% of the...
Hey all,
i searched for this, but oddly enough, this hasn't come up in this case...
I'm building a Fuzz Face clone, from the vero of the 1969 Boutique version. Anyway, the pots in it are 500k value pots, which bitsbox dont stock. Similarly, the trimmer is a 10k, which bitsbox also don't have.
Could i use a 470k Pot (its for Volume) instead, and a 10k POT instead of the trimmer?
thanks
tm
Question - So these little nibs that are made to sit in a tiny hole in the enclosure, next to the hole that the shaft goes through...What do you prefer do with them? Do you bother drilling a tiny hole (a pain to get just right) or do you just cut them off?
Hi guys, I just recently picked up DIY pedal building, Im confused as to what the differences are with AxxxK, BxxxK, or CxxxK pots are what are does the A, B, or C mean? thanks much and hold the flames please :D
I would like to replace the volume control Audio/log taper at the very end of a circuit with a fixed resistor. I have a preferred setting for the potentiometer in mind. I want to measure the resistance at this particular knob setting and replace it with a fixed resister (because I need to reduce the number of pots on a self-designed fuzz circuit, and this one is redundant.)
I just bought a multimeter, but I don't know how to use it to do this. Can anyone help? Thanks.
I'm building a pedal out of old parts I have lying around. It uses a 5K lin pot, but I don't have one. I started thinking and, if I use a 10K lin pot and put a 10k resistor in parallel with it, I'd get a 5K pot right? Rev log if I'm not mistaken?
I noticed that in the Xotic RC Booster schematics there is a 470R Carbon Composite on series with the output. I am intrigued by why a small resistor in that place is carbon composite and I would like to ask your opinion about it.
I understand the psychological (aka mojo) factor but just for the sake of it I calculated the contribution of this resistor to the signal.
Considering the output impedance of the emitter follower close to zero, a relatively heavy load of 100k, the resistor create of...
Hello, My name is Travis. I've been reading here for about a month now, and this is my first post.
I am a relatively new builder with about 15 builds or so. I really enjoy doing this, as it has been a very fun learning experience.
My question is about Pots that you guys use. I've just been ordering from Pedal Parts Plus, so I am not sure what brand they are. I have read alot of negative remarks about Alpha pots, and I guess I'm just wondering what everyone is using, and where you get them...
Is it possible to say get a 100k Lin pot, do some electric voodoo, and end up with a 100k Log pot??
I did a googley search but most stuff is amp related, but I found something that said a resistor of about 20% value of the pot across lugs 1 and the wiper would create a Log pot... would this work for pedals? :scratch:
Hi there, I've built up a couple of pedals with satisfaction but I'm still trying to get my head around the subtle differences that make great verses good sound. When selecting resistors do people generally use 1/4w size? On one of the first pedals I made it just said, all resistors 1/4w so I've used that size by default ever since but since there are 1/2w appearing on some old pedal projects I was wondering if some experienced members could demystify the difference between 1/4w and 1/2w in...
Hi guys,
Here's a simple question but I'm asking because I don't know the answer :oops:
Looking at many (all?) of the layouts on this site I see the wires going to the pot tags labelled 1 2 3.
I'm assuming that 1 is the tag on the left if looking at the pot from above, or the furthest right if looking from underneath.
Am I right? (I think I can figure 2 nd 3 out from there 8) )
The FAQ section has listed 50v electrolic resistors. Noticed at Mouser that the 50v are about $.21 and the 25v are about $.06 each. Do I need more than a 25v rating for a 9v stompbox?
Is there some other advantage to more volts? They are a little bigger it looks like.
Kind of clueless...
Sometime ago i built Fuzz Face (with Late 60's option) Kit from General Guitar Gadgets.
Now, i want to step little further and build another one with components selected by me.
I want to try Carbon Composition resistors and maybe Mallory 150 cap (if it makes sense?)
So my question is where to put carbon comp(s) and where metal films to keep hiss level down?
Schematic
(yes, i've read R.G. Keen's Using the Carbon Comp Resistor for Magic Mojo but i can't figure out
the points he...
Hi
I need to clear out this Q. Regarding pots and whether they are Lin or Log.
From Banzai site:
Potentiometer codes
USA and Asia:
A = logarithmic (also called 'positive logarithmic', 'audio', 'log' or '+ log')
B = linear ('lin')
C = negative logarithmic (also called 'reverse log', 'rev log', 'reverse audio', or '- log')
Europe:
A = linear (lin)
B = logarithmic (also called 'positive logarithmic', 'audio', 'log' or '+ log')
Y = negative logarithmic (also called 'reverse log', 'rev...
... and none of the bags have the values on them, I've spent the last 2 hours pulling them out, reading the values and then checking them with a multimeter because the values could in some cases be 2 completely different things. I could really do with some drawers for these suckers :?
I'm no noob when it comes to electronics; been building and repairing stuff, sometimes professionally, since the '70s. But I just came across a schematic with resistor values I don't quite understand. The schematic has the usual k and m marks, ie: 47k and 1m. But there's one that's marked 120E. Could that be ohms? (in what language?) It's definitely a resistor because it's labeled 'R6' similar to the others in the circuit.
Like I said, I've been around, but this is a new one on me. I'd...
The title says it all..I have this Maestro Boomerang Wah clone that requires a 25k pot, at the moment I'm using a 100k hot potz that I had in a dismantled Cry Baby wired with a 33k resistor across...the probelm is that it has some dead spots so it needs to be replaced..can I use a regoular linear pot? or wah pots have some different taper?
I've seen these phlier pots that have 4cm long shaft and come in a lot of values...
Hey guys. I've been looking at sourcing some carbon comp resistors, specifically off eBay. I was wondering if there are any sonic drawbacks using resistors with higher power ratings than your circuit calls for (other than size, obviously)?
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