Can I use such resistors in pedals?
Or at least it is 1/4 Watt

Hi and thanks in advance. I ran into a symbol I don't recognize and would like some help. It is in a resistor position but is labeled 100E What type of R is this?

Hey all,
I'm wanting to make a cable that converts my volume pedal to an expression pedal. I tried with an insert cable straight in but it was a bit screwy. So I need to create a cable to convert.

the pot in the pedal is 250k audio taper. As I understand a resistor across the Center and outside lug should get me close. It's a just a matter of which value? I've seen plenty of calculators for Linear to Log, but none the other way.

edit: I'm planning to wire in the resistor into the TRS jack,...

Im using some Bourns metal film resistor networks in my prototypes, they are nice and tidy on the board for summing duties in an audio mixer, they are rated for 200mw

at the moment Im doing a simple mixer, 4 stereo channels so 2 resistor networks, 4 elements each with pin no 5 as the sum. I presume there is no impact to the audio quality instead of using individual resistors?

Ive also started using metal film resitors that are tiny, I had ordered them not knowing they were so small but it...

first time using metal film resistors is there a size different between carbon 1/4 watt and metal metal film 1/4 watt i justt received my order from amazon and they look somewhat small than 1/4 watt carbons

Ok, so, this has been bothering me for a while now. I have recently become interested in amp circuits, and higher voltage pedal schematics (18v instead of 9v), and I noticed a lot of schematics use a low ohm resistor on the supply (as part of a supply filter and/or to prevent shorts from frying something), mostly 10R or 100R. For simplicity, I will use the 10R for an example. Let's say our circuit is 100R, with a 10R supply resistor, at 18v. Ok, so my thinking is that the power loss in the 10R...

Hi folks,

I'm looking to make a log pot to replace the course cut-off pot in this schematic:

The pot is acting as a series variable resistor. I get from GEOFEX's 'Secret Life of a Pot' article that I can make a log pot from a linear pot IF I'm using it as a voltage divider and not a series variable resistor. I believe him.

What I'm wondering is what would happen if I used the voltage divider arrangement, would the pot behave as I want or do some other electronic principles kick in to...

in general if you use the wrong value pot in a circuit but not by a huge amount (say a 100k or 25k instead of the required 50k)
what effect would that cause generally?

I know in some circuits a common mod is to increase the size of the gain/volume pot to get more gain/volume

is there a way to limit this in order to avoid pedals with too huge a sweep that are hard to find a sweet spot with.

I ask because I'm thinking of whipping up a pedal for my bass player but don't QUITE have the right pot...

E105 is on the back of some pots on an amp.

105...that would be 1Meg? :scratch:

Hi there,

I am trying to assemble the Fuzz unit in Penfold's Music Project book.
It requires metal film resistors, all 0.6W, but I only have carbon 0.25W.
After reading here and there in the forum, I understand that the material of the resistors will affect the signal introducing noises.

But what about the power rating? Am I going to fry the carbon resistors?

If I understand correctly, power rating is the maximal limit for heath dissipation, that is how much power the resistor can convert...

what are the most common size resistors in the pedals in this from 1/2 or 1/4 or 1/8 watt or in wamplers pedals

i cant find a logarithmic potentiometer. can i use linear instead?

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...

It might be that I am extremely new to this but these resistors aren't making sense to me. I am trying to build the weber cattle drive hitch was not a good choice as a first kit. Not newbie friendly. Could I get some help with the values of the resistors in the attachment? I very much appreciate the help.

- Jared Evans

image.jpg

I'm sure this is a stupid question.. In a few of the layouts I'm planning to tackle, I'll see a resistor value of say, 100 R , or on the Metal Simplex 10 kr

On that layouts I also see everything labeled normally like 10k, 100k, etc. usual suspects..

Is R another label for OHM as in 820ohm resistor

So when ordering these resistors I've been having trouble.. Often the search will lead me to 100 ohm resistors.. The guys at Altex down the street from me give me this look like what the fuck are...

Hi, silly question (again!) I am doing an SHO project and me being me, I ordered a wrong part. Anyhow, the part I am after is a 5k reverse log which I can buy from bitsbox. The item comes with solder tags and is 'for panel mount only.' I am using veroboard and I don't know if it is possible to somehow attach cables to the tags? Thanks in advance!

Hey Guys!

I was replacing the footswitches on my DL4. While I was disconnecting one of the mountain switches my pliers slipped and I nicked the R29 resistor. I got everything wired up, but now that switch is the only one that doesn't work. Could the damage to the resistor be the problem? I've quadruple checked all of the solder joints and everything looks good.

Here's a photo:

Hi all,

This is my first time here and I am a total beginner when it comes to electronics. I am building a true bypass looper with 6 loops & 1 master bypass switch following this schematic: However, the schematic is only for 4 loops & 1 master bypass. My question is, beside adding more switches and jacks, what do I have to do to the 4.7K resistors value?

Also, in the above diagram will electric current flow from the red cable from the DC jack going through the series of LEDs (positive legs)...

Hullo.
I've been putting together my own od circuit when I noticed something a bit odd: when I added the master pot (I tried 22K, 100K, 500K and 1M) it actually acts as a volume pot of a tube amp (meaning that u have to crank it to get overdrive). Well, I know this is a common thing and in most analog fxs I used or built it is so. But in this particular case the impact on the sound is huge! I get little to no overdrive with the master at low levels even when the circuit's gain is at max. Then,...

I know that most pedals use around 100k for the volume pot, but ive seen as low as 10k and as high as 1M. what does changing this value do?

Hey Guys,

I have build about 3 pedals, and i am taking this up seriously now to help others who do not want to spend a lot of cash on branded pedals......
I keep ordering resistors based on the project i am going to or working on at the moment. I would want to cut that and would like to order resistors and caps in bulk, that saves me some cash..

So need your help here in understanding the various common values of capacitors and resistors that are used in effects pedals.....So i could have...

One simple idea to use 3:00 am when your brain :shock: refuses to colaborate... and your childs will love it!! :lol:

I see how some classic designs use different approaches to bias his opamp and 10K, 47K, 100K or 1M are, more or less, the most used values. Since the vast mayority of VD's are two equal resistors, all of them give us 1/2 of V+ (usually 4.5v)
At least, I understand that part. :oops:
My question is: those different resistor values are related to each opamp specs or the companies just use what they have on hand?
How about DC, AC (a blank page for me) and noise?

Hullo!
I'd like to make a mix control for my next dirt box, which is the balance between the dry signal and the fx level (and it's not the same as 'gain').
How do I make such a thing?