How to make a 2M7 resistor

[innerlight]

Hey all!
I’m working on a Pendulum Tremolo, and I don’t have the required 2M7 resistors.
Can someone tell me how I would make one out of others in serial or parallel?? I have 2M ones and various others, a pretty good selection.
Please help!

 

[Betty Wont]

You want to take two values that equal 2.7m and put them in series. for example, if you have a 2m and a 680k, they would get you close enough. solder them to the board in a tee-pee shape.

 

[Dan M]

In series, you add them to get the total.

Do you have a 680k? With a 2M would make 2.68M

 

[hamerfan]

3M should be close enough?

Or 1M parallel to 2M both in series with a 2M

 

[Big Monk]

Series:

1.) 2.2M + 470k
2.) 2M + 680k
3.) 1M + 1.7M
4.) etc.

Parallel will probably be more difficult for you because things get smaller in parallel so you'd need to start with resistors bigger than 2.7M

 

[Dan M]

Betty types faster than me

 

[innerlight]

I really appreciate this! Thank you all

 

[Dirty_Boogie]

This Forum is a fantastic resource for a fantastic hobby, but I always like to suggest that when building these boards, don't just view it as an exercise in "painting by numbers". Need a resistor substitute? Look for a parallel/series calculator, and see what the formula is while you're there:

Conversion Calculator Parallel and Series Resistor | DigiKey

Calculate the total series and parallel resistance of a circuit using DigiKey's Parallel and Series Resistor calculator.

www.digikey.com

A lot of the time, I still don't fully understand many parts of these circuits, but when you do start to understand things, it makes modding (improving?) so rewarding.

 

[innerlight]

This Forum is a fantastic resource for a fantastic hobby, but I always like to suggest that when building these boards, don't just view it as an exercise in "painting by numbers". Need a resistor substitute? Look for a parallel/series calculator, and see what the formula is while you're there:

Conversion Calculator Parallel and Series Resistor | DigiKey

Calculate the total series and parallel resistance of a circuit using DigiKey's Parallel and Series Resistor calculator.

www.digikey.com

A lot of the time, I still don't fully understand many parts of these circuits, but when you do start to understand things, it makes modding (improving?) so rewarding.

Completely agree! In the past when I had to do this with lower values I did it with ease but the M thing confused me!
Anyway, another successful build of the Pendulum tremolo. Big recommend to you all

 

[Feral Feline]

I use Digikey for its colour-coding resistor values, but I prefer this online calc for parallel resistors and capacitors in series:

PARALLEL RESISTOR CALCULATOR

So depending on what values you have on hand...

Paralleling:
6M8 & 4M3 = 2M63
8M2 & 3M9 = 2M643
10M & 3M6 = 2M647
5M6 & 5M1 = 2M669
7M5 & 4M3 = 2M73
6M8 & 4M7 = 2M779
6M2 & 5M1 = 2M798
10M & 3M9 = 2M8058
5M6 & 5M6 = 2M8
7M5 & 4M7 = 2M889
6M8 & 5M1 = 2M9





If you don't have those large M-values to play with, but you've got a 680k — as others have suggested that'd be the easiest closest route, series 2M+680k.