Alpha with only E105 on back?

Frequently asked question regarding resistors, potentiometers, types, requirements, ratings etc.
Post Reply
User avatar
chicago_mike
Tube Twister
Information
Posts: 1757
Joined: 03 Jul 2008, 04:38
Has thanked: 23 times
Been thanked: 294 times

Post by chicago_mike »

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

105...that would be 1Meg? :scratch:
Skyline FX 2013

User avatar
TV-Set
Breadboard Brother
Information
Posts: 139
Joined: 05 May 2012, 23:42
Completed builds: Silicon FF with tone control, Proco RAT, MXR Dist+, BMP, Phat Pig (custom 6 controls fuzz pedal)
Has thanked: 16 times
Been thanked: 4 times

Post by TV-Set »

chicago_mike wrote:E105 is on the back of some pots on an amp.

105...that would be 1Meg? :scratch:
you could simply use a multimeter to check those pots :thumbsup

Ice-9
Transistor Tuner
Information
Posts: 1088
Joined: 31 Mar 2009, 15:29
my favorite amplifier: Marshall
Completed builds: Far to many to afford the enclosures for them all. :)
Has thanked: 131 times
Been thanked: 351 times
Contact:

Post by Ice-9 »

chicago_mike wrote:E105 is on the back of some pots on an amp.

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

Yup ! I would think so, but wouldn't know about the taper.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?

galmar
Information
Posts: 46
Joined: 08 Mar 2011, 16:27
Has thanked: 2 times
Been thanked: 10 times

Post by galmar »

You can also measure the resistance between legs 1 and 2, for say 5-10 positions of rotation, and then see how it goes. Or just measure it while rotation is 50% - if it measures half the total resistance, it is linear, if it is roughly 10% of the total value it is log. If it is more than 50% it would be reverse log. :)

Post Reply