Tuesday, March 1, 2016

Elmaformers

It is such a task for people (including myself) to solder the $400 autoformers to a switch so I am doing a circuit board that wires them directly to an elma switch.


While not being the smallest of finished items, it fits together nicely and can stack for as many decks as needed which makes true balanced operation a breeze.


This is a simple two deck "proof of concept" on proto boards with a 24 position switch that can have any desired taper you choose.  They will wire up lust like a traditional pot with In, Out and Ground connections for each deck.  I am so happy with the results I am planning another version on the 47 position switch that can have 1dB steps.


5 comments:

  1. Very nice, could these work on the 28 pin bobbin as well?

    ReplyDelete
  2. Hey Nick... look closely they are using a slightly modified 28 pin version.

    ReplyDelete
  3. Ya I saw that, mine have pins on two sides.

    ReplyDelete

Blog Archive