Bottlehead Forum

Bottlehead Kits => S.E.X. Kit => Topic started by: adamct on May 20, 2013, 06:19:09 AM

Title: Will a Valab stepped attenuator (ladder-type) fit a S.E.X.?
Post by: adamct on May 20, 2013, 06:19:09 AM

Has anyone tried fitting a Valab stepped attenuator (ladder-type) in a S.E.X. (preferably one with with C4S and impedance switches)? Any issues (other than possibly widening the hole in the chassis board)?

Best regards,
Adam

Title: Re: Will a Valab stepped attenuator (ladder-type) fit a S.E.X.?
Post by: FraGGleR on May 20, 2013, 06:25:25 AM

Haven't tried it for fit, but I have one of those steppers.  Once I remove the old pot, I will let you know how well it fits.  Just eyeballing it, it will be a very tight fit.  Might run into issues with it hitting the wood.

Title: Re: Will a Valab stepped attenuator (ladder-type) fit a S.E.X.?
Post by: FraGGleR on May 21, 2013, 09:02:54 AM

For reference, the Valab ladder style attenuator will fit, but will touch the wood.  The hole for the stabilization peg (or whatever it should be called) needs to be moved a couple mm away from the shaft to fit properly.  Care with placement of components, especially the 22uF capacitors will be needed as things get quite crowded.

Title: Re: Will a Valab stepped attenuator (ladder-type) fit a S.E.X.?
Post by: Grainger49 on May 21, 2013, 02:52:04 PM

You can use a rotary rasp to relieve the wood on the base where it would be touching.  Just be sure not to relieve it at the top.