Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: dwp on May 29, 2010, 12:25:56 pm

Title: trem roach orientation please
Post by: dwp on May 29, 2010, 12:25:56 pm

Hello All, I did try search before asking this same question which I know was answered years ago, The copper leads on the trem roach go to the plate/voltage? silver to the pot and ground? Or am I backwards once again?
Thanks in advance, dwp

Title: Re: trem roach orientation please
Post by: Iannone on June 04, 2010, 10:38:30 am

The optical connections on the roach (which are non-polarized) are identified by the silver dot and the somewhat longer leads.  These are connected in shunt between the plate of the 12AX7 and ground.

Title: Re: trem roach orientation please
Post by: dwp on June 04, 2010, 12:02:32 pm

Thanks Iannone, so silver dot there is none, nor continuity or polarity on either, but I think the silver leads are the same as silver dot you are referring to, they were longer, this is and old roach I had installed and removed and was pondering re-installing, Have since moved on away from trem again.
Thanks again, dwp