Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: sdp1234 on September 14, 2014, 07:42:02 am

Title: TOS Transformers
Post by: sdp1234 on September 14, 2014, 07:42:02 am

I have several 150ma PT's to use for this project.  I believe they will work fine.  I'm more concerned with the OT.  Would this OT work?

Title: Re: TOS Transformers
Post by: tubenit on September 14, 2014, 11:37:01 am

I am not sure that would be the best OT for 5881's  but would be OK with 6V6's.  I've built a 6V6/6K6 amp with that OT before.

I used a Hammond 30w OT for the TOS and it was HUGE and similar size to a Marshall JCM900 50w OT.

So, maybe look at a 40w OT if you're using 5881's instead of the 20w OT.

With respect, Tubenit

Title: Re: TOS Transformers
Post by: sdp1234 on September 14, 2014, 07:52:24 pm

Thanks.  Makes sense.  I'll get a 40 watt ot