Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Lizard King on June 11, 2010, 08:54:54 am

Title: Carvin TS100 transfomer question
Post by: Lizard King on June 11, 2010, 08:54:54 am
I have a blowed up TS100 that I was going to rip the guts out of and replace with twin Bassman power amp circuits.  Looking at the Carvin power transformer it appears to have 6.3v, 350v, and 8v outputs.  Could the 8v outputs be used/stepped down to drive a tube rectifier or should I just stick with solid state?  I don't want to buy another transformer and try to find a spot for it inside the already cramped case.

Thanks!
Title: Re: Carvin TS100 transfomer question
Post by: HotBluePlates on June 11, 2010, 10:35:45 am
The 8v winding was probably rectified and used to feed relays or IC circuitry. It may not have enough current on tap to power a rectifier.

I'm guessing this was a 100w amp. That much B+ power is probably best rectified with solid-state. The old era tube amps might have used a pair of tube rectifiers for 80w. Either way, that means the voltage drop and potential sag contributed by the rectifiers was quite small. I'm thinking you don't lose much if anything by using silicon.
Title: Re: Carvin TS100 transfomer question
Post by: Lizard King on June 11, 2010, 10:45:40 am
Makes sense to me....thanks!!!