Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Tiny_Daddy on October 28, 2012, 08:35:56 am

Title: Gibson Thor output impedance
Post by: Tiny_Daddy on October 28, 2012, 08:35:56 am

I have a gibson Thor in for re-build but the speakers are missing. Anyone know the impedance of the original speakers?

Title: Re: Gibson Thor output impedance
Post by: HotBluePlates on October 28, 2012, 09:24:40 am

Does your amp look like this (http://johnkvintageguitars.homestead.com/Thor.html)? If so, pair of 8Ω 10" speakers.

Title: Re: Gibson Thor output impedance
Post by: Tiny_Daddy on October 28, 2012, 11:22:51 am

Yeah, that's it, Thanks. So the output Z = 16 ohms.

Title: Re: Gibson Thor output impedance
Post by: HotBluePlates on October 28, 2012, 12:00:57 pm

That would be my guess based on the pics on that webpage. Looks like the speakers are wired in series.