Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Oddvar on October 30, 2016, 06:37:16 am

Title: OT for Mrshall JCM800 build
Post by: Oddvar on October 30, 2016, 06:37:16 am

Hi.  I was wondering what OT I could use in a Marshall JCM800 build.  I see on some comments that the actual output on the earlier models was close to 36w, not 50w for some reason.  I have a Weber OT that is rated 40w, could I use that?  Or any other suggsetions? 

Title: Re: OT for Mrshall JCM800 build
Post by: sluckey on October 30, 2016, 06:46:10 am

Which one? JCM-800 is a series of amps, not a single amp. Hoffman sells a 50 watt and a 100 watt Marshall style output transformer. Click the link at the bottom of this page.

Title: Re: OT for Mrshall JCM800 build
Post by: Oddvar on October 30, 2016, 06:49:50 am

This one...

Title: Re: OT for Mrshall JCM800 build
Post by: sluckey on October 30, 2016, 07:04:46 am

Hoffman's 50W transformer would be perfect for that 2204.

Title: Re: OT for Mrshall JCM800 build
Post by: EL34 on November 01, 2016, 07:19:26 am

Thanks Steve,
Use the Heyboer OT on this page
http://hoffmanamps.com/MyStore/catalog/Transformers.htm (http://hoffmanamps.com/MyStore/catalog/Transformers.htm)