ampage Tube Amps / Music Electronics	For current discussions, please visit Music Electronics Forum.

ampage archive

Vintage threads from the first ten years

previous: Paul Bamberg Gentlemen;I have the above ... -- 1089118404

Re: 1959 Fender Bassman 5F6-A Power output??'s

7/6/2004 3:56 PM
SpeedRacer	Re: 1959 Fender Bassman 5F6-A Power output??'s 35mA on the outputs is where I usually bias them. Power output sounds bad.. but then again the lack of headroom and easy distortion might be something the player loves about the amp.. Should really be closer to 40W, I usually test at 400Hz. You'll have to tweak the eq to get the max clean signal through. Sounds like the rectifier tube is a beater.. is it a 5AR4/GZ34? The caps really ought to get done if they've never been done if the amp gigs, but again if the guy loves it as is, just explain these things and be prepared to let it go. Last thing you want to do is give him back a 'tight new amp'.. IMHO. I'd also doublecheck the OT part# and make sure it s the right one. jm2c

7/6/2004 3:56 PM

SpeedRacer

Re: 1959 Fender Bassman 5F6-A Power output??'s

35mA on the outputs is where I usually bias them.
Power output sounds bad.. but then again the lack of headroom and easy distortion might be something the player loves about the amp.. Should really be closer to 40W, I usually test at 400Hz. You'll have to tweak the eq to get the max clean signal through.
Sounds like the rectifier tube is a beater.. is it a 5AR4/GZ34? The caps really ought to get done if they've never been done if the amp gigs, but again if the guy loves it as is, just explain these things and be prepared to let it go. Last thing you want to do is give him back a 'tight new amp'.. IMHO.

I'd also doublecheck the OT part# and make sure it s the right one.

jm2c

Replies:

Wild Bill What Speed said...A... -- 7/6/2004 5:44 PM