Does the Blues Custom run "Single-Ended" in Class A mode?

[animal]

Does the Blues Custom run "Single-Ended" in Class A mode? Or is it push-pull in class A? I assume its single ended because in Class AB it uses both tubes at 30W but class A uses only 15W so I assume it only uses one tube but maybe I'm wrong.

[cGil]

Nope. That's actually just a pentode/triode switch. So it's not really class A at all, and triode mode is a whole 'nother thing anyway. Whatever pencil pusher was in charge of labeling that amp doesn't have a clue about amps and probably doesn't even play guitar. If the one labeled volume acts like a volume knob, consider yourself lucky.

 

Gil...

[animal]

This is the response I got from Gibson customer service.

----

Hello,

 

In the Pentode mode (30 watts) the amp is Class AB push/ pull; in the Triode mode (15 watts) the amp is Class A single ended.

Thanks.

 

Best regards,

 

Bob Burns

 

>>>>

 

 

Sent: Wednesday, February 06, 2008 5:47 PM

To: Customer Service

Subject: Epiphone Blues Custom Class A switch

 

 

 

When the Epiphone Blues Custom is operating in Class A mode is it running push-pull or single-ended?

[bluefoxicy]

Gibson specifically told me my guitar uses 250k volume and 500k tone. They sent a diagram that says 300k volume and 500k tone. It uses 500k volume and 500k tone.

[briandcox]

Its definately running in Class A if not mine is going to cook

the output tubes because they are running in a full class A mode.

Thats why it also has the fan in the back because when its running

in class A the tubes are producing more heat.