Dating fender bandmaster amps

Posted by / 11-Jan-2020 09:41

Dating fender bandmaster amps

The reason is that 12AX7 tube has a voltage gain factor = 100, while 12AT7 = 60 and 12AY7 = 45.

It reminds us more of a classic 80w Twin Reverb than a Bandmaster Reverb, and it shared its circuit design with the Pro Reverb and Super Reverb at that time.Yes of course some have the mid knob and bright switch while others don’t.All these ab763 amps with reverb has the gain stage in the reverb recovery circuit which the non-reverb amps don’t have.The reverb amps will start to break up around 4-5 on the volume knob while the non-reverb amps stay clean to approx 6-7.This is caused by the lack of gain stage in the reverb recovery circuit which contributes to tube distortion and compression in the preamp section when the amp is pushed.

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This makes it possible to adapt to small and big stages and gigs just by configuring the speakers.

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