This 1965 Band Master head is in perfect working order, and its tone is pristine, due to upgrades and restoration work done on it in 2022 by the renown amp tech Blackie Pagano - blackiepagano.com. In 2023 Blackie also installed a half-power toggle on the back that cuts the volume level down for stage flexibility and yet keeps the tone very usable. He also installed a Negative Feedback pot on the back that allows you to dial in some sweetness and earlier breakup if desired - with the dial on “1” the circuit is out of the loop. There are many other upgrades and all of these are documented on invoices I included on the photos.

Here is the Google description of this amplifier:

The 1965 Fender Bandmaster AB763 is a vintage 40-watt, two-channel tube amplifier from Fender’s pre-CBS era, typically valued between $1,200 and $1,500 depending on condition.

• Power Output: 40 watts (pushing closer to 45–47W at clipping) into a 4-ohm load.
• Circuit: AB763, featuring a solid-state diode rectifier that delivers tight low-end response and massive clean headroom.
• Channels: Two independent channels—Normal and Vibrato—each with high and low inputs, volume, treble, and bass controls, plus Fender's signature bright switch on/off capability. The Vibrato channel includes speed and intensity controls.
• Design: Housed in a black-panel (blackface) Tolex headshell, originally paired with a matching 2x12 speaker cabinet.

Tone and Performance

• Clean Headroom: Users on Equipboard agree that the solid-state rectifier prevents traditional tube sag, making it an exceptional, pristine pedal platform with sparkling highs and a scooped mid-range.
• Jumpering Channels: A favored trick among players is jumpering the Normal and Vibrato channels together with a short patch cable to blend the distinct voicings.
• Community Opinions: According to discussions in communities like the Fender Amplifiers Facebook Group, opinions are mixed on overall volume output; some users find it to be a thunderous 40-watter, while others note it feels less punchy than smaller reverb-equipped combos due to the lack of an internal reverb circuit.