Pilotone AA-906 Tube Mono Power Amplifier, KT88/6550 Based, Works Super Rare

For sale is a vintage, big and heavy, super-rare. Pilotone AA-906 Tube Mono Power Amplifier, KT88/6550 Based. All tubes are vintage and all included except the two Genalex KT88 which I borrowed for testing only (they are listed separately). The potted transformers are big and the amp is really heavy. I provided some pictures to show the circuitry under the chassis. It appeared to be all original, no mods. No overheating or burning signs.

I used a variac to ramp to 80 volts. The amp worked fine and produced music fine.

Since this amp is very old, it may need services before daily use. At least, the new owner should have some professional to go over it before plugging in 120V. Physical condition is fair for the age, with wear, discoloration, and scratches as shown. Also the bottom plate does not look like original. More or less just a simple replacement to avoid touching the high voltage. The power cord is replaced with 3-prot plug. The amp is very heavy.

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The seller is "timekinetics" and is located in this country: US. This item can be shipped worldwide.

Brand: Pilotone
Type: Power Amplifier
Model: AA-906