Vintage Tube Amp

Harman Kardon Allegro A10 Tube Amp Audio Amplifier Mono. The Harman Kardon Model A-10 Allegro is an AC operated 5 Tube 3 Channel Audio Amplifier. Untested, assume not working. Need additional tubes to run it. Power type and voltage. Alternating Current supply (AC) / 105 – 125 Volt. This model requires external speaker(s). 10 W 16 W max. 12 x 4 x 6 inch / 305 x 102 x 152 mm. Thanks for considering?? Be sure to check out our other vintage electronics for sale!

Actual 1957 Tube amplifier photographed. 1957 top of the line.

Harman Kardon Allegro A10 Tube Amp Audio Amplifier Mono. The Harman Kardon Model A-10 Allegro is an AC operated 5 Tube 3 Channel Audio Amplifier. Untested, assume not working. Need additional tubes to run it. Power type and voltage. Alternating Current supply (AC) / 105 – 125 Volt. This model requires external speaker(s). 10 W 16 W max. 12 x 4 x 6 inch / 305 x 102 x 152 mm. Thanks for considering?? Be sure to check out our other vintage electronics for sale!

Turns on and sounds good to me.

Actual 1957 Tube amplifier photographed. 1957 top of the line. Open to fair offers.

Harman Kardon Allegro A10 Tube Amp Audio Amplifier Mono. The Harman Kardon Model A-10 Allegro is an AC operated 5 Tube 3 Channel Audio Amplifier. Untested, assume not working. Need additional tubes to run it. Power type and voltage. Alternating Current supply (AC) / 105 – 125 Volt. This model requires external speaker(s). 10 W 16 W max. 12 x 4 x 6 inch / 305 x 102 x 152 mm. Thanks for considering?? Be sure to check out our other vintage electronics for sale!

Untested as found at a local estate, offered as is for parts or restoration. Tubes are visible inside the unit. Unit advises not to open, we are offering it as is.

Harman Kardon Allegro A10 Tube Amp Audio Amplifier Mono. The Harman Kardon Model A-10 Allegro is an AC operated 5 Tube 3 Channel Audio Amplifier. Untested, assume not working. Need additional tubes to run it. Power type and voltage. Alternating Current supply (AC) / 105 – 125 Volt. This model requires external speaker(s). 10 W 16 W max. 12 x 4 x 6 inch / 305 x 102 x 152 mm. Thanks for considering?? Be sure to check out our other vintage electronics for sale!

Harman Kardon Allegro A10 Tube Amp Audio Amplifier Mono. The Harman Kardon Model A-10 Allegro is an AC operated 5 Tube 3 Channel Audio Amplifier. Untested, assume not working. Need additional tubes to run it. Power type and voltage. Alternating Current supply (AC) / 105 – 125 Volt. This model requires external speaker(s). 10 W 16 W max. 12 x 4 x 6 inch / 305 x 102 x 152 mm. Thanks for considering &####128578. Be sure to check out our other vintage electronics for sale!