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Heathkit AA-100

Stereo Amplifier (1960)

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Heathkit AA-100

Specifications

Power output: 25 watts per channel

Frequency response: 30Hz to 15kHz

Total harmonic distortion: 0.5%

Damping factor: 15

Input sensitivity: 1.5mV (MM), 200mV (line)

Signal to noise ratio: 55dB (MM), 70dB (line)

Output: 500mV (line)

Speaker load impedance: 4Ω to 16Ω

Valve complement: 2 x EF86, 4 x 12AX7, 2 x 7199, 4 x 7591, 1 x GZ34

Dimensions: 15.25 x 5 x 13.5 inches

Weight: 28.75lbs

Year: 1960

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Comments

re: AA-100

Very rich sounding amplifier. Found one on Ebay, but needed lots of TLC. New caps, new tubes and lots of cleaning. Major falw: Output tubes get extremely hot, baking the board, causing traces to let go. Best to run without the cover. Let the heat flow up and not build up inside. Not a bad amp at all for the analog listener.

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