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Heathkit W-3AM

Tube Power Amplifier

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Heathkit W-3AM


The Heathkit model W-3AM is free running with no controls.

It is designed to be used with a signal source having its own controls or with a preamplifier.

The Heathkit model WA-P2 Preamplifier is highly recommended.


Power output: 20W into 8Ω (mono)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 1%

Damping factor: 14

Signal to noise ratio: 85.3dB

Speaker load impedance: 4Ω to 16Ω

Valve complement: 2 x 6SN7GT, 2 x 5881, 1 x 5V4G

Dimensions: 7 x 5.5 x 11 inches

Weight: 29lbs



This website is not affiliated with or sponsored by Heathkit. To purchase W-3AM spares or accessories, please contact the company via their website or visit an authorised retailer.