Archive category
Harman Kardon
The archive's Harman Kardon pages come mostly from one careful restorer, and they read like a short course in reviving 1950s and 1960s stereo integrated amplifiers. The A224 of 1959, an EL84 design, is documented with its full control list and before-and-after photographs. The A50K and A30K are the kit versions of the A500 and A300; their listings count every capacitor replaced and explain how to set bias balance safely.
The odd one out is a Citation V from Harman Kardon's premium line, of which little more than a condition note survives.
The original site filed some of these under the misspelling "Harmon Kardon"; that address now leads here. For the company's founding by Sidney Harman and Bernard Kardon, see the Harman Kardon maker page.
4 entries
Harman Kardon
Harman Kardon A224 Stereo Tube Amplifier
The 1959 EL84 integrated, restored with before-and-after photographs.
Harman Kardon
Harman Kardon A50K / A500 Integrated Tube Amplifier
The kit A500, restored with 24 new capacitors and external bias test jacks.
Harman Kardon
Harman Kardon A30K / A300 Integrated Tube Amplifier
The kit A300 with 1962 Sylvania 7408s, a rugged cousin of the 6V6.
Harman Kardon
Harman Kardon Citation V Stereo Tube Amplifier
A Citation V, with background on Harman Kardon's top tube line.