Heathkit 43-AM (c. 1963)
Not much is documented about the Heathkit 43-AM. What the record shows comes from Heathkit's own September 1963 advertising. The 43-AM was presented as a new all-transistor AM-FM-FM stereo tuner, sold as one of a "deluxe matched" stereo pair with the AA-21 amplifier. The tuner was credited with 25 transistors and 9 diodes, an automatic stereo indicator with automatic switching to stereo, AFC and AGC, a stereo phase control, and filtered stereo tape recorder outputs. HiFI-Stereo (September 1963, p.115) carried the announcement. A nearly identical ad appeared in Audio (September 1963, p.55).
Those ads are the fullest documentation located so far. No independent review, original price, or production span has surfaced. The companion AA-21 amplifier in the same ad was rated at 70 watts ±1 dB from 13 to 25,000 cycles, with 26 transistors and 10 diodes.
Specs as listed in the period ads:
- Type: all-transistor AM-FM-FM stereo tuner
- Transistors: 25
- Diodes: 9
- Features: automatic stereo indicator/switching, AFC, AGC, stereo phase control, filtered stereo tape recorder outputs
Similar items on eBay
No exact Heathkit 43-AM listings are live right now — these searches show current Heathkit and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.