Lafayette KT-600 (1959–?)
Little is documented about the Lafayette KT-600 stereo preamplifier kit. What survives comes from a handful of period magazine references and advertising. No service manuals or detailed schematics have turned up.
The KT-600 appears to have been a stereo control center sold as a do-it-yourself kit. Audio magazine (May 1959, p.42) noted that the construction manual included addenda sheets correcting errors in the original instructions. Early stereo kits had plenty of that. By January 1961, Lafayette had introduced the KT-600A, a revised version advertised in Audio (January 1961, p.66) at $79.50 in kit form or $134.50 fully wired. The ad claimed a frequency response of “540,000 cps ±1 db”. That is likely a typo or an optimistic stretch of the spec, since 540 kHz would be extraordinary for the era. The ad also touted a precise null-balancing system. No design details, circuit topology or production history have surfaced beyond these fragments.
- Brand: Lafayette Radio
- Model: KT-600 (later KT-600A)
- Type: Stereo preamplifier / control center (kit)
- Kit price (1961): $79.50
- Wired price (1961): $134.50
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