Quote:
Originally Posted by peverett
As mentioned, Zenith did make some quality sets at time(still no AFC though). However some of the lower cost Zenith sets used the 12BE6 tube for both the AM and FM converter(unlike the higher cost sets using the 12AT7). In my experience, these cheaper sets seem to have more drift issues.
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Possibly at that time, Zenith considered AFC an unnecessary "crutch" to obtain stability. Good design involving the proper temperature coefficient capacitors, could result in a stable FM receiver, without introducing distortion producing AFC circuitry. The best component tuners of the period did not use AFC.
jr
PS: Some Decent Pix of a Marantz 10B on this listing.... no AFC switch!
http://cgi.ebay.com/Vintage-Marantz-...item5195a06770
Not affiliated,
jr