Quote:
Originally Posted by wa2ise
I don't think Zenith made solid state table radios until around 1967 or so. A sticking point in soild state line operated sets was either you'd need a high voltage audio output stage for a hot chassis design, or use a power transformer. Either was too expensive compared to tube circuits at the time before about 1966.
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There is a Zenith "all transistor" AC AM/FM radio covered in Sams #841-10 (10/66). The model is N890A/B and the chassis # is 8NT21. The chassis appears to be all steel (no PC boards). The radio is a hot chassis design. I wonder if this was Zenith's first AC only transistor radio?
08-25-2007, 06:30 PM
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