A70-12 was rated at 70 watts CW output while the 12 meant 12 volts DC for rated output power (mainly mobile use). The designator "A" covered 30 - 70 MHz IIRC; designator "B" covered 70 - 160 MHz and "C" was a low-UHF transistor. "D" was high-UHF, mainly 225 - 480 MHz. Higher-frequency devices ("E" and "F") were almost all just for pulse and grounded base (there were only a few lower-power upper-UHF devices intended for Class A grounded-emitter usage), such as aviation DME transponders operating at 1090 MHz. Devices with higher numbers following the frequency designation indicated the design voltage range, such as "24" or "28", "50", etc. There used to be scads of CTC catalogs around that included much valuable design information. This was during the 1967 to 1978 era or thereabouts (although after CTC was bought by somebody, I forget who, might have been M/A COM, the same part number system was kept for a short time, IIRC) . You might run across a CTC catalog at the TRW swap meet, even today. I still have a few old NOS CTC transistors but I was never interested in any of the A series, sorry. The Lunar PN "6M10-100P" meant it covered 6 meters, and was rated at 10 watts input for 100 watts output. This included combining power loss, which was a bit higher back in those days than ferrites of today. I've heard that Lunar equipment was considered several steps above KLM (and Henry Radio's TPL) solid-state amplifiers at that time, both of whom had poor reputations for IMD performance among the West Coast V/UHF hams. Klitzing was considered about equivalent to Lunar. Lunar was originally founded by WB6NMT.
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Topic: Anybody Have Information regarding A Lunar 6M10-100P (Read 88 times)