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In Reply to: RE: Late 1970s production posted by Thermionic27609 on July 02, 2009 at 22:17:18
Perhaps some RF/Microwave/Instrumentation gear using tubes was still being made in late 1970s by HP but not totally sure. Since tube based instruments like scopes, signal generators etc. were in use through 1980s in labs across the country, there was a lot of service components in the distribution channel.
Tubes were still being made until mid-1980s by companies like Tungsram, RFT, BEL India etc.
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