08-03-2011, 09:52 PM
I have a tempo ct 1002 rf amp from 1971 i got on ebay as a fixer-uper.
The driver transistor is blown and the top is missing so i do not know what the p/n was.
Does anybody have any info on this amp?
My memory is vague, but as I recall Tempo had two or three amps in that series, a 144MHz, a 220MHz, and a 432 MHz model. It's possible they used the same transistor in the 220 amp. Maybe generalizing your keyword search for "Tempo" and "amplifier" will bear fruit. It may also be a whole lot easier to search for a similar replacement transistor, ideally with the same package type, to drop in. You can probably find drive requirements of the finals online, and determine driver voltages with a multimeter and by physical examination of the board.
If you've not any documentation, I suggest shifting your efforts to getting a schematic, with or without a complete manual. BAMA is a good place to start.
GL and 73,
From searching the web, it seems my memory was in fact whacko. I doubt there was a 432MHz model, and I'm not sure about 220. Sorry for the bad info.