So make your own tech data for the amplifier. Nothing rocket science about working with Poly-fets. I've built or repaired a fair number of NMR RF Amplifiers using them and there's nothing really super scary about them. As long as you don't go crazy with abuse they should be as hardy as many common fet designs.
Look on the web for poly fet amplifiers after first going to the Polyfet Home Page. http://www.polyfet.com/ Some of those Milcom - aka Cresend amplifiers use more traditional fets so you can also resource those brands for more information. You don't have to put RF through the Amplifier to check the devices. Since the max frequency limit of the polyfet(s) might be well above 250 MHz, the same device might work on both the 2-Meter and 224 MHz Amateur Bands. cheers, s. > "Eric Lemmon" <wb6...@...> wrote: > I inherited a bunch of 220 repeater equipment, among which > was a rack-mount Falcon Communications MosFET RF Power Amplifier > built in Newport Beach, CA. > Handwritten on the label is "220 MHz", "4-112A", and "Rebuilt." > The amplifier has two Polycore F1260 transistors working in > parallel, and the input jack is marked "10 Watts Maximum." I > believe that it is rated at 100 watts output. > > I know that Falcon is out of business, and I suspect that a > previous owner may have modified this amplifier from its original > 2m band to work on 220. Without any tech data on this unit, I > may be wasting my time trying to find out what's wrong with it. > I'd like to hear from anyone who has information or suggestions > about this amplifier. > 73, Eric Lemmon WB6FLY
