At 3/14/2009 15:49, you 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.
I'm sorry. ;) >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." Ouch! Seriously, I'd replace those FETs before you do anything else with it. The early Polycore FETs were a known weakness in those amps. >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. I doubt it, as Falcon did make 220 amps. Our club has one, which I believe also needs repair. >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. Replace the FETs & it just might work, though I've never known them to be very reliable (probably due to the aforementioned FETs). I probably have a manual for it somewhere but it might take me a while to locate it. Bob NO6B
