At 08:55 AM 02/20/08, you wrote: >Hey Scott, Kevin and all you GE Guys... > >Looking through the Repeater-Builder Web Page "GE Section" I >see a lot of GE Radio Information (thank you). In specific a nice >selection of 224 MHz Band conversion information. However, most >all of the conversion information involves High Band (150 MHz) >Radios. > >Looking through a UHF 450MHz Band GE MVP Service Manual I see >the frequency is multiplied right up through the 220 MHz band >before the last doubler and final amplifier. > >Has anyone tried to reconfigure the last doubler stage as a >buffer? Has anyone followed through to try and make the trailing >PA section operate "down" on the 224 MHz Amateur Band? > >Converting the 5 watt GE MVP PA down to 224MHz might not be >such an unwieldy project. > >Without first looking at the GE Master II Service Manuals I >might suspect a similar UHF 450MHz to 224MHz conversion is >possible? > >Just thinking out loud questions... > >cheers, >skipp
I'm not a "GE guy" even though I put together that collection (1,632 files at about 1.8gb). There was a conversion of the old GE Prog receiver and transmitter back in the 1970s for 220 that did the exact same thing - converted a 440 radio to 220. The transmitter used 1/2 wave tuned lines so it was relatively easy to relocate the doubler-driver plate and both the final grid and the plate tuning capacitors from one end to the other, changing the doubler-driver into a driver, and leaving the final straight-through. The only think I forgot (and had to go back and do) was to turn up the dev when I was done (the missing doubler cut the total dev in half). Mike WA6ILQ
