One early vhf version I have used a dual gate fet... but I replaced it with a lower noise device when lightning took it out of operation (with the previous owner). I don't have a diagram of it...
cheers, s. > Kevin Custer <[EMAIL PROTECTED]> wrote: > > drwoolweaver wrote: > > Does anyone know the transistor type used in GLB VHF Preselector > > preamps? Thanks de K5RAV. > > > If it was not a special build unit below 200 MHz, it's a MRF-901 > bipolar. They (GLB) would, however, build (on special order) GaAs FET > models below 200 MHz. I don't know what that device is, as I never > bought a special ordered VHF unit. > > I thought I had a schematic available on the R-B site, but be darned if > I can find it! ....... and it's my own website ------ sheesh. > > Hope this helps... > Kevin Custer >
