I have a GLB Preselector-Preamp in my hands right now and it is an MRF901
transistor. Kevin, you are correct. Photos available for those who don't
believe. ;-)
I have several of these in 2 meter and 222Mhz versions and use them to
either fix or prove many problems. They will fix a multitude of sins, but
not on-frequency interference. Right now, I just happen to have one apart
to change the connectors to N type for a project. The model number
sometimes will tell you what it originally was used for. Mine is a
P-147.49MHZ, I used it on a special project I did years ago. I had a wide
split 2 meter repeater that used duplexers that were meant for a 5Mhz
split. The GLB gave me enough isolation to do a 2MHZ split with low power.
I still have the original catalog, it states that the GaAS fet option was
available in VHF&UHF versions. I believe that all of mine were BiPolar
versions, I think the "P" at the beginning of the model name denoted
that. I still have documentation and catalogs, but no schematics. They
were never available. The documentation was just sales info and
specifications.
73, Joe, K1ike
At 08:42 PM 4/8/2005 -0400, you wrote:
>Remember, the GaAs FET option was only available on models over 200 MHz.
>I'm sure the part is a Motorola MRF901, but I'll look some more to be
>absolutely certain.
>Unfortunately, not much information accompanied a new Preselector/Preamp,
>and I can't even find what did come with the several I purchased over the
>years.
>
>Kevin Custer
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
