Hi,
Does anyone have a schematic and know if the metal case and other
exterior metal parts of the Pegasus are supposed to be connected to
ground ? On mine, I read several ohms of resistance. Before I
blunder on in and "fix" it, I'd like to know if it is ungrounded by
design.
73 de Gary, AA2IZ
----- Original Message -----
From: <al_lorona@agilent.com>
To: <msadams@acsu.buffalo.edu>; <randnichols@ghg.net>
Cc: <tentec@contesting.com>
Sent: Sunday, December 15, 2002 4:28 PM
Subject: RE: [TenTec] Omni 6+ Low Power Troubles
>
> MRF 458s have been going extinct for several years now. It gets harder and
harder-- and more and more expensive-- to find them. You should be able to
substitute MRF 454's with little change in performance. MRF 454s are much
more plentiful. I believe I looked into that at one time and confirmed that
the MRF 454 would be a suitable replacement.
>
> One of the other guys with a data book would be able to confirm or deny
that.
>
> Al W6LX
>
>
>
> > -----Original Message-----
> > From: Mark S. Adams, P.E. [mailto:msadams@acsu.buffalo.edu]
> > Sent: Saturday, 14 December 2002 9:51 AM
> > To: randnichols@ghg.net
> > Cc: tentec@contesting.com
> > Subject: [TenTec] Omni 6+ Low Power Troubles
> >
> >
> > Hi Gang,
> >
> > I just called TT about this Thursday as my 6+ is limiting
> > power on all
> > bands to 15W. (It is amazing I even notices as I run the rig
> > at 1-5W about
> > 99.95% of the time.)
> >
> > The service guy said that I should be looking at the
> > BAT-41diodes on the LP
> > Filter board as they are likely damaged by ESD. The other
> > option is the
> > Motorola power modules. To check these, disconnect the coax
> > from the power
> > amp module at the LP filter board. Using a dummy load and
> > power meter,
> > start low and raise power. If you get good power, the LP board is the
> > problem, if not the PA is the likely the problem. Bear in
> > mind that the PA
> > will make 150w this way as it is not ALC limited.
> >
> > Lastly, TT is having a hard time getting PA's and right now
> > they are ~$80
> > for a matched pair at TT. RF Parts has them listed for
> > $18/ea but TT says
> > they are going to be out of stock.
> >
> > GL es 73,
> > Mark K2QO
> >
> > Mark S. Adams, P.E.
> > University at Buffalo
> > Occupational and Environmental Safety
> > 220 Winspear Avenue
> > Buffalo, NY 14215-1034
> > Tel: 716.829.3707 ext. 25 Fax: 716.829.2704
> > Cell: 716.863.7229
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
|