[Moon-Net] Re: [50mhz] Re:Used 8874 tubes for DXpedition Amplifier

[Rainer]

Hi,

the 8873 is a conduction cooled 8874 - the 8875 has horizontal air fins.
A 3CX800A7 does not fit into either a Tempo 2002 or a 6N2.

Palle - with 60 to 80 W in  I get +1200 W out on my Tempo 2002 !!!

73, Rainer

PS: I'll take any left over 6N2 or Tempo 6002/2002 also !!!

Frosty wrote:

> If any one has any 8874's ai will be going over to ZS land around the 3rd of
> July and would take them. I am meeting ZS6WPX and will be going to Swaziland
> 3DA0CF and hopeful to C9. 8874 tubes new are expensive around $500.00 each I
> would also like to have some for my Alpha.
> What ZS6RAD might do is think about changing them out for 3CX800A  Ithink
> that is the 8873.
>
> Frosty K5LBU/3DA0CF
>
> ----- Original Message -----
> From: "Lance Collister, W7GJ (DN27ub)" <w7gj@bigskyspaces.com>
> To: "Hal ZS6WB" <zs6wb@telkomsa.net>; "Moon-net" <moon-net@nlsa.com>;
> "50mhz" <50mhz@mailman.qth.net>
> Sent: Monday, April 29, 2002 5:13 PM
> Subject: [50mhz] Re:Used 8874 tubes for DXpedition Amplifier
>
> > Hal ZS6WB wrote:
> >
> > > Hi Lance
> > >
> > >
> > >
> > > Thanks for the infor regarding W7FN. Will drop him a line regarding
> JT44.
> > >
> > >
> > >
> > > Had a visit from Rad, ZS6RAD yesterday and that brought to mind that
> > > he has a Tempo 6N2 that he got from me many years ago, but the tubes
> > > in it are shot. He is busy getting going on WSJT and one of the
> > > purposes of his visit was to load WSJT onto his laptop. Had problems
> > > getting it running but ZR6DXB has taken it away and will have it
> > > running by the end of the week, probably with a new operating system.
> > >
> > > At current exchange rates the cost of new tubes for it in our currency
> > > is astonomical, over the moon so to speak. Wonder if you of of anyone
> > > that might have a pair (8874s, I forget) that they might dontate for a
> > > good cause. I'm sure Rad would make the amplifier available for the
> > > expeditions if it were operation.
> > >
> > > Rad is a keen (and good) VHF CW operator and has good antennas
> > > including a 6M2WL, 9 elements on a 39.5 foot boom and a long M2 2M
> > > Yagi. I was selling M2 antennas during the last cycle and there are
> > > quite of few of them down here. Exchange rates (and the economy) were
> > > a lot better then.
> > >
> > > Rad was one of the operators on the Penquin Island DXpedition and I
> > > worked him at ZS9Z/1 on 6m MS (SSB) for a new one. He is now retired
> > > and has time to spare so would be a good candidate (along with ZS4TX)
> > > for the expeditions we're talking about.
> > >
> > Hello Hal,
> >
> > I don't know of any source for 8874 tubes, but I will forward your email
> > for suggestions.  Hopefully, if anybody knows of any, they will contact
> > you directly.  It sure would be great if you could fire up the old 6N2
> > to take with you on 2m and 6m DXpeditions to the those new countries!  I
> > have no personal experience with that amp, but I wonder if there are
> > maybe some other tubes (that were perhaps more arffordable and
> > available) that you might be able to substitute into it?  If you can't
> > find any 8874 tubes, you might look into trying to find some reasonably
> > priced Russian triodes and sockets.  GL and we hope you can get setup
> > for EME DXpeditions on both 2m and 6m soon!
> >
> > MNI TNX for all your interest and effort!  Vy 73, Lance
> >
> > --
> > Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
> > P.O. Box 73
> > Frenchtown, MT  59834  USA
> > QTH: DN27UB
> > TEL: (406) 626-5728   FAX:(406) 728-6320
> > URL: http://www.bigskyspaces.com/w7gj
> >
> >
> >
> > _______________________________________________
> > 50mhz mailing list
> > 50mhz@mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/50mhz
>
> _______________________________________________
> Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html