[50mhz] Used 8874 tubes for DXpedition Amplifier

[w2drz]

Hi All,

Just replace with 3CX800's ( if the anodes fit in place of the 8874's )
all is needed is a 13 volt transformer for the filaments !

A little of massaging mechanically for the bigger tubes , no power
supply change or bias change ??? need to check that and just plug in the
3CX800's with the bigger anode clamp arrangement ..

best tom

"Lance Collister, W7GJ (DN27ub)" wrote:
 he has a Tempo 6N2 that he got from me many years ago, but the tubes
> > in it are shot.

 Wonder if you of of anyone
> > that might have a pair (8874s, I forget) that they might dontate for a
> > good cause.
> I don't know of any source for 8874 tubes,

the 3CX800's will do 1.5 KW out with about 25+ watts or so of drive if
input is a good circuit ..


best 73 tom W2DRZ  FN02LA       what we do:
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