[ETO_Alpha] FS: New unopened 3CPX800A7

[MU 4CX250B]

I was under the impression that the pulse rated tubes were identical
internally to the non-pulse-rated  tubes, except for slightly longer
ceramic insulation that increased the peak voltage rating (and added
more inductance to the internal grid wires.) I know the tubes are
specified for high peak currents, but i thought that was just an
additional specification, not a change in tube construction. If I'm
mistaken, I would welcome being corrected.
73,
Jim w8zr

Sent from my iPhone

> On Mar 23, 2015, at 7:32 AM, Jan C. Robbins <swanman at cfu.net> wrote:
>
> If you're running a 9500, here is your chance to get that extra tube at a REASONABLE price.
>
> I have one brand new purchased 2015) Penta pulse-rated 3CPX1500A7 (8877), capable of handling much higher plate current than the standard Eimac or Penta 8877 you buy from, e.g., RF Concepts, Ameritron or RF Parts (all of which sell Pentas, which are superb tubes). I sold 3CPXs to hams for nearly 20 years, and they are THE BEST tubes for very-high-power amps.  The 3CPX1500 normally sell for $775 and up (way up), but I can ship this one anywhere lower 48, fully insured, for $595. PayPal preferred, other methods acceptable. Tks es 73 N0JR
>
>
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