[AMPS] 4x150 vs 4cx250

[nospam4me@juno.com]

Hello Steve,

Yes, the 4x150 and 4cx250 operate in similar circuits.  With the obvious
differences in anode capacity, the 4cx250 has slightly higher values of
internal element capacitance Cin, Cgp & Cout.  In >VHF service direct
interchange is not as straight forward.  

cheers
skipp

:From: Steve Bookout <nj4f@erols.com>
:Hello all,
:Just a quick answer will do.
:Does the 4cx250b have similar operating characteristics to the 4x150?  I
:know the difference between the glass and ceramic, but have a chance to
get
:a couple new, sealed tubes (250's) and the only thing I could possibly
use
:them in is some old Collins thing, a KWS-1, I think.
:Just a thought.
:73 de Steve, NR4M

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