Three NOS tetrodes+a brand new socket for asle.
FC-10F, FC-732F, FC-735F, similar tube use same socket, can replace each
other.But FC-735F with highter Uamax(3400V) and freqience rating( up to 1GHz)
These tubes were used in TV transmitter , superb linearity(3rd IMD order
less ?C52db), oxide cathode. These tubes can work from 160m to 70cm ,
Pamax=2500W, Ua=3kV( 735F=3400V),Screen=350-400V, bias=-20 to ?C45V,
ZSAC=400ma.Flament=5.9-6.6A@10.7V
the socket and FC-735F are brand new, all tubes are NOS,FC-732F and FC-10F’s
anode are oxidation but I’m sure these tubes never used, I get
these tubes from a spare parts box from a aquosity basement in a TV station.
The 735F with sealed plastic bag , but FC-10F and FC-732F without.All tubes
Hi-pot test OK and all elcectrode not shorted in hot codx( feed to filament
power supply).
Total=$650, free shipping( surface mail) include 3 tubes and a brand new
socket.
73!Hsu
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