New Unused AMPEREX 4CX350A / JAN 8321 Transmitting Tube - Heavy Duty 4CX250B

Description

... New Unused AMPEREX 4CX350A / JAN 8321 Transmitting Tube - Heavy Duty 4CX250B
New Unused AMPEREX 4CX350A / JAN 8321 Transmitting Tube - Heavy Duty Version of the 4CX250B - Manufacture Date 82-36 - As used in the Collins KWS-1 Transmitter
Photos are an actual AMPEREX JAN 8321
I have a couple of these tubes, all brand new and unused with the same manufacture date, but marking may be a bit different
The 4CX350A/8321 has a maximum plate dissipation of 350 watts and is intended for Class AB audio or RF amplifier service. The tube is externally identical to the 4CX250B but contains rugged internal construction features. Amplification factor and cathode area have been increased over the basic 4CX250B to give higher transconductance and figure of merit.
Buyer to add . shipping (USA)., . WORLDWIDE
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SELLING INFORMATION:
I try to inspect most of the equipment I list for auction, and to describe each completely & carefully. However, since some of the items can be over 60 years old, all items are sold "as is".
Almost every older electronic item will benefit from a careful alignment and cleaning or other restoration. Images may not be unique. Shipping charge may not include AK or HI
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