4CX350A/8321 Transmitter Tube Eimac Amperex Power Tetrode Referefence Page

A few of the hard to find 4CX350A/8321 transmitter tubes. These tubes are used but in fine working condition. Two are made by Amperex and two of Eimac. Four SK6368 Eimac sockets are also available. Sockets are used but they are in very good condition. Tube data for reference only - no longer available!

These tubes are the bread and butter of high power amplifiers and amateur or commercial short wave transmitter output stages. The following shortwave broadcast transmitters use these 4CX350A/8321 transmitter tubes;

     Collins                  208U-10          Collins                  821A-1
     Collins                  821A-2           Continental Electronics  416 D
     Continental Electronics  416 E            HCJB World Radio         HC 500
     RIZ Transmitters         OR 5 K-01/A

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REFERENCE PAGE - INFORMATION ONLY Features: • 4CX350A/8321 Power Tubes • MFG: Amperex and Eimac • 350 watts maximum plate dissipation • Frequency for Max. Ratings - 110 MHz • Oxide-coated Unipotential Cathode • Externally identical to the 4CX250B • Ceramic construction • 1.64" MaxDia x 2.47" Height • Weight - 4 oz; 112 gm • Quality Made in USA Notes: • No longer Available • Data For Reference Only

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