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A horizontal ribbon.

VT-100A
Power Pentode

EIA Base & Outline

EIA Base: 5AWEIA Bulb: 12-35
Source ........................................ TM 11-310 - 1944

Application

Source ........................................ TM 11-310 - 1944
Heater-cathode type used as af power amplifier and modulator and as rf power amplifier and oscillator. May be used with full input up to 60 MHz. For class C telegraphy operation at 80 MHz,

Source ........................................ TM 11-310 - 1944
plate voltage and input should be reduced to 80 % of maximum ratings; at 125 MHz to 55 %. Class C telegraphy maximum plate dissapation, CCS 25 Watts, ICAS 30 Watts.

Source ........................................ TM 11-310 - 1944
Requires small 5-contact socket and may be operated in any position. Plate shows no color when tube is operated at maximum CCS or ICAS ratings.

Source ........................................ TM 11-310 - 1944
This is a pentode, with g1, g2, and two beam-forming plates connected to the cathode. It is so shown in the RCA TT-5 Tube Manual. It is NOT a tetrode, as shown in almost every ARRL HB ever printed!

Mechanical Data

Source ........................................ TM 11-310 - 1944
EIA Outline ................................... 12-35
EIA Base ...................................... 5AW

Electrical Data

Source ........................................ TM 11-310 - 1944
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 A

Source ........................................ TM 11-310 - 1944
For other characteristics and typical operation, see 807W

A horizontal ribbon.

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A horizontal ribbon.

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Thu, 29 Sep 2022 22:34:25 -0700