World War II Navy Radio
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The TDE, like the TBL, combines MF/HF in one package, but is more compact.  Frequency coverage is 300 to 1500kc and 1.5 to 18.1Mc. It runs off a motor-generator unit built into the base of the transmitter.  Unlike the TBL, this transmitter does not share RF tubes.  For MF, the TDE uses an 801 master oscillator, an 807 multiplier/amplifier, and an 803 power amplifier.  The tube lineup on HF is the same but with an 837 master oscillator.  Power output is rated at 135W CW, 35W MCW, and 30W AM.  An 801 audio amplifier and 5U4G bias rectifier are shared by MF and HF.
Mine is a TDE-3, CFN-52267-A made by Farnsworth with an acceptance date of 4-29-44.  It has a 220/440V, 3-phase, 60-cycle motor-generator.  Other models ran on 115VDC, 230VDC, or 110/220, 1-phase, 60 cycles.

TDE-3 Transmitter

TDE Power Supply

The picture above shows the inside of the TDE power supply unit.  The panel in the upper right corner is a modification to keep filaments lit in a standby mode.