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Amplifier/Receiver Manufacturer:



HT-37 with rectifier tubes. If you have chosen to use solid state rectifers and don't need the rectifier tubes, we also have that tube set in our store.


Primo tube set for receiver (see tube list below)

Amp Bias Type:

not applicable

Tube Quantity in ( )

Rectifier/regulator Tubes:

V16 = 0A2 (1)

V17 = 5R4GT (1)

V18 = 5V4 (1)

Transmitter Tubes:

V1 = V13 = 12AX7/ECC83 (2)

V2 = V3 = V4 = V5 =V15 = 12AT7/ECC81 (5)