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Amplifier/Receiver Manufacturer:



500 only (check store for 500C, 500CX models which use different tubes)


Complete Primo tube including all receiver and transmitter tubes with a power amp tube - retube your radio and start hearing and working DX again!

Amp Bias Type:

fixed bias - plug & play tube set

Tube Quantity in ( )

Rectifier/Voltage Regulator Tubes:

0A2 (1)

Preamp Tubes (matched):

12BE6(2), 12BA6(3), 12BZ6(1), 12AX7(2), 6GK6(2), 7360(1), 6BN8(1), 6EW6(2)

Power Amp/Driver Tubes (matched):

6HF5 (2) - plate current matched pair

Total Tubes in this set: