[Randy Bassham]

I've got several of those Philco 802's and an 801 which only had one audio output tube, my 1948 Dodge has the Motorola radio model CR-8. The vibrators used in these sets were not polarity sensitive. If you are replacing the vibrator make sure to replace the buffer capacitor also, it's rated at 1600 volts and the capacitance is critical. I think nearly all 4 pin 6 volt vibrators are interchangeable, but I could be wrong. Other than the vibrator power supply these radios are serviced just like any other tube set and have many of the same considerations such as replacing capacitors and filters. They are nice performing sets but tend to run down the battery pretty fast if the motor's not running. I'm in agreement with using an original vibrator, I just love to hear it fire up when I push the power button.