06-24-2015, 07:57 PM
The original Mazda bulb (with a straight filament) was designed for a max voltage of 3.3 volts. The energy for this bulb is RF (I think) originating in the radio chassis and is adjusted via a compensator. My guess is that the radio cannot supply the kind of voltages you are talking about. If your bulb has been changed you might need to find one closer to the specs of the original Mazda. I don't know the how a 55 matches up to that. Check out the info on Philco Repair Bench regarding the BOL lamp.
The original gum rubber that holds the bulb assembly inside the tube is likely disintegrated and is "stuck". You might just have to expect that with difficulty you will get it out, and will need to find something to replace it with. If you are lucky a small piece might be salvageable to still use to seal the tube.
marv
The original gum rubber that holds the bulb assembly inside the tube is likely disintegrated and is "stuck". You might just have to expect that with difficulty you will get it out, and will need to find something to replace it with. If you are lucky a small piece might be salvageable to still use to seal the tube.
marv
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