Reply To: Mercotronic Model 98 and Model 9800 Information

[jeff-register]

I have worked on the vibrator type mot. Using a burnishing tool, I’ve added material to the contact points with good results. I have thought about using  a “555” chip to form the polsed signal to replace the electro-mechanical viberator. Use that with a darlinton transiator for output.Unfortionally I have been very sick for the last year, almost died. Also thought of using a vibrator from an old car radio as they fed a pulsed signal to a transformer to “UP” the voltage to run the heaters in the vacuum tubes. It’s just a matter of matching the pin-outs on each vibrator. This thread gives me incentive to do research using electronic “555” chip based unit to help others, Using a R–C timing math to acheave the correct frequency. A capacitor, commily called a condenser is the timing  devise controlled by resistor bleed down time (varibal) to get the required pulse timing to match the MOT vibrator.

CHEV 29: Question. Have you ever used an O-scope to find the electro-mechincal vibrator? Please advise if you know the frequency. I would thing at WOT RPM would be fast enought for testing. Being mechnical it must be slow. I did find a suitable darlington transistor used by Ford for ignition we could use but it was out of production, I was a few years late sadly P.S. A 555 & 556 chip is one that is still in production from the 60’s. That’s rare for chips! Thank you everyone ahead  of time, feels good to be back, Still in a wheelchair but breathing still.

Jeff