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Old 04-10-2021, 12:20 PM
old_coot88 old_coot88 is online now
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Probably no need to open the vibrator at this stage, as the radio probably has low time on it. However there is one component that will definitely need replacing once you get the vibrator running. That's the Buffer Capacitor. It's connected directly across the secondary of the transformer. Its purpose is to prevent arcing/pitting of the vibtr contacts. Back in the day we always changed the Buffer out of hand with every vibtr replacement. And it's guaranteed to be leaky after decades sitting. Not sure what value yours is, but it'll be rated at 1600V or higher.
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Old 04-10-2021, 12:31 PM
vortalexfan vortalexfan is offline
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Quote:
Originally Posted by old_coot88 View Post
Probably no need to open the vibrator at this stage, as the radio probably has low time on it. However there is one component that will definitely need replacing once you get the vibrator running. That's the Buffer Capacitor. It's connected directly across the secondary of the transformer. Its purpose is to prevent arcing/pitting of the vibtr contacts. Back in the day we always changed the Buffer out of hand with every vibtr replacement. And it's guaranteed to be leaky after decades sitting. Not sure what value yours is, but it'll be rated at 1600V or higher.
The buffer cap in my unit (C5) is a .005 MFD 1200 VDC unit.
I do have several 1600 VDC film caps that were for use in TVs and VCRs.

Is the capacitance rating crucial in this application? If not I have a .0082 MFD 1600 VDC Film capacitor that I could use in place of the old .005 MFD 1200 unit.
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