#76
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A Little update, I got my Vibrator yesterday, and I put it into the radio and hooked the battery up to it, turned on the radio and the tubes glowed and the pilot light came on but still no audio and it didn't seem like vibrator was doing anything still.
I've completely recapped this radio (except for the capacitor attached to the volume control that is used for tone compensation), and I tried hooking the vibrator up to my variac and running it with 6V AC and all the way up to 24V AC and the Vibrator is not wanting to respond I was even trying to gently tap the vibrator housing to see if I could get it to start that way, and nothing. So a couple of questions, how common is it for these Vibrators to be Dead, including NOS ones, and do these vibrators actually make an audible humming noise when they are running properly? I just seem to keep hitting roadblocks with this radio and I really want to get this radio working because its a really neat radio. |
#77
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Of the 2 vibrators I have had my hands on both were DOA and had to be brought back to life. They do make an audible buzz in opperation.
It took like 10 minutes of cranking the voltage up for brief 1 second spurts (once or twice I hit 60 on the variac), letting it sit at 12-24V for 5-10 sec and banging it on the table not quite hard enough to dent mine to revive it...
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#78
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#79
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The foam rubber lining was a tendency to react with the contacts, even on a brand new unit. Open up the can on the original vibrator and see what can be done with it. |
#80
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Did the replacement vibrator do the trick. |
Audiokarma |
#81
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That update you quoted was about the new vibrator, the NOS vibrator was dead too, and I tried "shocking" it back to life and it wouldn't work, and I'm not sure what else to try because apparently it's not responding to low voltage AC current shocks, or physical shocks (light tapping).
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#82
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You don't need to be gentle. Bang it harder till it starts to dent then back off a tad so you don't dent it worse.
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#83
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Well I just was trying to make sure I didn't break it, because I paid almost $40 for that thing including shipping. But I can try to hit it harder now.
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#84
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The rest of the tubes, the heaters can use AC. |
#85
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I was thinking of that too but that might be a lot more work than I want to try and tackle.
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Audiokarma |
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