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Tape Trail Reel to reel, cassette and other analogue tape formats. |
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Tape Trail Reel to reel, cassette and other analogue tape formats. |
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In Reply to: RE: Revox A 77 posted by Inmate51 on January 28, 2015 at 06:51:29:
6bq5,
There are 3 options you have.
1. the best option would likely be to plug the deck into a variac and bring it up slowly over several hours to line level. If the caps are not completely dried out, this will give them a chance to reform a little before being hit with the max voltage they will see in their circuit.
If you don't have a variac, wire a 100 watt light bulb in series with the hot line going to the deck. it will act as a crude current limiter.
2. just plug in the deck to an outlet and flip it on. See if caps 'firecracker" off, unplug the deck, and at least you will which ones were weak, and need to be replaced. Be sure to clean up any residue from the exploding caps since it will be corrosive and over time can attack the PCB board or other components it came in contact with.
3. replace the power supply filter caps before plugging in the deck. With fresh caps, that will minimize the likelyhood of caps going off.
The audio coupling caps, if they are bad, likely won't firecracker off. You will just get some hum that comes through them.
Best of luck. The A77 is a nice deck, and was well built.
J
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Follow Ups
- RE: Revox A 77 - mcgjohn@yahoo.com 09:47:24 01/28/15 (1)
- RE: Revox A 77 - 6bq5 11:44:47 01/29/15 (0)
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