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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

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Old 16th Feb 2019, 12:51 pm   #1
stewartrose
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Cool Revox A-700

Good Morning to All,

I am looking for someone that can either repair VU METER for A700
Or have one for sale please...

All the best from Alan & Thank you
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Old 16th Feb 2019, 1:01 pm   #2
Station X
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Default Re: Revox A-700

Try PMing forum member DOFFERY. He does R-R repairs and in located in Blackpool.
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Old 16th Feb 2019, 4:19 pm   #3
stewartrose
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Wink Re: Revox A-700

Thank you for the information, that sounds great

All the best from Alan
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Old 16th Feb 2019, 4:56 pm   #4
Michael Maurice
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Default Re: Revox A-700

They are as rare as hens teeth, the last one I bought several years ago cost around 150
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Old 16th Feb 2019, 9:14 pm   #5
stewartrose
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Red face Re: Revox A-700

The last one sold on ebay was 120, but mine was working OK at that time.

That's life....

All the best and thank you from Alan.
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Old 17th Feb 2019, 3:15 am   #6
TIMTAPE
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Default Re: Revox A-700

Also, sometimes a meter movement can be repaired. I've been successful in some cases. A watchmaker or someone skilled in fine, delicate repair work may be able to do this. Sometimes glues used in original manufacture let go and new glue needs to be carefully applied after realigning the relevant parts. A steady hand as well as lots of patience helps. Probably not for novices!
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Old 17th Feb 2019, 11:55 am   #7
stewartrose
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Default Re: Revox A-700

Hi

Yes I was looking at a Russian set of photos, where he took one side of the VU meter out, so that gave me an idea, look for a VU meter. The one on the right is working, and on the left the VU meter is not working.

So anyone out there have a good right meter they want to sell?

All the best from Alan
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Old 17th Feb 2019, 1:24 pm   #8
TheGAoW
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Default Re: Revox A-700

As posters say - rare as hen's teeth. And v hard to fix. Watch maker country... A700s are not that wide-spread hence the lack of parts - I took 6 months to find the feet for mine.
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Old 17th Feb 2019, 5:55 pm   #9
stewartrose
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Talking Re: Revox A-700

I agree with you, but I might be more lucky getting a meter with one side working, against both working... have to try...

All the best from Alan
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Old 23rd Feb 2019, 8:00 am   #10
TheGAoW
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Default Re: Revox A-700

Update to this issue, I saw an ad for an LED meter replacement for the A700. Unfortunately I cant recall who the vendor was. Try a Google search.
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Old 23rd Feb 2019, 9:15 am   #11
Marotick
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Default Re: Revox A-700

well I do, but I life in the Netherlands
The costs for repair is 50 euro.

Jack Marotick
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Old 23rd Feb 2019, 9:23 am   #12
Ted Kendall
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Default Re: Revox A-700

Revox-Online have new replacements for a mere 260 Euro...I'm not sure if the LED jobbie made it into production.
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Old 23rd Feb 2019, 12:09 pm   #13
TIMTAPE
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Default Re: Revox A-700

Just seeking a little more detail from Stewartrose. Have you removed the meter unit from the machine? Are you certain it is the meter itself that is at fault rather than the driver circuitry or wiring?

Assuming the problem is the meter, can you measure the resistance of each meter's terminals with a digital multimeter? If they measure the same or close to it, that means the delicate moving coil is intact as well as the connections through the hairsprings right up to the outside terminals. There's more hope of a repair in that case.

As already mentioned, if your aim is simply to monitor record levels, a generic stereo LED bar strip and matching driver circuit could be custom installed.

An alternative is a similar style of analogue stereo meter, probably needing some mods to adapt but of course not the original look. See photo.
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