VCR transformer hum

[Eric G]

It looks like my VCR will be going back 'somewhere' to be repaired
properly.

This time, while it's being repaired, I'd like to silence a
transformer hum that I've noticed for a couple of years.

It's not very loud at all, but I can hear it when the machine is not
playing, just plugged in.

My questions. Will a good new transformer in a quality machine (mine
is a $600+ JVC) make any audible noise?
If not, how much would a new replacement transformer cost and would I
have any difficulties getting one for a VCR that's well over ten years
old?

Thanks!

 

[Mike]

i would put rubber mounts on the transformer, to absorb the sound before it
amplifies to the plastic

 

[Sam Goldwasser]

It looks like my VCR will be going back 'somewhere' to be repaired
properly.

This time, while it's being repaired, I'd like to silence a
transformer hum that I've noticed for a couple of years.

It's not very loud at all, but I can hear it when the machine is not
playing, just plugged in.

My questions. Will a good new transformer in a quality machine (mine
is a $600+ JVC) make any audible noise?
If not, how much would a new replacement transformer cost and would I
have any difficulties getting one for a VCR that's well over ten years
old?

Any replacement is likely to be from a junker and may have the same
problem. It may be possible to silence yours with varnish, or as
someone else suggested, rubber mounts.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work. To
contact me, please use the feedback form on the S.E.R FAQ Web sites.

 

[Eric G]

i would put rubber mounts on the transformer, to absorb the sound before it
amplifies to the plastic

AHem......
Mine is a quality VCR built maybe 10-15 years ago. The chasis is all
very sturdy metal.
As a matter of fact, I was going to pick up a spare cheapo VCR (~$70)
a few weeks ago to save wear and tear on my good one.
When I plugged it in and played a couple of tapes I knew it was going
right back to the store. The cheapo plastic chasis hardly contained
any transport noise. Man was it noisy compared to my old one!

I guess I can try rubber mounts in any event.
BTW, I once wrapped a stereo amplifier transformer in towel to dampen
its growing hum. Would this harm the amp, transformer?

Eric

 

[Eric G]

Any replacement is likely to be from a junker and may have the same
problem. It may be possible to silence yours with varnish, or as
someone else suggested, rubber mounts.

Thanks Sam.