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- - Need a good isolation Transformer (http://www.videokarma.org/showthread.php?t=260321)

47'Plymouth

12-21-2013 07:24 PM

Need a good isolation Transformer

I'm in need of a isoliation transformer for safety on my bench
ACDC RADIO AND SERIES STRING TV REPAIR
I VE GOT A PACEMAKER/Diffulator to protect as well as me
From a shock hazard
Jody

Gunslinger

12-23-2013 01:05 AM

I have a couple. Will get model number on Monday and will post it with price.

47'Plymouth

12-23-2013 02:33 PM

:banana:Great that you have those trannys
Just wanted to protect myself and my medical device
Thanks Jody call me ASAP (864)923-5733

Gunslinger

12-23-2013 03:21 PM

I have a RCA WP-25a for 40.00 plus shipping
I have a RCA Wp-27A for 65.00 plus shipping. I also have a Sencore PR-57 $125.00 plus shipping

The RCA Wp-25A needs on receptable to be replaced. I just taped it off and never needed to use that one tap

davet753

12-23-2013 05:02 PM

I used to have one of the Sencore PR57's, and it was (next to my VTVM), the most used piece of test equipment I owned. The PR57 is a great product!

Gunslinger

12-23-2013 05:16 PM

PR 57 may be sold.

zeno	12-24-2013 08:08 AM

PR57 only weak spot is the outlets. otherwise a great machine.
Still have the B&K equivelent, flawless for many years.

73 Zeno:smoke:

VTVM	01-18-2014 06:24 AM

Can you buy them new, too? I need one.

Gunslinger

01-18-2014 07:24 PM

still have a Pr57. Receptable is fine.

VTVM	01-18-2014 10:14 PM

I'll PM

VTVM	01-18-2014 10:16 PM

[,,

K7sparky

03-31-2014 04:37 PM

If you have a scrap yard around and don't mind building your own case you can use control power transformers out of old switch boards.

Most scrap yards are HAPPY to get rid of transformers as it is a pain to burn the insulation to strip the copper from the core.

Almost all switchboard transformers have a KVA rating on the voltage plate. A 440 / 220 primary hooked 220 with a 120 / 220 secondary hooked 220. Operate at 120 / 120. You will be limited to 1/2 the KVA rating for current on 120 because of wire size. Heavy, but cheap. If you have a 220 outlet then the 220 / 120 gives you full current.

old_tv_nut

04-02-2014 09:07 AM

One just showed up on ebay:
http://www.ebay.com/itm/Vintage-RCA-...#ht_302wt_1068

dieseljeep

04-03-2014 09:57 AM

Quote:

Originally Posted by 47'Plymouth (Post 3090295)

I'm in need of a isoliation transformer for safety on my bench
ACDC RADIO AND SERIES STRING TV REPAIR
I VE GOT A PACEMAKER/Diffulator to protect as well as me
From a shock hazard
Jody

Being an electrician first and then a electronic technician second, I cant stress enough, the importance of a GFCI receptacle.
Even if the receptacle you're using isn't grounded, it will still give a degree of protection.
Besides a GFI, I still use an isolation transformer, for testing and some servicing. :yes:

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