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Introducing my new Variable AC isolated Power Supply..

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Introducing my new Variable AC isolated Power Supply.. Empty Introducing my new Variable AC isolated Power Supply..

Post by jpdesroc Wed May 09, 2018 7:09 pm

Hi guys,

Because one of my latest passion is vintage radios repairs
I started many years ago to look at some repair GURU’s videos on Youtube.
I discovered that to get efficient at radio repair you need
to own a minimum of RF and metering test equipment.
One of these test equipment would also be an isolated variable power supply
for testing AA5 (All american radio) non isolated radios
that have live chassis..
Because most of these Variable AC supplies are expensives
I decided to build my own with available parts.

This project of mine is viewable here:
http://www.arcenson.com/projects/AC_Isolated_Variable_Power_Supply/

I hope this project could help some people to build their own.

Enjoy !
Jean-Pierre

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Post by jukeboxman Wed May 09, 2018 8:36 pm

thanks for the info very nice work

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Post by Clinton_2 Thu May 10, 2018 8:29 am

Very nice.  Thanks for posting.

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Post by Bill Cahill Fri May 25, 2018 1:19 am

A real pro..............

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Post by ve1arn Sat Feb 20, 2021 9:24 am

Awesome work! And beautifully explained on your web page too.
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Post by Dale H. Cook Sat Feb 20, 2021 11:15 am

Rolling your own isolated variable supply can be very satisfying. I did so many years ago for work, and have often dragged it into the shop. I have long had another Variac (I use only GR variable autotransformers) and have (I think) all of the other parts that I need to build a second one that can live on the bench. Here is the first one, built about 20 years ago - it has a removable cover for field use:

https://plymouthcolony.net/starcity/radios/pages/custom.html
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Post by Spivey Sat Feb 20, 2021 10:19 pm

Very nice work. Congratulations, you must have some parts bin.

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Post by Dale H. Cook Sun Feb 21, 2021 12:14 am

Spivey wrote:... you must have some parts bin.
I do - I have been accumulating parts on my own for more than forty years. Over that time I've added parts given to me by friends who, as they got older, downsized their shops. I also have parts from decommissioned radio station transmitter sites. Although I am now mostly retired I always have a backlog in my shop. I'm about to use one of my 'scopes to fix my other 'scope, which has developed a triggering problem.
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