[Amps] HV Transformer

[Bryan Swadener]

Until I rewound my first xfmr back in the 1980s (HV to LV, 750VA), 
I also used to think it was difficult. The most recent rewind was LV 
to HV, 4500VA. Being from a medical device, it has a split bobbin, 
with two tapped primaries that allow it to run on 100/120/200/240V. 
The core has enough iron to support 50 Hz: 
http://tinyurl.com/wa7prc-transformer. 
Thanks go to Manfred XQ2FOD and his info on his website, and 
a coworker of mine. 

A transformer shop in OR had the NMN (Nomex-Mylar-Nomex) paper 
I needed, and a local shop vacuum-pressure "varnish" (actually, 
polyester) impregnated it free-gratis. The salvaged xfmr cost zero. 
My investment was about $100 for a spool of HML (heavy 
polyimide-coated) 18ga wire and 3X the needed NMN paper. 

vy 73, 
Bryan WA7PRC 
 
     Date: Sat, 30 Jan 2016 12:48:44 -0600
From: KD4POJ
To: Amps
Subject: Re: [Amps] HV Transformer

Thanks everyone.  

While some have suggested I wind my own transformer out of junk parts from a
salvage yard (BTW which I have checked they don't have what I would need) it
would be interesting and fun if nothing else Educational, it's not really
something I have the resources or skill to do.

I have found one power supply that might work.  I will be getting together
with that gent when I visit CA for the IDXC in April

Thanks again for the assistance

73 and Good DX 
Dwayne 
KD4POJ