[Johnson] Need Valiant HV transformer

[Bill Cromwell]

Yikes!

Hi Stu,

There have been quite a few posts over the years on the lists at QTH 
that identify some guys who rewind those transformers. An archive search 
would probably turn them up. I'm thinking it would not be cheap and 
'postage' would increase the price but it's one possibility.

When I was a kid we could get power transformers pretty cheap..right 
down to picking them out of the trash. Not so much any more. All of my 
boat anchor transmitters have the "accessory" socket on the back and I'm 
thinking of rearranging those so that the old transmitter becomes the 
accessory and the power supply lives under the bench. My intent is to 
ease incorporating various transmitters/receivers into the shack. That 
could be a short term solution for you while you hunt for your 
replacement transformer.

73,

Bill  KU8H


On 06/12/2014 02:15 AM, w7fe wrote:
> Ideally, I'd like to find a good plate transformer for my Johnson Valiant , but anything that will fit and that I can use to make 800V. at about 600 mA. would be OK.
>
> Here's the story:
>
> A .01 uF, 1.5 KV-rated bypass cap at the HV connection to a small old-style molded RF choke which is in series with the main HV plate supply RF choke suddenly shorted, thus gounding the high voltage thru the choke. With a snap and a buzz, the little RF choke gave its all and dramatically caught fire. It blackened the bottom of the tall plate choke a bit, but did no electrical damage. However, before I got to the HV switch, the HV power supply transformer's primary shorted which then blew the 8A line fuse.
>   
> What a reVOLTin' development this is.
>
> 73
>
> Stu, W7FE
> Henderson, NV
>
>