[Heathkit] HO-10 Monitor Scope transformer

[Sandy W5TVW]

The HO-10 transformer was notorious for doing this!  Some defect in the 
design I'd imagine.  The SB-610 was not nearly as bad about power 
transformers going bad.  Suspect they made some improvements?
If anyone see's an HO-10 or SB-610 or their associated panaramic adapters at 
hamfests, make sure you get a trace on the screen or you can be assured the 
power transformer is whacked out.

73,
Sandy W5TVW
----- Original Message ----- 
From: "Tom Chesek" <tchesek at epix.net>
To: <Heathkit at mailman.qth.net>; <HEATH at LISTSERV.TEMPE.GOV>
Sent: Thursday, April 05, 2007 9:40 AM
Subject: [Heathkit] HO-10 Monitor Scope transformer


> As suspected the transformer in my HO-10 monitor scope is bad. The high 
> voltage winding is open. There is no short to ground at this point but if 
> I apply power it heats up and starts to smell, therefore I assume if I 
> left it powered on it would eventually cook off all of the insulation and 
> short to ground. I am not interested in spending a lot of money to have 
> the transformer rewound. Physically this scope is very nice, so I want to 
> fix and use it myself.
>
> I know it is asking for unobtainium but does anyone have an HO-10 or HO-13 
> transformer that you are willing to part with? Second choice would be a 
> SB-610 or SB-620 transformer. If not I will have to proceed with 
> fabricating an external supply. Is anyone else running one of these scopes 
> with an external supply and if so what is your configuration?
>
> 73,
> Tom K3TVC
>
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