[JMS] 90281 power supply

[Tom Elmore]

Brian, How much do you think you will be asking for the supply.

Thanks 
-Tom  KA1NVZ

-----Original Message-----
From: james_millen_society-bounces at mailman.qth.net [mailto:james_millen_society-bounces at mailman.qth.net] On Behalf Of Brian Harris via James_Millen_Society
Sent: Tuesday, November 02, 2021 3:53 PM
To: Millen Society
Subject: [JMS] 90281 power supply

I have three 90281 power supplies with serial
numbers 139, 157 and 237.

The two earlier numbers have power transformers which have removable end bells. The later one has a larger, hermetically sealed transformer.

Assuming the hermetically sealed unit is original, does anybody have a supply later with the hermetically sealed transformer?   Does anybody know when the change was made and why?

I’m asking these questions because I am going to sell one of my supplies and I don’t want to sell the best version, if there is one.   If one is no better than the other, I will sell the hermetic version because doing so would leave me with a spare supply with the correct transformer and, more important, one which could easily be rewound if I should have a failure.

Thanks for your time. 

Brian Harris WA5UEK 
Sent from my iPhone
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