[Heathkit] DX-40 Pwr Xfmr

[lee]

I assume you are saying it gets warm right away when the transformer has 
nothing hooked to the output winding.  You certainly will see a difference 
in resistance with both halves of that transformer.  That said if nothing is 
hooked to the transformer output and it gets warm quickly,  you have a 
transformer problem.

Lee, w0vt

-----Original Message----- 
From: Bill Stewart
Sent: Monday, January 30, 2012 1:55 PM
To: heathkit
Subject: [Heathkit] DX-40 Pwr Xfmr





Good afternoon:

My trusted DX-40 is blowing its fuse. After some initial checks, I have 
disconnected the HV leads and made the following measurements: Total HV 
winding resistance: 312 ohms

Outside-to-ct: 181ohms/344 vac....

Outside-to-ct: 131 ohms/274 vac. The ac measurements are made with 60vac at 
the plug.

The xfmr gets warm even tho the on time is short.



Would ya say this resistance/ac voltage imbalance would indicate a tranny 
problem?

Thanks, 73 de Bill K4JYS




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