[R-390] R-390A B+ current drain

K2CBY k2cby at optonline.net
Sun Jun 21 09:23:46 EDT 2009


 

Before jumping to conclusions about the condition of the power supply choke 
you should note that the AF chassis also contains the voltage regulator
tubes.

More to the point, it contains the voltage dropping resistors connected to
the 
voltage regulators. Those resistors are firmly bolted (read heat sinked) to 
the AF chassis. I am not surprised that the chassis runs warm.

Miles B. Anderson, K2CBY
16 Round Pond Ln
Sag Harbor, NY 11963 USA
Tel.: (631) 725-4400
Fax: (631) 725-2223

E-mail: k2cby at optonline.net 

 



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