[AMRadio] Power Supply Question

Byron Tatum bjtatum1 at att.net
Tue Jan 14 08:50:31 EST 2014

OK -
   Thank you for the replies Rolynn and Lee. I did download the AC-400 manual previously and studied the design, but still am wondering why a supply would be done this way? What is there to gain? Also, what is the function of the extra diode D-13 in the Low B+?
    Thanks, Byron

 From: RF PRECHTL  K7DFW <k7dfw at clatskanie.com>
To: Byron Tatum <bjtatum1 at att.net>; AMRadio at mailman.qth.net 
Sent: Monday, January 13, 2014 10:58 PM
Subject: Re: [AMRadio] Power Supply Question

It is a stacked power supply. A 500V supply is on top of the 350V supply to produce 850V for
the high B+.

It is designed that way. See page three.



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