RE[Hallicrafters] Technical question

[jeremy-ca]

Thats the correct pin outs for a 7 pin regulator.

Im curious if it was originally configured as a negative supply? Did you 
check the diode, electrolytic and meter polarity?

Carl
KM1H


----- Original Message ----- 
From: "Walt Cates" <cateswa at msn.com>
To: "hallicrafters" <hallicrafters at mailman.qth.net>
Sent: Saturday, May 24, 2008 12:32 PM
Subject: RE[Hallicrafters] Technical question


Skip,

The ckt you describe is a bit unusual. Usually the dropping resistor is 
between the rectifier output and pin 5. This configuration would allow the 
use of 0A3 ( 105V regulator ) to deliver the 135v output but the regulation 
would be poor.

Double check where the resistor is connected.

Best Regards, Walt WD0GOF
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