[HBR] S-40B's and other tales

[n2ey at aol.com]

-----Original Message-----
From: Thomas C. Dailey - Dailey Services, LLC <daileyservices at qwest.net>

>I sometimes have taken an old tube-socket and replaced 5U4's, 5Y3's, 
and such with a pair of diodes,

If this is done, it's a very good idea to insert a resistor so that the 
resulting B+ is the same as it was before the change. A 5Y3 at full 
ratings can have significant voltage drop, and the rest of the rx 
doesn't need the higher B+ that silicon will provide.

Resistor and diodes can go in an old tube base, too.

73 de Jim, N2EY 


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