[ARC5] BC-230 / -430 "Four Pin Tube Bases" Not Needed.

[David Stinson]

----- Original Message ----- 
From: "Ben Hall" <kd5byb at gmail.com>
Subject: Re: [ARC5] BC-230 / -430 "Four Pin Tube Bases" Not 
Needed.


Thanks for writing, Ben.

> I assume you're substituting the 6AQ5 / 5763 for the VT-25's - 
> what again are you using for the VT-52's?

All 6AQ5s
http://home.netcom.com/~arc5/SCR-183/6AQ5s.JPG

or all 5763s.
http://home.netcom.com/~arc5/SCR-183/5763s.JPG
http://home.netcom.com/~arc5/SCR-183/sockets.jpg
You need to add about 3 pFd padder across Neutralizing cap
if using 5763s.

Seem to do fine.  If you want to work AM, the bias needs
a little adjusting.  Still investigating the best way to do that.

73 Dave AB5S