Ben, I will order some of your adapter kits in a separate email.

Dave, is it possible to search the list archives for the past discussions of this topic? I'd like to see the suggested connections of 5763s in place of the tubes in the BC-AO-430.

Here are my thoughts so far...

Triode connection
4-pin Tube        6AQ5     5763
Plate 2           5 & 6    1 & 6
Grid 3            1 & 7    8 & 9
Cathode 1 & 4     2        1 & 3
                  3/4    4/5    Heaters

I've not puzzled out how to interconnect the cathode and heaters yet...

Steve WD8DAS

http://www.wd8das.net/

http://af4k-crystals.com

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