The pile of parts I started with (including some WWII era 811a tubes)
Laying out the cabinet and test fitting
Cutting out the grille
The completed cabinet before installation of the electronics
Installing the custom built sequence switch
Switch in the off, warm-up, and run positions
Winding the secondary (the first time). During the winding I broke the very fine wire but managed to splice it back together. After the winding was complete I tested the wire and found out the splice was bad.
I stripped off the wire and wound it for a second time.
The second winding was beautiful so I moved forward and coated it with resin but the coating failed to cure properly.
This necessitated me stripping off the sticky mess and winding it for a third time
The third winding went fine and I decided to use a polyurethane coating which is more forgiving than resin (but takes patience to apply and let dry between coats). It's now looking good and tests OK.
Questions and comments Copyright © 1997,2006 Brian D. Basura This site was last updated 04/02/06