The first radio of 2013 features a new tube for the lineup here at kipgen.com. With a lot of help from Dave Schmarder and Jara Krysatec the EM80 radio schematic was developed and proved. And it really is a beautiful little magic eye tube that is an indicator of tuning signals. And that nice green light just begged for a green cabinet to show it off. So was born the Six-A-Gone project.
Cutting the 30 degree angles in the side panels accurately enough for perfect fits is a very difficult thing to do on a table saw or chop saw but after many trials and failures it was finally accomplished. But getting these angles glued together is an even larger challenge since the pieces really cannot be clamped and any attempt to get all 6 together at once is pure folly. But a system was finally adopted that worked and things moved forward.
The side panels are cabinet grade maple laminate and the top panel is fiddle-back maple. The tube tower is also constructed of the side panel materials and is topped with fiddle-back to match the top panel. Even the speaker grill hiding behind the tube tower is this same fiddle-back. All parts were stained, shaded and then finished with satin nitro lacquer.
The circuit is surprisingly different than the other magic eye sets I’ve managed to build. But it does use the same P-T442 transformer from Antique Electronics but this radio features a honeycomb coil I wound to 242µH using 180/46 Litz wire with the rest of the tank comprised of a standard 365pF variable capacitor. This set includes a more robust speaker that better handles the output of that small amp and it sounds just fine. I am very please with the performance of this new tube and schematic.