|This set came
about when I was looking for something to build as an entry in a local
crystal set contest. Since I always wanted to build a double
slider set, I thought this would be a good time to put some of the
parts I was collecting to use.
The hardest parts to find for this set are the slider assemblies. These came from Gary Schneider at Play Things of Past. They fit standard 1/4 inch square brass stock. All of the metal parts are made of brass which I nickel plated.
The crystal detector is a CARCO style that I use in other sets.
The coil is wound with about 125 turns of # 24 dark enameled wire on a 2 1/4 inch diameter by 5 1/2 inch long phenolic form.
The end blocks are paper and epoxy laminate.
.002 mfd. capacitor is mounted inside the coil form on the back of the
front panel block. In my version, the anode and cathode of the
detector is reversed as compared to the diagram. This allowed me
to better locate the detector parts. I wanted to end up with the
crystal holder in the exact center. Reversing the polarity has no
effect on the performance.
of the crystal detector and vintage binding posts. The two on the
bottom are the ground and headphone return connections. The
middle left is the antenna and the middle right is the other headphone
is a very simple crystal set and the performance is rather
poor as expected. However, I still like this
set. I think it has a simple elegance about it that represents
the crystal sets of the 1920's very well.