[MZip]

Hopefully it’s the right place for this. Please (re)move if necessary.

A friend’s grandfather had a 40-81 portable radio he asked me to get running. Did the typical replace caps and brittle wires and got it working. Sounds amazingly good, really. Part of that was building a battery box to hold the A and B supplies.

Anyway, the battery box needed a cover so decided to make some in the style of the old batteries. A little massaging of the designs was involved (not 100% accurate but fairly close). These are 3D printed to fit the compartmented box I also printed that holds the batteries. For those that care, I used PETG for the box and its bits for heat tolerance near the tubes (which don’t seem to get too hot at all) but PLA for the cover plates for easy printing of the designs.

I knew nothing about tubes when I started and had some missteps. I get the radio back this week to mod the filament supply a little. Will post more about what worked and didn’t, etc.

Anyway, for whatever it’s worth. They snazz up a battery project. My friend only wanted a personalized cover plate. These were extra for fun. The high voltage Philco isn’t historical. It was just in the style my friend wanted but personalized and looked ok.