- 2025
- Apr
- 28
A Tricraft Products Corp SM-101 Filament Checker
I picked this little gadget up at the ACARA hamfest. Not because I plan on using it, but because it’s an unusual little thing and had a brand new book with it.
It’s a rather unassuming box with a number on the side.
What’s inside is this little gadget, a power cord, and a book. The gadget:
It claims to be a Tricraft Products Corp SM-101 Filament Checker. I’m not sure how it works because there’s no instructions for the device. It appears to be used, but only very little. I can see some wiping on the contacts. The power cord was unrolled and rolled back up with bread ties.
I can’t imagine this was terribly useful, your VOM would have been quicker than getting out a power cord and plugging all kinds of little pins together in an attempt see if the filament was good.
The real gem is the book. The RCA Tube Manual RC-19 from 1959. It appears to be unused, if a little dirty.
That’s worth the few dollars I paid for it right there. The other piece? A cool gimmick gadget for display.