Monthly Archives: July 2011

This is quick and easy. All you need is: One bigger tin can One smaller tin – small enough to fit inside the big one without touching the side two short pieces of wire a sandpaper a soldering iron Wash … Continue reading →

An old vacuum rectifier. Filament: 5 volts @ 4 amperes, Peak inverse plate voltage: 20,000 volts. This version has uranium glass seals around the pins. (Greenish glass ) Uranium glass is also known as “Vaseline glass”. It is made by … Continue reading →

Another beauty. Model 432 No. 13661. Weston made several versions of this meter with different full scale and voltage/amperage ratings. On the left are terminals for 75 volts and 150 volts. On the right are terminals for up to 30 … Continue reading →

One of my favorite pieces of equipment. Unbelievably well made. It’s fairly big; approx. 23 cm wide, 18 cm tall and 15 cm deep.You can use it as a 0.05-1.1 pf or 0.5-11 pf variable depending on which of the … Continue reading →