Tag Archives: Oddity

I found magic eye tube in my closet. It was removed from sold old radio. This tubes were used in old radio units to indicate fine tuning of radio station. In old tape recorders such tubes indicated recording level. I … Continue reading →

For recycle, we received some “Medical computer” and inside I found this nice thing. The DIMM nearby is to compare the sizes. A small ring, or core, of ferrite (a ferromagnetic ceramic) can be magnetized in either of two opposite … Continue reading →

Resistor inserted into a circuit to compensate for current changes (as those arising from temperature fluctuations) [syn: ballast resistor] B-300-G by NEC and unknown Soviet made. Tube filled with pure hydrogen and thing iron wire inside. When iron wire is … Continue reading →

Among the stuff prepared for recycle I found some electrooptical device: Side view On one side there is objective-lens: MIR-1; 2.8/37: Front view The other side is covered with big lens: End view There is small high DC voltage source … Continue reading →

There was old stuff sales auction in some military base and our company acquired very old military radio equipments. All the stuff is the junk, but some details are interesting. Small view of all stuff High voltage, vacuum capacitors from … Continue reading →

I have new additions to my crystal oscillators collection. Now the collection looks like this: Quartz Crystal Clock oscillators These devices are not cheap ceramic oscillator, but real precision devices. I have one custom made crystal with paper documentation: The … Continue reading →