Hello, today I admired some artifacts from the Soviet era and wanted to share them with the community. This post will not contain technical analysis or historical references, just pictures for the curious and my comments. So I'm publishing it in the 'attic'. (Caution, around 40 Mb of images!)
Electric connector
According to legend, it comes from the brother of 'Burana' — 'Buri'. Note that the wire is encased in a brown compound, a plastic cover can be seen along with a filling hole.
The accuracy and neatness of the inscription is surprising. I wonder how it was applied, stencil? Stamp?
The connector joins by rotating a ring with three grooves.
The pins that fit into the grooves of the ring are pressed and flared from the inside, made of a different metal. Metal contacts exit from a soft sealing gasket.
It looks very high-tech and cool, it snaps together precisely, especially after cleaning. But the ring is not very grippy, you need to work with gloves, then it connects perfectly.
Button
According to legend, this is the 'button from a helicopter'. I should note that all these pieces came to me a long time ago in childhood and I cannot vouch for the accuracy of the description. The button is not a switch, meaning it does not latch in the pressed position. The green ring is a light collector.
Milliammeter
Marked up to 100 mA, '73 year. The front panel is made of ebonite.
The case is cast from light plastic, surrounded by a metal shield.
Voltmeter
Similar to the previous one, but the glass has been frosted.
The case has a slightly different design, a viewing window can be seen at the back, sealed with possibly plexiglass. I wonder what it’s for?
Voltmeter 30 V
Like the previous two devices, it has a slot for adjusting balance with a flat screwdriver. But this device also has a second needle, rigidly connected to the upper 'screw'. Apparently, to indicate the optimal voltage in the system.
Notably, the case is cast! It only opens from the flat back cover. There is an unclear plastic cap at the bottom back.
Between the terminals, it’s scratched:
If you liked the format and exhibits, I would be happy to take more photos.
Source: habr.com
