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Keritech Snail Mail: Resistors and Relays

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Vintage mailbag time again! NOS R15 4PDT industrial relays for an upcoming project, and an absolutely beautiful resistor decade box made by Ulrich, probably 1940s/50s, but in a damaged condition. This is gonna make a restoration project... after I get proper resistors for it.

0:00 Intro

1:11 First Package
2:35 Lumel R15 4PDT
3:35 Upcoming Matrix Switcher Project
5:35 3U Rack Enclosure
8:00 Relay Layout
10:15 1978!
11:10 Second Box
12:00 Ulrich Decade Resistor
12:55 Possible Origins
13:40 Disassembly
19:32 Faceplate Lifting
20:23 The Switches
23:!5 Digging Deeper!
24:30 The Guts
25:40 Raansacked
28:17 So Much Copper!
30:17 Measuring
33:15 Where It Fails
36:20 Afterword

Support me on my Patreon page at https://www.patreon.com/KeritechElectronics or via PayPal https://paypal.me/keritech

Instagram - https://www.instagram.com/KeriSzafir
Hackaday - https://hackaday.io/keritech

#ElectronicsCreators #Keritech #Electronics

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