09-02-2014, 04:37 PM
The selenium elements were not solderable either, they came as bolted assembles with solder lugs,
https://en.m.wikipedia.org/wiki/Selenium_rectifier
or in flat boxes with compartmentalized inside plastic spring loaded holders, that held serialized elements.
http://www.bakersfieldads.net/Algoso-/E2...50C250.JSP
http://oldradio.onego.ru/COMPS/selen_abc.jpg
https://en.m.wikipedia.org/wiki/Selenium_rectifier
or in flat boxes with compartmentalized inside plastic spring loaded holders, that held serialized elements.
http://www.bakersfieldads.net/Algoso-/E2...50C250.JSP
http://oldradio.onego.ru/COMPS/selen_abc.jpg