Early solid state rectifier. See also at "Tr.Gl.=Metal-rectif", if uncertain which type. It might also be a copper oxide type.
Text in other
languages (may
differ)
Selenium-Rectifier: Röhrensammlung
Wolfgang Bauer
Selenium-Rectifier: Amaterska radiotechnika,Praha 1954
Josef Smitka
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 150
Selenium-Rectifier*Box
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]