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Original Message
CCa Siemens Identification (with actual photos)
Posted by beto1 on February 12, 2021 at 14:49:41:
Hi everyone,
I need to determinate the manufacturing place/year of this Siemens CCa. Having exhausted my typical sources of information, I still cannot determine.
Useless is data codes from:
http://www.audiotubes.com/mullcode.htm
Or from:
https://www.tubemuseum.org/SearchResults.asp?Cat=24
The codes are on metal tag factory(see photographs):
A4
8J
On glass: 09029
Can anyone help?
Thanks in advance.