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In Reply to: RE: Not absolutely true. posted by tango4@telia.com on July 12, 2012 at 11:32:02:
Both tubes are genuine Telefunken.
Pic 1. On the left an ECC81 from 1955, on the right from 1952
Pic 2. Datecodes B.bf.01 and B.ur.01 june 1955 and august 1952
Pic 3. Diamond on the left tube, no diamond on the right tube.
Note the square getter on th 1952 tube
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Follow Ups
- RE: Not absolutely true. - tango4@telia.com 05:31:44 07/13/12 (2)
- RE: Not absolutely true. - tango4@telia.com 05:33:15 07/13/12 (1)
- RE: Not absolutely true. - tango4@telia.com 05:34:31 07/13/12 (0)