In Reply to: Siemens E88CC codes. posted by Halo88 on July 8, 2012 at 16:05:58:
For the first tube, the code A4 9G signifies Siemens, Munich July 1969 production. The first digit in the second line represents the year of production (in this case 9 = 1969) and the second digit represents the month (in this case G = 7th month = July). The first digit A in the first line represents the Siemens code for E88CC tubes and the second digit represents the revision of E88CC (4th revision in this case).
The second tube is a 6th revision E88CC tube made in November 1972 and likewise the third tube is a 6th revision made in August 1972. Hope this information clears up any confusion.
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Topic - Siemens E88CC codes. - Halo88 16:05:58 07/08/12 (4)Follow Ups
- Information inside .... - XLR8OR 06:19:17 07/10/12 (0)