|
|
Hits: 1594 Replies: 1
Market introduction date 1953
|
|
Mark Hippenstiel
10.Apr.17 |
1
The series consists of:
Namely the 1AJ5, registered in August 1954, was on the market a year earlier already. Raytheon has advertised this series in the January / February 1953 issue of Communication Engineering and in the March 1953 issue of Tele-Tech & Electronic Industries (see attachment, same ad for both publications). The Tung-Sol Elekctric Inc data sheet for the tube is dated September 1, 1953. First sets appear end of 1953 e.g. with the Motorola HS-347 chassis. Obviously, the registration for 1AJ5 was late and has to be marked as erroneuos. In my opinion, it cannot be reliably used to determine the year of a model release. Kind regards, Attachments
|
Wolfgang Gebert
11.Apr.17 |
2
this ad was also published in Electronics, February 1953 p.33 |
Data Compliance | More Information |