gibosi
Headphoneus Supremus
- Joined
- Oct 18, 2012
- Posts
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I had a few packages arrive in the mail today:
1680, a special IBM version of the 6BE6, manufactured between 1949 and 1956. The third grid was changed from remote cut-off, normal for the 6BE6, to sharp cut-off. In a sense, one could see these as the prototype for the later 6BY6. As this was made by RCA (274), I will be directly comparing it to a pair of RCA 5915/6BY6. AFB first found these tubes, and as they were very cheap, decided to get a pair and see how they sound. Burning in as I type this...
Telefunken EH900S = 5915/6BY6
And as a number of posters have been very positive about their EK90s with saucer getters and shiny, sharp pointed pins, decided to try a pair. These were relabeled by Ultron and cheap. Those of you who have these tubes, do these look like the ones you have?
1680, a special IBM version of the 6BE6, manufactured between 1949 and 1956. The third grid was changed from remote cut-off, normal for the 6BE6, to sharp cut-off. In a sense, one could see these as the prototype for the later 6BY6. As this was made by RCA (274), I will be directly comparing it to a pair of RCA 5915/6BY6. AFB first found these tubes, and as they were very cheap, decided to get a pair and see how they sound. Burning in as I type this...
Telefunken EH900S = 5915/6BY6
And as a number of posters have been very positive about their EK90s with saucer getters and shiny, sharp pointed pins, decided to try a pair. These were relabeled by Ultron and cheap. Those of you who have these tubes, do these look like the ones you have?