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pmkap 22nd August 2002 04:19 AM

Vademecum nomenclature
Someone kindly sent me a copy of a page from the Vademecum (the European tube 'Bible'?) on a specific tube I'm interested in. For tube equivalents it listed equivalents as Slm = Tube and/or SFR = Tube
Could someone with more familiarity with this book tell me the meanings of these abbreviations?

Thanks in advance

fdegrove 22nd August 2002 04:22 PM


I don't have the book handy here but from what I recall it meant
SIM = simular meaning electrical equivalent.
SFR = simular but with different internal pinout.
Check with what the other guys have to say but I'm sure it was something like that.
Hang on to that book though,it's a gem.


pmkap 27th August 2002 09:17 PM


Sincere thanks. I just got back into town (returning my overindulged son to University) and saw your response. Unfortuneately, I don't have the Vanemucum, but rather, I was sent a copy of one page. From its context, I'd assumed those were the meanings, but purposely left my suspicions out so not to prejudice any response.

Many thanks,

fdegrove 27th August 2002 10:16 PM

Hi Paul,

Cross check it though,I was second guessing.I'l have all I need handy pretty soon.
Glad to help,

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