SIEMENS E81CC

Tubes Asylum

Questions about tubes and gear that glows. FAQ

I bought three of this on ebay for US$ 41, all have the double S above the brand, wich as I read in this forum, means they are older tripple mica, two have indeed 3 micas, but one only 2, and it does look a bit newer...
On the other hand, they measure as follows:
Tube 1: 24,0mA / ~120% + 23,8mA / ~119% ( Uba = 200V / -Ug = 0V )
Tube 2: 25,0mA / ~125% + 25,0mA / ~125% ( Uba = 200V / -Ug = 0V )
Tube 3: 25,0mA / ~125% + 24,5mA / ~123% ( Uba = 200V / -Ug = 0V )
Tube 3 is the 2 mica, shall I use 1 and 2, both triple mica, or 2 and 3, they measure better...
I am a beginer with tubes, of course I will test, but it is possible the sound difference is too small...
What do you suggest ?
Thanks,

Antonio Melo Ribeiro

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Topic - SIEMENS E81CC - Lowrider 00:56:27 04/15/07 (1)

Re: SIEMENS E81CC - Lowrider 01:56:34 04/17/07 (0)

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