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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: Sub for 6SN7? posted by thefurster on September 27, 2004 at 14:09:42:
6BL7 is higher gm (and lower rp), lower mu tube. They both have the same pinouts, but when you put 6BL7 in the 6SN7 socket you can expect (depends of the circuit), say about 20-100% higher current through 6BL7, different Ua because of that, lower rp and lower amplification. Sometimes it`s not too important and you can do it, but in other circuits it IS important.
And "swap" can work only in this direction, don`t try to put 6SN7 in 6BL7 socket except you know the circuit and what you are doing.
And last, but not least - 6BL7 "pulls" 1,5A of heater current vs. 0,6A for the 6SN7.
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Follow Ups
- No. - Damir 05:22:05 09/28/04 (0)
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