6LB6's....

rsumperl · 17th October 2010, 11:20 PM

Greetings everyone,
Back into the chilly northern weather after a few days in Knoxville. Thank you Mark for the tour of the radio station and your hospitality.
Has anyone played wih 6LB6's yet? How were they biased and how were they loaded?

Thanks,
Ray

smoking-amp · 01:14 AM

6LB6 looks pretty similar spec-wise to 6HF5, 6JE6, 6JS6, 6LQ6, 6LZ6, 6LG6.
High current capable at 315 mA Max DC, I would guess 2.5K or 3.3K P-P would be ballpark, but higher Z certainly (using higher B+) possible if you don't want to use that current capability (the sweep tubes are very much rated to go HV if wanted). There is an excellent GE data sheet with curves to try out loadlines on.

http://scottbecker.net/tube/sheets/123/6/6LB6.pdf

A moderately expensive tube to buy replacements for though. $24 With no higher filament Volt versions available (cheaper).
6LG6 looks to be its slightly smaller brother, and only $4 (21LG6).

17th October 2010, 11:20 PM	#1
rsumperl diyAudio Member Join Date: Oct 2009 Location: Warren Center, PA	6LB6's.... Greetings everyone, Back into the chilly northern weather after a few days in Knoxville. Thank you Mark for the tour of the radio station and your hospitality. Has anyone played wih 6LB6's yet? How were they biased and how were they loaded? Thanks, Ray

18th October 2010, 01:03 AM	#2
smoking-amp diyAudio Member Join Date: Dec 2001 Location: Hickory, NC	6LB6 looks pretty similar spec-wise to 6HF5, 6JE6, 6JS6, 6LQ6, 6LZ6, 6LG6. High current capable at 315 mA Max DC, I would guess 2.5K or 3.3K P-P would be ballpark, but higher Z certainly (using higher B+) possible if you don't want to use that current capability (the sweep tubes are very much rated to go HV if wanted). There is an excellent GE data sheet with curves to try out loadlines on. http://scottbecker.net/tube/sheets/123/6/6LB6.pdf A moderately expensive tube to buy replacements for though. $24 With no higher filament Volt versions available (cheaper). 6LG6 looks to be its slightly smaller brother, and only $4 (21LG6). __________________ Ohms Law V = I R Last edited by smoking-amp; 18th October 2010 at 01:14 AM.

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