 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
In Reply to: Re: Opinions wanted on two drivers for LARGE swing posted by marnold on March 26, 2004 at 14:48:55:
>>The datasheet bandwidth for the LL1660 is for a source impedance of 15kohms.>>Hi Michael,
I assumed that meant "plate-to-plate", or in other words 7.5k max for each half - although they didn't mention that specifically and I could be wrong.I guess that's a question for the Lundahl forum.
Follow Ups:
Hi Joel,I think your take on the datasheet is most likely correct. So you would be sitting right around those values with the 6CG7/6SN7 as the driver. With the 6CG7 driving a pair of 12B4 you would probably be well under that figure. Just a thought. I'm using a Lundahl input as well so it is balanced, push-pull, differential, whatever the heck you would call it from the RCA jack on. Well, that is if it had an RCA jack yet.
What output transformer are you using?
Michael
> > What output transformer are you using?> >The Hammond 1650K, 3.4k primary. It's oversized for the task, but it has decent HF response, and was all I could afford right now.
The cathode followers will be biased at Ec -13v, Ib 36mA
If I can swing 115v of signal (cleanly that is...), the output stage will generate 5 watts into 8 ohms at under .05% distortion. Excellent damping factor of 17 too.Joel
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
