On Jul 12, 11:28*pm, flipper wrote:
On Sat, 12 Jul 2008 07:02:27 -0700 (PDT), bigwig
wrote:
Hello,
*Im new to the group. Has anyone built an amp. with or played with 5B
255M?. I have a load of these valves and would like to put them to
use. The curves seem the same as the 807/6L6 types. I would like to
know if anyone has had any experience with them before I go and build
something. I was thinking PPP class AB1 ultralinear.
*Thanks Matt.
Well, Brimar said it's electrically similar to the 807.
http://www.mif.pg.gda.pl/homepages/f.../5/5B-254M.pdf
The STC data sheet is more comprehensive
http://www.mif.pg.gda.pl/homepages/f...0/5/5B254G.pdf
*(612k)
RCA 807 for comparison.
http://www.mif.pg.gda.pl/homepages/f.../084/8/807.pdf
(1.7Meg)
Ok great thanks guys,
I have a few 7N7s so I think I will build something along the lines
of a Williamson. Should look nice with all Loktal valves. PPP output
stage, 3.3K output transformer.
Thanks for your help with the datasheets.
Matt.