Hi Dan,
-
The W6SAI Handbook, the Heathkit Warrior, the
Collins 30L-1, various ARRL Handbooks and
QST Mags through the past decades.
-
Of course a few of the above mentioned can be
found on the http://sonic.ucdavis.edu Amateur
Radio Page.
-
I've seen a few of the other amps replies... my
only other "two cents" are to comment on
statements made in the Ameritron Mag Ads
about mounting 811a tubes horizontal.
-
There is a recommended axis for horizontal
811a mounting.
-
But the Ameritron Ad states/hints horizontal
mounting is bad news. At first glance, grid
sag damage might make sense... but I've
never heard or seen of an example of an
811a sag failure.
-
Furthermore, I trust the former Collins
Engineer(s) who designed and sent the
30L-1 design through to production. My 30
plus year aged 30L-1 has never had a bit
of trouble... still 100% original although I do
slow start the unit for the sake of the filter
caps.
-
I also believe neutralization is not required
for a typical 811a layout.
-
cheers
skipp
-
[snip]
--------- Forwarded message ----------
From: "Dan Evans K9ZF" <danlevans@msn.com>
Hi Folks,
Can anyone point out any good 811a amp designs on the web, or elsewhere?
I'm considering building an 811 based amp for a "beginner-amp-builder"
project. Basically, I'm just looking for something fairly simple, and
cheap, I can build and learn from. Besides, I probably have most of the
parts I need in the old junk box.
I am aware of a couple of designs on the ARRL's web site, but the newest
one
there I've found is 40 years old, there is bound to be some newer designs
out there:-)
And please, no flames from the anti-CB crowd. I have absolutely no
interest
in 11 meters, or any illegal operations.
Thanks,
Dan
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