25 Oct
2002
25 Oct
'02
6:19 p.m.
Paul Winkler wrote:
On Thu, Oct 24, 2002 at 05:31:04PM +0100, Steve Harris
wrote:
an introduction to their basic operation is here:
http://www.eecs.umich.edu/~mmccorq/tubes/introduction/introduction.html
starts with 'what is a tube' and ends up having handled
almost everything i find inside my super 60.
tim
On Thu, Oct 24, 2002 at 08:23:32 -0700, Paul
Winkler wrote:
I'm looking at a schematic for an 18-watt marshall at the moment...
there's a cap between the input gain tube and ground which *might*
be a HPF, but I don't really grok tube circuits well enough to be sure. On Thu, Oct 24, 2002 at 08:41:36AM +0100, Steve
Harris wrote:
Could be. Aparently there is often HP filters insode amps to strop the low
freqs dominating though. Looking at the scope traces from that guys site
(which I will read later
today), there is some fairly serious HP filtering going on sometime after
one of the amp stages.
Output transformer? Certainly they don't have infinite response...
It's not clear to me where and how those scope shots were taken.