I've been adding a fair bit of material to the ukhhsoc 'AudioDocs'
collection. Most recently I've been adding items on Radford and J. E.
Sugden.

People interested in power amplifier design may be particularly interested
in some items I added this morning. These are scans of a copy of the
notes/manuscript that Jim Sugden wrote and which appeared in 1970 as a
'Home Construction' design for a Class-A amplifier in Hi Fi News.

You can find these at

http://www.torrens.org.uk/ukhhsoc/ma...Amp/index.html

I was sent xeroxes by the JES company about a decade ago when I was writing
an article on Jim Sugden and Class-A. Jim Sugden has now given me
permission to make these scans available. The details differ from what
appeared in the magazine, so they make an interesting read. The only snag
is that the xeroxes aren't very clear. But the scans are readable.

I'll continue to add more items. At present the collection comes to well
over 1.5 GB worth, and I have lots more to add as 'round tuits' permit. :-)

If anyone has any printed documents - service / user manuals, circuit
diagrams, leaflets, etc, they'd be happy to loan/donate/scan, please let me
know. Note that I do still have many items which haven't yet appeared in
public. The main 'gaps' tend to be indicated by marques which are still
unlisted on http://www.torrens.org.uk/ukhhsoc/AudioDocs.html because that
usually indicates I have few or no documents they produced. But if unsure,
please ask! :-)

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html