These are papers, notes, manuals and a few links I've found interesting, humorous or even useful. Most are quite old, but there's still something to learn from each one. Not really wanting to host a library, they're here because they're difficult or impossible to find elsewhere, or I had a better quality copy. I also have quite a few General Radio Corp. manuals that are unavailable anywhere else. If you've exhausted all other sources (IET, BAMA and others), send me an email (first page of this site, Us) and I'll check my list.
Henry Hall's Paper on Dielectric Absorption
Sprague Cap Tech Paper TP-64-11
Sprague Cap Tech Paper TP-65-10
Motorola Darlington Amp App Note AN-483B
Motorola Power Amp App Note AN485
Varian link to BOMAC Radar Cartoons & good stuff!
1956 National Radio-TV News on audio amps
1951 Vol. 21-6-7-8 Aerovox Metallized Paper Capacitors
Ace Audio preamp RIAA stage, 1970s
Link to all the great GR papers at IET Labs
M.F. Agha Photo Oath from U.S. Camera
Practical Densitometry Kodak E-59
A couple pages on bellows-making from the 1941 book How to Make Your Own Photographic Equipment
Lapmaster planetary lapping machine manual, 12C, 15C and 20
Optoelectronics UTC8030 Frequency Counter User Information & Service Manual (34 pg, 7 MB)
Nicolet Balancing Application Note (6.8 MB)
Everything I have on the Leader LSG-231 FM generator (22 MB zip)