[sdiy] Lots of tube books etc - public domain

[cheater cheater]

Hi guys,
I have been looking for Zucconi's book "Probes" (about, yes, test
probes) and I have chanced upon this link:
http://www.pmillett.com/tubebooks/

According to the owner of the page, all those books are not copyrighted anymore.

Here's a list of contents:
* NEW 8/1/10 - Technical books -  Full image scans of old technical
books related to tube audio, radio, and pre-silicon electrical
engineering and technology
* NEW 8/1/10 - Vintage audio info and articles - Everything but books:
magazine articles, schematics, catalogs, brochures...
* McIntosh service data - Schematics and other service data for
classic McIntosh products
* Transformer data and schematics from Tango, UTC, Thordarson,
Acrosound, Chicago...
* NEW 8/1/10 - Tube Data, including some data from RCA, Western
Electric, GE, Tung-Sol, etc.
* RCA HB-3 Tube Data Manual
* 1951 and 1959 Sylvania tube manual

I must say I'm impressed. All available for free. The guy has done a great job!

Hope you guys enjoy it as much as I do

Cheers,
D.