[35, 45, 67, 41C, 85] free online books

[cdmackay]

There's a number of interesting free e-books here:

http://www.k100.biz/parade.htm

Relevant here is "The Great Hewlett-Packard", which has chapters on the 35, 45, 67, 41C & 85, as well as on other HP kit.

There are also interesting books on Tektronix 'scopes.

Apols if this is common knowledge; was new to me.