DEC H742a Power Supply
SHARE |
|
|
by Bill Degnan - 10/12/2012 20:54 |
|
Did not find anything wrong with the H744 H745, H744. I have a few spares. I have returned to the H742a, to check the power supply control board, responsible for 15+V
Took pics of the inside components so I can see under high magnification for obvious issues. Dirty but intact. Manual for parts is here http://bitsavers.trailin...rawings_Rev_P_Jun74.pdf h742a pic 1 h742a pic 2 Reply |
|
Resources:
Popular Topics and FAQs
Past Issues:
Before we switched over to a blog format, past page archives here:
Vintage Computer Festival East 3.0 June 2006
Commodore B Series Prototypes July 2006
VOLSCAN - The first desktop computer with a GUI? Oct 2006
ROBOTS! - Will Robots Take Over? Nov 2006
Magnavox Mystery - a Computer, or? Jan 2007
The 1973 Williams Paddle Ball Arcade Computer Game Feb 2007
The Sperry UNIVAC 1219 Military Computer May 2007
VCF East 2007 - PET 30th Anniversary June/July 2007
The Electronic Brain August 2007
Community Memory and The People's Computer Company October 2007
Charles Babbage's Calculating Machine December 2007
Vintage Computing - A 1983 Perspective February 2008
Laptops and Portables May 2008
From Giant Brains to Hobby Computers - 1957 to 1977 August 2008
Historic Computer Magazines November 2008
World's Smallest Electronic Brain - Simon (1950) December 2008 - Feb 2009
Free Program Listings Spring 2009
Computer Music Summer 2009
Popular Electronics Jan/Feb 1975 - Altair 8800 Fall 2009
Early Microcomputer Mass Storage Summer 2010
PC 7100 DOS211 bootscr
This image was selected at random from the archive. Click image for more photos and files from this set.