CARLSEN ELECTRONICS

  ... a leader in trailing-edge technology

Commodore 64/128 repair articles, upgrades, and "hacks"... the main reason this site exists.
Schematic diagrams for Commodore monitors, computers, RAM expansion units, EPROM adaptors, etc.
  The abovc information is mirrored on http://staff.washington.edu/rrcc

The following is quite dated and now just a reminder of the recent past when consumer electronics devices were
repairable. I had been in the business of servicing consumer electronics (TV, VCR, audio, etc.) for over 40 years
and only recently quit doing that although I still repair Commodore computers and associated hardware.
And now, a bit of history....

Carlsen Electronics: who we are and what we do.
Free estimates,  "no fix - no charge", and more... about our policies.
About the owner... the mind of a technician, and a short biography.
When I can't fix your equipment... the reasons, and the general direction of the repair industry.
General electronics info: tips & tricks, repair articles.
Pet peeves... what it takes to get under my skin.