Dave_s wrote:
Hi,

My favorite old TEK 475 Scope has suddenly stopped working.
Symptoms a
No trace, screen is blank, intensity and focus control do nothing.
Beam Finder shows a dim small circle middle of screen.
When power is turned off, circle like BEAM FINDER same size is
visble
and bright
for a breif moment.
Panel LEDS are lighted and do respond to switches being changed.
Screen graticule cannot be seen.

Any suggestions are welcome. I currently do not have an adequate
service manual,
just module layout and parts list. I am looking but cannot find the
TEKTRONIX
scope forum.
Thanks for any help. Dave_s

Hi Dave,

contact me via PM at and I send you a scan of the 475
serv. manual free.

hth,
Andreas