11 Apr
1999
11 Apr
'99
4:34 a.m.
Upon the date 12:25 AM 4/11/99 +0100, Tony Duell said something like:
No. The flaming PSU resistors and active devices catch the rest as a result
of the fan being jammed and not cooling stuff :-)
Seriously, I've seen the result of that happening on some sort of
transmitter or test gear (I can't quite recall exactly from 20+ years ago.)
A gob of dust and paper chad which collected on a heat sink adjacent to the
PSU pass transistor after the cooling fan died a natural death (sleeve
bearings siezed) went to flames :(
So if the
purpose of the foam was to cpature the dust, what captured the
foam? (:
The rest of the machine?
-tony
Christian Fandt, Electronic/Electrical Historian
Jamestown, NY USA cfandt(a)netsync.net
Member of Antique Wireless Association
URL: http://www.ggw.org/awa