The Trio CS-1560A triggered sweep oscilloscope
Boat anchor manual and schematic
I purchased my scope in 1983 when I was doing some real electronic
engineering and repair in the typesetting business. This was
hard to do without a scope, so I went out and bought one for myself to
use at work, in the hope that the boss would reimburse me, which off
course, he didnt. So he kept his money and I kept my scope,
which is just as well because it has performed flawlessly for 25 years
and built and repaired countless bits of electronics.
This scope was a popular model back then and was sold at a
price that a dedicated radio ham or electronics enthusiast could just
barely afford. The user manual which contains a very good
tutorial on the use of scopes also came with the complete schematic.
Its vertical bandwidth of 15Mhz, by no means spectacular, was in the
early eighties completely sufficient for hardware debugging of the
early microprocessor systems. The case of mine has sustained numerous
dings from airline luggage handlers that were probably using my luggage
for target practice. I dont think this manual has yet
appeared on any boat anchor sites yet.
This scope hasnt been commercially available now for many years but many
still labor away in teaching labs and schools. If you find one at a
hamfest do not hesitate to buy it, you will not be dissappointed.
I think it was amazingly good value for money back then, considering
the complexity and depth of the circuit. The circuit is also very
maintainable, their are no exotic components with the exception of the
CRT tube.
I have not prepared a mosiac of the circuit, print these sections out
and paste them together.
The only thing that they could have done better was to have the display
graticle closer to the CRT face, as it is the parallax is quite
objectionable when you a trying to actually measure something.
