On Apr 27, 2012, at 3:10 PM, Tony Duell wrote:
I always find looking at the manuals to be
instructive. The manual for a
modern radio tuner I looked at had many pages on how to use the
controls. And that was it. The manual for my old tuner has 1 page on how
to connected it up and how to use the single control (RF tuning). It then
has a dozen pages on how to align the thing (which requries a calibrated
signal generator and a double-beam 'scope). Follwed by parts lists,
chassis photographs showing the position of all the components, and, of
course, a scheamtic.
...which nearly nobody cares about nowadays.
I'm not saying this is a good thing, but it's a fact. There'd be no
point in printing all that stuff for the 0.5% of their customer bases
who would want it.
I do wonder hoe many purchasers back in the 1960s (when this tuner was
made) had, or had access to, a double-beam 'socpe, an
accurately-calibrated signal generaotr, etc. MY guess is very few. But
the information was there anyway.
Consumers, no, but if you brought it to an appliance repair shop, they'd
probably like to have schematics. They probably wouldn't be shelling
out for a service manual for every consumer tuner model under the sun.
Of course nowadays, we just throw it away when it doesn't work.
- Dave