02-12-2015, 05:35 PM
(01-12-2015, 06:38 PM)Joe Wrote: 'Freddy Got Fingered' is a lousy film but has a damned good sound-track.
— Joe
I thought The Beach had a pretty good soundtrack. That was the movie with Leonardo DiCaprio. It was a great film as well.
As I seem to be in an incredibly lazy state of mind and physically sluggish (partly due to the weather), most of my radio work now is theory. Someone gave me a very early Radio Engineer's book that was first published in The Thirties. It shows a lot of illustrations of 120 volt accumulator batteries and tubes like pepper pots on radios. I figured it would do no harm to get new perspectives by starting even at some of the beginning chapters. Sometimes one explanation can give perspectives others didn't.
The chapter I was on last night had me up a bit late. It was kind of fascinating. Back in the early Forties it seems Radio Engineers would use a Milliameter with a full scale deflection of 5 Milliamps. It then turns out they used shunt resistors to produce readings up to 2 amps in the circuit but with the meter still only passing 5 Milliamps. It even tells you how to make the shunt resistors. I mean, back then there was no cheap East Asian meters to buy in a local Wilko store for a fiver. Even the 5 Milliamp meter cost 30 Shillings.
I got out my calculator and then my troubles began. Trying to work out the shunt resistances at a deflection of 5 Milliamps to get readings up to 2 amps.
I might try and get my hands on the other classic Radio Engineers Vest Pocket Book as well.
