25-04-2012, 06:25 PM
Hi Lawrence, i like your..... local osc temperature compensator is basically two metal plates seperated by an air gap like a small pf capacitor, it is connected to the osc. circuit, fixed adjoining one of the plates is a high value resistor that is connected directly across HT, as this heats up it changes the capacitor value, simple but effective.....As long as your set is up to spec leave well alone. I tested the valves in mine they too came out good, so its the caps that are in need of changing, along with some of the resistors, i guess they must be out of spec by now, i have a good aerial strung between glass insulators quite high, i think a seperate earth would keep a lot of mush away too. It pulls in quite a good amount of stations but i feel it could go better, i use my trusted h.g. brown headphones, it gives it that old fashioned sound and feel, like it was years ago, also you can spot very faint stations...regards....Alan
