Quote:
Originally Posted by Neil Purling
Is the low capacitor value because it is immediately after the rectifier?
I assumed the HT circuit was R-C smoothed as I could not see a four-wire cable bundle going to the speaker.
I take it that they did not have good enough permanent magnets to get the required field density or they would have made the speaker immensely heavy.
The L-C smoothing using the field coil as a choke is more effective?
I am very interested in the radio circuit: I am just wondering how many stages are in there & if the detector also employs controlled positive feedback.
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Unfortunately I haven't got any pictures of the underside of the chassis. Its tricky to get to being screwed into the wooden frame with the power supply directly above it. Much of the wiring is original and I decided to let sleeping dogs lie.....