Re: "Duck" telephone
I regret that my elation at getting this working has been short-lived. Having tidied up the wiring around the "hook" switch (removing the excess bare ends to the wires which were providing opportunity for them to short against each other and resoldering more neatly), with the 'phone now in full working order, I screwed the innards back into the body. The next time I rang it up and went off-hook, I was treated to a bust of buzzing even louder than the original followed by silence (no response to sound) from the transmitter insert. It would appear that the replacement has died. I have checked its wiring and everything appears to be solid.
I am setting this aside for the time being.
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Mending is better than Ending (cf Brave New World by Aldous Huxley)
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