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Old 11th Jun 2021, 3:02 pm   #14
Dave Moll
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Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 5,423
Default Re: "Duck" telephone

Good news and bad news.

The good news is that I have indeed found an identical microphone from the handset of a dead Duet 200 telephone - and the problem of the buzz is solved.

The bad news is that I now have a new problem to track down. I must have disturbed something else, as the duck has lost its "quack". There is neither sound nor flashing eyes on an incoming call. These were both working before.

Edit: ignore the above sentence. What I had disturbed was the "ringer on/off" switch. Unfortunately, in the "on" position I now get a continuous "quack, quack, quack ..." while the 'phone is on-hook - the equivalent of the continous ringing that can occur if A and B legs are transposed on a three-wire connection. Only this uses a two-wire connection.
Mending is better than Ending (cf Brave New World by Aldous Huxley)

Last edited by Dave Moll; 11th Jun 2021 at 3:11 pm.
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