View Single Post
Old 31st Dec 2020, 12:05 pm   #4
Dave Moll
Dekatron
 
Dave Moll's Avatar
 
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 5,459
Default Re: Connecting U43 to an Electric Bell

Quote:
Originally Posted by Xyience View Post
Would the bellset/bell from a junked GPO phone work with the U43? These seem easy to come by.
That sounds like a much better option. You could always use the DC bell as a doorbell.

Quote:
Originally Posted by Xyience View Post
The diodes are instead of a No 205 rectifier as suggested by https://www.britishtelephones.com/tranchan.htm

Phones are entirely new to me, and I didn't want to blast my families hearing, so I went with the instruction.
After posting, I did wonder whether this was what you meant. The way these work is by only conducting above a certain level of signal so that they don't conduct at speech level but the higher-voltage spikes caused by switching are shorted out to prevent "acoustic shock" (loud clicks in the earpiece).
__________________
Mending is better than Ending (cf Brave New World by Aldous Huxley)
Dave Moll is offline