Thread: Incorrect bell?
View Single Post
Old 29th May 2019, 11:53 am   #12
Dave Moll
Dekatron
 
Dave Moll's Avatar
 
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,118
Default Re: Incorrect bell?

One part of Joe's circuit which you ought to include with anything beyond a replacement bell is the opto-isolator (IC1). It may be simpler, as I said previously, to replace the bell, either with a small bell internally - there are ones produced that are used to add a bell to telephones, such as GPO 232, which don't have an internal bell, but I can't find anything for sale currently - or use a separate plug-in bell/ringer, which is available for about £5.
__________________
Mending is better than Ending (cf Brave New World by Aldous Huxley)
Dave Moll is online now