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Old 4th May 2020, 5:16 pm   #7
ex 2 Base
Heptode
 
Join Date: Nov 2009
Location: Scarborough, North Yorkshire, UK.
Posts: 510
Default Re: Repairing old butler bell box (annunciator).

Some of these old bell indicator boards in stately homes and vicarages worked via several Leclance cells (Might have got the spelling wrong) anyway, in square glass jars with zinc anode. We used to scrape the anode with a pocket knife to get them going again. Would look good working with a few of them in place. The railways had lots in cabinets below the signal boxes.
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