Quote:
Originally Posted by Station X
Quote:
Originally Posted by its ur aerial
I have a vague recollection, the large `beer can size` 1.5 volt battery you refer too was, in fact PP1,  several of them were connected in series to run Intruder Alarms.
Ken G6HZG |
I think you're referring to a flag cell. Used to operate the "flags" on a servant bell board. |
I always wondered why they were called flag cells, we had several in our physics lab at school to power electrical experiments back in the early 70's thanks for the answer