Yes, another antiquity from Australian communications 50 years ago ... the type 801/802 telephones formed the core of all landline telecommunications for domestic and business users back in the 1970's - no mobile phones of any sort existed (not even the brick "in-car" phones such as the Mitsubishi or NEC "portable" telephones had been released yet)
This telephone component was made right here in Australia at the enormous sprawling facilities of STC down in Alexandria, Sydney - where all good telecommunications equipment used to be manufactured!
This bell ringer coil reminds me of the song "Ring My Bell" which is almost equally as ancient!
If you are not into the music but like old telecommunications technology ... read on
THOUGHTS & SOME "USEFUL" INFORMATION
While it is very unlikely that even a telecommunications collector may want this bell ringer coil, so it could be simply as part of a telco museum collection OR experiment with it - it is basically just an electromagnet with a single bar iron core.
This bell ringer coil is designed to operate with the application of an AC voltage, around 80V with a frequency in the region of 25Hz. You can apply this AC voltage directly to the bell coil.
STC TELEPHONE Bell Ringer Coil ONLY
Circa 1970's
This is a sub-assembly that sits and is secured inside the telephone case.
Not much to these sub-assemblies, just a 1700 Ohm coil (electromagnet) which was originally intended to operate a long rocking striker and two bell gongs - these additional components are NOT included here.
Designed for use with the type 801//802 subscriber telephones, this bell ringer coil was extracted from one of those telephone models.
Fully functional, there actually isn't much that can go wrong with these in any case. Bell coil (clearly marked STC) measures 1710 Ohm DC resistance.
Identification on the printed coil is
STC Logo
36-SU-11A
PBA-1 69
1700 Ω
COSMETIC CONDITION:
USED
Clean
NO pieces missing
This bell ringer coil (only) is now stored in a clear plastic sealed packet, to maintain the current condition.
