improvised SB-993/GT or TA-312/PT repurposed ringer clapper bell. TA-312/PT use

Description

This listing is for the ONE bell/ringer only:  Ringer/Bell: light or dark colored.  The combined  bell and the Generator G25A/PT or SB-993/GT lamp module is
not part of this listing
-- for illustration only, however both can be purchased in an other
listing
of mine.
Note:
The yellow varnish (MFP)on some may by a little thick and appears dirty, but it isn't: MFP varnish is "Moisture and Fungus Proofing. This was directed by the GENERAL GUIDELINES FOR ELECTRONICS as outlined in the DEPARTMENT OF DEFENSE HANDBOOK EQUIPMENT MIL-HDBK-454B 15
Use with SB-993/GT Switchboard
.
If you are using the
modules for switchboard or signaling purposes,  you might consider a ringer
I recently acquired from the Remote Units  AN/GR-6's.  This  ringer can be used in
conjunction with a module and stacked on another module.  When the bottom
module is signaled the light will flicker and
the ringer will Ring
.  Very Useful
when some network circuits are high priority and the ringing will alert the
the operator in the event the light flicker is missed.
I have not listed both the ringer and the module together yet.  I will do it soon.
This listing is for the ringer only
.  Let me know if you also need the module.  If you already have an SB-993/GT, just use one of the modules for the ringer and stack it on top of your higher priority circuits that will also ring with the light flicker signal..  Buy more than one for other users in the SB-993/GT network system.
Ringer is a pull from a new C-434/GRC  Local Control unit from the Signal Corps AN/GRA-6
(part of the Receiver-Transmitter Control Group consists of the local C-434/GRC  and remote C-433/GRC - both units have the Generator G25A/PT)
Note: The yellow varnish (MFP)on some may by a little thick and appears dirty, but it isn't:  MFP varnish is "Moisture and Fungus  Proofing.
This was directed by the GENERAL GUIDELINES FOR ELECTRONICS as outlined in the
DEPARTMENT OF DEFENSE HANDBOOK EQUIPMENT  MIL-HDBK-454B 15
This listing is for the ONE bell only: a light colored Ringer/Bell: light or dark colored.  The combined  bell and the Generator G25A/PT is not part of this listing -- for illustration only, however both can be purchased in an other of my listing.
There's no mounting hardware for this.  There is space if you take the original buzzer out of it, assuming it's defectives.
It is very possible to substitute this .00 ringer/bell for the Buzzer Bz-23/PT, which sells on EBAY for over 50.00 and higher' on the TA-312/PT and the TA-43/PT field telephones.  It is an improvisation process through a  "do it yourself"  method, for lack of a better word.
If you substitute this ringer in the space of the buzzer bz-23/PT,  just don't allow metal contact to any part of the chassis to prevent the signal voltage from grounding it.  Just connect the original black and red (some are red/white) wires off the TA-312's CU-350/PT (large silver square box) to the two wires   of the  ringer bell.  Sound is audibly loud enough to hear. However there will be no method of adjusting the volume as there is no volume control knob.  As far as anchoring the bell to the internal chassis,  you will again have to improvise some method.  Or extend the two wires of the CPU 350 silver box out through the side where the BZ-23 was screwed on before and use it loosely exterior to the TA-312.  Bottom line:  there's no exact method.   I'M TEMPTED TO REMOVE THIS RINGER ALL TOGETHER FROM MY LISTING, but I have sold many without encountering any complaints because it can obviously be used in a modified process or repurposed for other uses.
Buzzer  ringer bells pulled from new AN/GRA-6 remote units.  Ringer Bells  will "clang" like the typical old black landline telephones.
As one of the photos depict, they work with the 20hz 90 pulsating voltage G-42A/PT from the TA-312/PT  hand crank generators or the hand crank generators from the AN/GRC-6 Remote units.
Dimensions i approximately 2 1/2 inches diameter.  The "clanger" is a metal rod protruding back and forth centered inside in the copper
coil that hits the round concentric metal round unit.