TV or music mute
The hookswitches in many 1A2 phones have more contacts then are needed for the phone to work. For example, some designs interrupt both the tip-side and ring-side of the phone line. One is enough for normal phone operation.
Check the schematic and connect the contacts of a spare switch to a spare wire pair. Use the switch closure to activate a relay (you'll need a power source, too) to disconenct the speakers in a TV or stereo system when the handset is picked up.
Check the schematic and connect the contacts of a spare switch to a spare wire pair. Use the switch closure to activate a relay (you'll need a power source, too) to disconenct the speakers in a TV or stereo system when the handset is picked up.
- Presidential phones
- frequent questions
- doing business
with us - customer comments
- why our phones
are better - How'd we get new old phones?
- Brand New Phones
- New Old Stock
- Rare & Special
- Nearly-New Phones
- Refurbished Phones
- Rough & Ready phones
- Red phones
- Pink phones
- very rare ORANGE phones
- Rotary-style Reproductions
- Antique Phone Reproductions
- phones with
ringing lights - our book store
- desk/table phones
- wall phones
- touchtone phones
- rotary-dial phones
- Princess phones
- Trimline (and similar) phones
- no-dial phones
- multi-line phones
- more retro stuff
- accessories
- fix, update, clean
- telephone parts
- installation supplies
- tools & testers
- old phone ads
- the phone makers
- phone colors & custom combos
- $14,000 phone rental!
- museums & clubs
- telephone terms
- weird phone gallery
- historical
- 1A2 phones & parts
- ComKey 416 phones & parts
- Merlin phones & parts
- Ancient telecom terminology
- Phone bottom markings
- "mechanical hold"
(not quite 1A2) - Same model number, different phone
- Why call it a "key" system?
