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Telephone Audio Coupler - DX1MK
http://dx1mk.org/blog-post/telephone-audio-coupler
Telephone Audio Coupler This circuit is a simple one, audio signal from the telephone line is sampled by the 600:600 ohm isolation transformer. The combination of 0.1uF/200V capacitor and 500 ohm resistor suppresses the high voltage present in the line during the ring signal.
Telephone Couplers - Walmart.com
https://www.walmart.com/c/kp/telephone-couplers
Telephone Couplers. 1 - 40 1 to 40 of 1,000+ products. Refine by | Top Brands. left hand navigation Skip to Search Results. Gifting. Gift eligible. Departments. Office Supplies. Office Technology; Delivery & Pickup. Show all . 2-day delivery . ... 1 x RCA Audio L+R, 1 x USB 2.0. 1 x 3.5mm, 1 x USB 2.0 ...
Amazon.com: telephone cord coupler
https://www.amazon.com/telephone-cord-coupler/s?k=telephone+cord+coupler
TCB-I Manual Telephone Coupler • BGS
https://www.bgs.cc/shop/telephone-audio/couplers/tcb-i-manual-telephone-coupler/
The Comrex TCB-1 Manual Telephone Coupler provides clean, transparent transformer connections from telephone lines to external audio equipment. State of the art circuits and rugged construction ensure highest quality and years of reliable service.
Amazon.com: phone coupler
https://www.amazon.com/phone-coupler/s?k=phone+coupler
Telephone Record Adaptors || VEC Electronics
http://veccorp.com/telephone-record-adaptors.html
Telephone HANDSET record coupler. Designed for PC sound card recording applications. Hard-wired 10 ft audio output cord with 3.5mm plug. TRX-20 Telephone record coupler with 3 ft. cord and 2.5mm or 3.5mm plug. Recommended for DIGITAL recorders with 2.5mm or 3.5mm mic jacks. TRX-50 Telephone record coupler with 6 ft. cord and 3.5mm plug.
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