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  1. Alpha2

    Link Ring Trip Circuit Ommission

    Folks, While browsing through my collection of Link circuits online the other day, I noticed an ommission of the Ring Trip cct on the Link A2B+1 DTMF design. Shown below the main cct is the RT cct, composed of the relay RTR/2 a diode and the AC voltage source (between 30 and 40 VAC is usually OK...
  2. Alpha2

    New Link Updates online some time soon

    Hi folks, It's been a while since I last posted to all you hyperboreans out there in telephone land, but nevertheless, I've been tinkering (read 'Linkering') at my workbench and I've got 2 new link designs to share with you some time soon. The first one has been designated the "Link P" and the...
  3. Alpha2

    Notes on the Link intercom

    Some extra notes for those attempting to build the Link intercom: 1. Best to build it up on your SK-10 panels to ensure that all parts are working, before you go soldering them to a board. 2. Adjust R6 by making a call, then taking the called party's handset off hook - adjust R6 until the ring...
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