On Thu, 10 Feb 2011 00:41:24 +0000 (UTC), David Lesher
wrote:
Jim Thompson writes:
The house has only 3-pair, but if I keep careful track of the wiring,
this will work:
TIP1-----------o------------------o
| |
RINGER1 PHONE1
| |
RING1----------)------------------o
|
|
|
TIP2-----------)------o-----------o
| | |
| RINGER2 PHONE2
| | |
RING2----------)------)-----------o
| |
| |
| |
TIP3-----------o------)-----------o
| |
FROM BLOCKERS | NO PHONE LINE CONNECTION OR PHONE
| |
RING3-----------------o-----------o
Fail....I bet.
Why not just leave the ringers on the third pair? You can either
use one side to ground, or bias: a ringer [not a tweedledeedle,
a ringer..] can be set so DC bias one polarity to inhibit it
from ringing. Pick up a Lorain Products Sub_Cycle to make the
20 Hz. you'll need.
Naaaah! That works. Trace it out.
...Jim Thompson
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