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Old 2nd Oct 2017, 8:16 pm   #2
russell_w_b
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Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
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Default Re: Ericsson 1071 wiring advice

Hello Jake and welcome to the forum.

The N1071 has the same innards as the 332 instrument and is connected the same way. If your instrument works without a 3k3 resistor in series with the bell, just leave it with a solid link between terminals 11 and 12. A 3k3 resistor may be needed (as shown) if your telephone doesn't ring properly or draws sufficient ringing current that other instruments on your line don't ring properly.

I have an N1071 in the hall, and have had it years without problem. Mine was on an internal PAX system installed in about 1954 and I salvaged it in '84.

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Russell W. B.
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