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Vintage telephone circuit tester
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8th Apr 2021, 12:12 pm
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Dave Moll
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Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,118
Re: Vintage telephone circuit tester
Ah yes, the AT5422. They're fairly comprehensive in terms of the characteristics they test. By the way, I already have one.
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