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Old 18th Mar 2017, 8:10 pm   #30
Sparks
Heptode
 
Join Date: Oct 2006
Location: Leeds, West Yorkshire, UK.
Posts: 593
Default Re: GPO Jack unit 1B

I decided to use a standalone handset and plug it into the 84a socket.

There is a resistor T5 and T6. I think it's 3.3K.

T6 and T7 strapped.

T20 and T19 wire linked.

T10, T11 and T12 strapped. T12 wire linked to T9.

T13 and T14 strapped. T13 wire linked to T17.

T16 and T17 strapped.

Line cord red to T8, white to T18, blue to T6 and green to
T15.

T8 to T9 and T18 to T19 straps removed. Two hook switches will go here instead.

Regulator 6B will fit between T11 and T17.

Obviously no guarantee this configuration will work for everyone !
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