UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Sparks · 18th May 2020, 8:05 am

The switch contacts are clean as a whistle and all fully functional. The T19 aspect is puzzling me. How does this terminal connect to pin 4 on the ASTIC ? I assume there must be an indirect route because, as I noted upthread, the only direct connection to T19 is a green wire going to a capacitor.

18th May 2020, 8:05 am	#49
Sparks Heptode Join Date: Oct 2006 Location: Leeds, West Yorkshire, UK. Posts: 597	Re: Quiet or no dial tone in a GPO 706 The switch contacts are clean as a whistle and all fully functional. The T19 aspect is puzzling me. How does this terminal connect to pin 4 on the ASTIC ? I assume there must be an indirect route because, as I noted upthread, the only direct connection to T19 is a green wire going to a capacitor.