Chino - for the speaker jack, any socket will do no? How about for the switch? Any will do din? I'm planning to make my HT40 function as a cab din so I'm planning to put a DPDT switch to switch between 1) HT40 connected to internal speakers; 2) internal speakers disconnected to amp, and connected to jack.
Normal na mono jack lang yung gamit ko bro.
As for the switch, on-off DPDT toggle switch na around 3-5 amperes yung gamit ko.
As per yung balak mo bro, masaya siguro magroute ka ng para sa jack doon sa back panel ng HT-40.
Tapos kabitan mo dun ng jack. Yung lugs ng internal speaker, isolder mo na sa jack na yun. Tapos gamit ka nalang ng speaker cable from that jack papunta sa "head" ng HT-40 or sa iba pang head.