Re: DC SSR - Assembly questions
The current version of the board is 1.1, not 1.5.
The board was designed to take either a TO92 cased 78L05 or TO220 cased 7805. This was to give people choices.
Same with C1 and C2. The three holes allow for a variety of cap lead spacings. Mono 0.1 uF caps I have come with lead spacing of .1, .2, .3 Adding the extra hole gives you the option to use what you have.
The power feed for the regulator has always come from the DC load side. This is for galvanic isolation
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