Re: parallel port signal to relay / source ?

>
> Now for the practical answer: Use a SSR (solid state relay). They
> are relatively cheap and available on the surplus market. They have
> isolated inputs, they handle AC at high currents (motors,
> solenoids,etc) and you can drive most of them from the parallel
> port. I bought several (3-30volts DC input; 10A 240VAC output) for
> less than 8 bucks each. They use about 5ma at 5 volts on the input

to

> control 2.4KW! They will NOT switch DC voltages and loads. I built

a

> Single to 3 phase converter using a 5 HP 3P surplus motor and some
> caps. I designed a power on one-shot that used a 555 to drive an

SSR

> module to automatically switch in and out the motor starting cap. I
> work pretty cheap but it would take several hours to wire up and

test

> a descrete optoisolater circuit and the transistors, relays, etc.
> Last time I made 2.00/hr I was in the Army. I would rather use my
> time to do work on the mechanical stuff ;-)

Do you have a source for these solid state relays

Frank