Mine are? the model..... ODC-15A? ( 15 vdc input side, and a huge plus / minus range)? ?and are rated for 250 vdc @ 1 amp on the output side.?
The other version is called a ODC-15, and output side is rated for 60 vdc @ 3 amps.?
Mine are red, and designed to be plugged into their mating board ( not needed).?
They were made by CRYDOM.....and also? Opto-22.? ?They are identical between the 2 x companies.?
They are all basically an industry standard.... and bombproof.? ? On their diagram, mine come with an internal? back emf diode built into the output side.?
I use em for keying the vac relays in the hb amps.... and also the mech relays in some of my drake amps...... and some of the drake amps now have? 3 x vac relays in em.?
Using the opto to? do the bias cutoff job? was a new one for me..... but our VK friends tell me it works superb on hb? YC-156 amps.... and any other amp. In those cases, the version with the? 60 vdc @ 3 amp? CCS output is used.?
Yrs ago, I also tried paralleling 2 x identical opto's? to handle more current....and that too also works..at least with my bench test setup, using my 0-60 vdc @ 5 amp lab supplies.??
You can also get opto's that will handle ACV on the output side.? ?I was going to try that for an experiment, used to shunt a series drop resistor for a fan cooling setup.? (Faster on TX, slower on RX, or extended RX).?
