Yes, that's the end product, Jerry...it isolates the coil trigger circuit. That's all we need in this application anyhow, don't you think?
The Langdon distributor was a modification of the 1982-1984 S10 type (and a few other GM products with V6 I think used that same distributor). Thanks to the "Cash for Clunkers" program there are fewer of those around now and lack of availability is one of the things that stopped Tom from making more.
