ORIGINAL: tkg

Oh I'm around for questions.
BTW CH units were potted with a special goo. Worked very well in high vibration environments, but could be easily removed for repairs and then repotted. It just was not poured full of epoxy.
More BTW CH started using the SS (computer timing) unit about 15 years ago. The original MK1 unit was fantastic, the MKII used the same program but was surface mounted. The MKIII and the MKIV were surface mounted but had multiple programs in each chip. The MKIII had 2 programs and the MKIV had 4 programs. We could select the correct program for the engine being used. That selection is why the CH units worked so well on ''difficult'' engines