Duh!---Sorry, you're correct. These are 40 pin 2" X 3/4" ceramic bodied chips with the gold lid and legs. Thanks, Craig Eric Smith wrote:

It's quite wired. It has two parts - the translucent box and CD holder. You put it into the unit and holder remains inside while you takes the box out. To remove CD you have to put box again into RRD40 and holder with CD click back with the box, and you can remove all (it's CD+holder+box). If you want I can send you a photo of caddy from my RRD40. Maciek Mike Ford wrote:

Hi I'm looking for EC-1 HeathKit analog computer owners. I'm looking to make a group purchase of a bunch of double miniature banana plugs. These are the ones that will fit into the crystal jacks between the bigger banana jacks. These will allow one to put their resistors, diodes and capacitors on perminent mounts so the wires are not easily broken when re-programming. This is the way the pros do it. These are not cheap I've seen them in the Allied catalog at $4.20 each. I'm hoping I can get a better price with a group purchase. One would typically want to have about 25 of these to have the normal combinations of resistors and capacitors needed for most general simulation and examples from the manual. Anyway, please let me know in the next few days if you are interested so we can make a good deal. Dwight

Marvin <marvin(a)rain.org> wrote: Hi I think you are talking about the 3/4 inch spaced standard banana plugs. The EC-1 needs the smaller 1/2 inch spaced ones. I don't think I'd ever seen these at any of the local surplus in the south bay area. Still, the quantity needed per machine is about 25 or so. I would be glad if anyone finds the Pomona type 2244- doubles at a surplus store that they let me know where they are. Dwight