Extra Stuff

This weekend was interesting for me also. I went up to the Santa Maria Amateur Radio Swapfest and found a few things. After I got back, I read a message where someone was looking for a VIC 20 modem, and of course I saw one in the box up there. I thought about picking it up, but decided against it since I think I already have one <sigh>. I did run into some other interesting stuff (although nothing like Sams good fortune!!!) I picked up another TRS-80 Model 4 desktop unit with some docs, an Apple II Plus with 2 disk drives (no docs), and a Coco 2 (no docs or cables.) I really was hoping someone else would buy them and put them to good use, but since they were still available after everything was over ... Oh well, I still haven't put anything in the bathrooms yet :). I did run into a couple of interesting boards. The first is labeled "Digital Technology, Engineering Extension, Univ. of Wisconsin-Madison" and looks to be part of a digital trainer. It has 4 chips in sockets ( three 7400's and one 7405), six Red LED's, six SPDT switches, a pot, and a place where some sort of TO220 style transistor, voltage regulator or whatever goes, and a number of terminating resistors. It seems to have places where interconnect wire can be plugged in for interconnecting the LEDs, Switchs, and the 7400's (which are each arranged as two R-S flip flops.) The date on the approx. 5" x 7" circuit board is 2/76. If anyone has any further information on this board, I would be most interested! The second board is a plug-in Metric Systems Corp. MC00110 Logic Inverter board. What makes it interesting is that the circuits are all made of discrete components and the entire board seems to have the traces gold plated. If anyone needs the computers I picked up, let me know as those types are already in the collection. The possibility that someone else needs them is the real reason I picked them up.