Re: Floating point math in FORTRAN IV on PDP-8

Kyle, I have not run my machine since March. Summer is car season. But I thought that maybe I could run this little program quickly. My PDP8E started up, loaded the RIM and SERIAL DISK then OS/8 ran. Everything looked good, BUT.. something is wrong with my FORTRAN 4. Programs seem to

Re: Shipping a Flexowriter

Kyle, my Friden is a Model SFD-V, although yours looks similar, apparently it is different. You will find that a lot of the old lube has combined with dust and dirt to make gummy grime. This sticky stuff will cause the relays and lever arms to stick and act sluggishly. I have found that a strip

Re: DEC compatible boards

Paul I talked to you about a M8650 serial board for a PDP8E. We talked on the telephone one evening and you mentioned that if I had not heard anything in a week or 2 I should remind you. Thanks  Mike Zahorik (414) 254-6768 From: Paul Anderson via cctalk To:

Re: DEC compatible boards

Paul, I'm looking for dec m8650 for a PDP8E.  Mike Zahorik (414) 254-6768 From: Paul Anderson via cctalk To: General Discussion: On-Topic and Off-Topic Posts ; cct...@vax-11.org Sent: Friday, February 16, 2018 3:40 AM Subject: DEC

Re: DEC quad board rack

Thanks, that information should be enough to get going. I may want a different lay out so that it will fit on some metal shelving I have.  Mike Zahorik (414) 254-6768 From: Noel Chiappa via cctalk To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Sent:

Re: DEC quad board rack

Thanks for responding. Makes sense. I do like your wood working. I may give it a try. Should not be very difficult.  Mike Zahorik (414) 254-6768 From: Noel Chiappa via cctalk To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Sent: Sunday, December 31, 2017

Re: DEC quad board rack

Noel, I recently I picked up a dozen or so spare boards for my PDP8E. I was wondering about how to store them. Some guys recommend some poly bags, others say it is important to protect against humidity. You sure have a boat load of cards, have you had any failures while in storage? Thanks Mike

Re: EPROM baking

My homemade 8080 CPM machine used a number of 2708 and 2716 EPROMs. that was 40 years ago. This machine is still running and I use it, but since I had trouble with the EPROMs, I switched to EEPROMs. I would also be interested in hearing about whether or not baking would work and how to do the