Re: cctalk Digest, Vol 39, Issue 2

2017-12-06 Thread Fred via cctalk
On Sat, 2 Dec 2017, cctalk-requ...@classiccmp.org wrote: Message: 13 Date: Fri, 1 Dec 2017 20:39:14 -0500 From: william degnan Thanks I think this is what I need, just disable smtp within MULTINET. As I said in my OP I prefer a VMS or MULTINET solution free of modern hardware if possible, n

Re: cctalk Digest, Vol 39, Issue 2

2017-09-29 Thread Adrian Graham via cctalk
Hi Andrea, I assume that's a message for me about my strange grounding issue? I'd already replaced the caps in that startup circuit, it's one of the first things you do when troubleshooting a non-booting Newbrain. In this case it seemed to be some electrolytic spill from the original leaky caps t

Re: cctalk Digest, Vol 39, Issue 2

2017-09-29 Thread shadoooo via cctalk
Hello, explanation is easy. Old electrolytic will have a bigger current leakage, i.e. the unwanted amount of current which flows through it. With resistances having high value, the small current is completely eated by the leakage, thus never charging the capacitors. As you are connecting the probes