It's a design feature. They burn out self-destructively, clearing the fault and signalling the loss of cable-borne RFI suppression.
On Sun, Jun 16, 2024 at 11:55 AM D. Resor via cctalk <cctalk@classiccmp.org> wrote: > I reached out to the seller and explained that it may have been AC line > capacitors which went up in smoke etc, and why it's always a bad idea to > "just plug it in" and power it on without some knowledge to remove the > cover and make a visual inspect first. > > Yes, I found the same info searching online. It's a Z80 box which can run > the proprietary O/S which Litton-Monroe furnished or C/PM. > > A nice looking piece of equipment but nothing special. > > The cursor key layout could have been laid out in a more user friendly way. > > Don Resor > > -----Original Message----- > From: Chuck Guzis via cctalk <cctalk@classiccmp.org> > Sent: Saturday, June 15, 2024 9:58 PM > To: D. Resor via cctalk <cctalk@classiccmp.org> > Cc: Chuck Guzis <ccl...@sydex.com> > Subject: [cctalk] Re: The magic smoke.... > > On 6/15/24 21:51, D. Resor via cctalk wrote: > > Seems this eBay seller let the magic smoke get out, then proceeded to > > power it on again one hour later. > > > > Litton Monroe OC 8820 > > > > https://www.ebay.com/itm/355793400092 > > > > See the description.. > > Probably due to the failed film-in-oil (sometimes known as Rifa) line > filter capacitors--a very common failure and nonfatal. > > My recollection of these machines is that they are a basic Z80 CP/M box--I > do have samples of these floppies in my archives. > > So nothing special, AFAIK. > > --Chuck > > >
