... I haven't been in that room in the past few weeks, but the modem (now signed by Lee!) is on a shelf there, and I think the documents are with it....
So I'm not the only one looking for the manual and schematics. Cool. I couldn't find the docs and schematics anywhere using my trusty google. Rich Cini had...
... Yes, I helped Rich by scanning a bunch of PE articles. I probably scanned that article you are reading. I have a good collection of PE and RE magazines...
I just managed to get my hands on an IMSAI 8080 that probably hasn't been power up in decades. I am very interested in getting this thing up and running again....
... The first items to check would be the 4 large electrolytic caps in the power supply. Many people recommend a re-forming operation before you hit them with...
... Hi Daniel, Congrats on the IMSAI, very nice computer! Step 1, check out the power supply. Pull out all the cards, remove the front panel (CP-A) electronics...
... I would recommend: 1) Photograph the unit, inside and out. 2) Confirm that it still has the original unregulated, linear power supply. If not, stop here...
I will add one more thing to all of this.... Visually inspect the system and all the cards for anything loose.... Make sure there aren't any broken wires...
... full manual with the final schematics. Hi Corey, I still have my original manual and will scan that and have it in the library section of my website today....
... I don't like the part about going 10% over the cap's rated voltage, not for vintage stuff. Perhaps it's ok for rough testing new circuits/caps. And right...
... Margin testing, as this is called, is the best thing you can do to suspect capacitors like electrolytics. All caps fail. Would you rather caps fail under...
All -- Last week was the 29th anniversary of the introduction of the original Macintosh. So, in a fit of nostalgia, I re-watched the video on YouTube from the...
Okay, Corey; the Pennywhistle 103 modem manual has been posted on my website. Note that an errata sheet is included as the next-to-last page. I have also left...
... Can I have Pizza either way? Perhaps it's best to replace all the tantalum and electrolytic caps now before they fail? You can't be testing them prior to...
... No, you do not have to margin test all the time. You can do it only once if you want to, or you can do it once a year, or every week. it is up toi you....
Thank you for all of the support everyone, and 2014 will be a great year for VCFs! Gearing up now for the VCFSE - lots of stuff is about to happen, lots of...
... Simple advice. Look around the Web at descriptions of what OTHER people have done, to start up and inspect and repair THEIR IMSAI or MITS (Altair) or...
... This is out of my experience, but a bit of Web-reading tells me these can use a lot of diesel, and diesel is probably $4 a gallon by now in NJ. Someone who...
I could use some mechanical parts from a couple of 5.25-inch tandon TM-100 full height drives. Mostly the front "latch" which often breaks at those little...
... Bought a bare variac (knockouts for wire or clamps) from Will for this exact purpose. In the winter it doesn't matter, but in the summer with no air...
    ... This is out of my experience, but a bit of Web-reading tells me these can use a lot of diesel, and diesel is probably $4 a gallon by now in NJ....
    ... This is out of my experience, but a bit of Web-reading tells me these can use a lot of diesel, and diesel is probably $4 a gallon by now in NJ....
Thanks Dave. I had forgotten about Andy's folklore.org. IMHO the slide show demo is something that should be located and preserved. I have a Fat Mac at home...
