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Re: Unusual 1802 machine in action

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  • joshbensadon
    Very nice looking panel. The displays look big and bright, always a pleasure to see. It s rare enough, I don t think anyone else here has ever seen such a
    Message 1 of 7 , May 29, 2013
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      Very nice looking panel. The displays look big and bright, always a pleasure to see. It's rare enough, I don't think anyone else here has ever seen such a control? What will you do with it next?

      :)J

      --- In cosmacelf@yahoogroups.com, "jdrose_8_bit" <rarecoinbuyer@...> wrote:
      >
      >
      > I received the machine in the mail today. I was surprised it survived the shipping and powered up. It is a nest of 4 hand wired Vector breadboards and a power supply board.
      >
      > It powers up but I sorta doubt it would work properly if it was installed into the application it was built for because there is some fairly serious corrosion on Vector breadboard four around the Ni-Cad backup battery. That has affected a couple of ICs. (RCA 40?? and RCA 4050). They are a loss. The 1802 was positioned right next to the battery but it's gold plating appears to have saved it.
      >
      > All the other ICs in the gadget are unaffected by the corrosion.
      >
      > You can see it in action here:
      >
      > http://www.youtube.com/watch?v=VGFszGTdIyk
      >
      > (Videographed on my kitchen counter in mixed window and light bulb illumination. Color is a bit off but close enough I think.)
      >
      > Here is a list of IC components from the top to bottom board. I was hoping to find something rare and expensive. No such luck.
      > They are all socketed.
      >
      >
      > Board one:
      >
      > CD4063BE RCA (x 4)
      > CD1852D RCA (x 4)
      > N7447 Signetics
      > DM74LS47N National Semiconductor (x 4)
      >
      > Board two:
      >
      > CD1852D RCA (x 4)
      > CD4508BE RCA (x 2)
      > CD4081BE RCA
      > 316A103 A-B
      > ICM7217IJI Intersil
      >
      > Board three:
      >
      > CD4098BE RCA (x 4)
      > CD4027BE RCA (x 2)
      > LM339N
      > CD4011BE RCA (x 3)
      > CD4030AE RCA
      > CD4013AE RCA
      > CD4081BE RCA
      > CD4028BE RCA
      > CD4075BE RCA
      >
      > Board four:
      >
      > MWS5114E RCA (x 6)
      > CD4011BE RCA (x 2)
      > CD4050BE RCA (corroded)
      > 40?? RCA? (corroded)
      > CD4555 RCA
      > CDP1802D RCA
      > CDP1852D RCA
      > CDPR582CD RCA
      > D2758 Intel
      >
      >
      >
      >
      > --- In cosmacelf@yahoogroups.com, "jdrose_8_bit" <rarecoinbuyer@> wrote:
      > >
      > > I won this lot on eBay yesterday. Appears to be a handmade, one off data logger of some kind.
      > >
      > > Any ideas what it may have been used for? Is it good for anything today?
      > >
      > > 161026938817
      > >
      > > Thank you
      > >
      >
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