Image Map Image Map
Results 1 to 9 of 9

Thread: Identify a suspect PDP8/???

  1. #1

    Default Identify a suspect PDP8/???

    Can anyone help me definitively identify this PDP 8? It has a F front panel, but I've been told that it's actually an M. Looking for a couple sources to cite. Ohh... And I'd like to sell it if you're interested...

    IMG_7232.jpg IMG_7233 1500.jpg IMG_7237.jpg

    There are more images on this CraigsList ad.


    Thanks, - Jeff
    ---
    KF7CRU @jhalbrecht @TheRetroWagon Looking for Solid State Music SB1 please DM me.
    http://www.theretrowagon.com/vcf-west-2017/

  2. #2
    Join Date
    Aug 2010
    Location
    Silicon Valley USA
    Posts
    856
    Blog Entries
    4

    Default

    It is a PDP-8/F. Small box with one backplane like the /M, but it is the /F box. The /F power supply is on the left. On the /M the power supply is at the rear and the case fans are on the left.

    Besides the label on the back panel says PDP-8/F, as well as the front panel. Why do you not believe those? The /F is a perfectly valid model.

  3. #3

    Default

    Quote Originally Posted by AK6DN View Post
    It is a PDP-8/F. Small box with one backplane like the /M, but it is the /F box. The /F power supply is on the left. On the /M the power supply is at the rear and the case fans are on the left.

    Besides the label on the back panel says PDP-8/F, as well as the front panel. Why do you not believe those? The /F is a perfectly valid model.
    Thanks for the info. The person who tried to tell me it was an 'M' recanted. I just wanted to be sure I was posting accurate information.

    I read on Doug Jones site that starting with 'E' they used switching supplies. Is 'F' sequential? 50lbs - I doubt that's a switching supply in my 'F'

    - Jeff
    ---
    KF7CRU @jhalbrecht @TheRetroWagon Looking for Solid State Music SB1 please DM me.
    http://www.theretrowagon.com/vcf-west-2017/

  4. #4
    Join Date
    Aug 2010
    Location
    Silicon Valley USA
    Posts
    856
    Blog Entries
    4

    Default

    The 8E uses a linear regulator +5V power supply. The 8F and 8M use a switching regulator +5V power supply design. 8F and 8M just have a different form factor layout in the box is all.

    Don

  5. #5

    Default

    I really like those small machines. I would love to find such a machine a bit closer to my home 😊
    WTB: Case for Altair 8800 ...... Rolands Github projects

  6. #6

    Default

    Jeff,

    I have recently started looking to get a PDP-8 after having built a PiDP-8 and had a chance to do some toggling. Do you have a list of the card in the system? It's hard to tell from the pictures which are present. Also I see what appears to be the same system listed on ebay at a different price from the craigslist add. Are both from you?

  7. #7

    Default

    Jeff,

    I would be interested in this unit if you could provide more details on what cards are present. I also see what appears to be the same item listed on ebay, is that listing also yours?.

    Thanks

  8. #8

    Default

    Quote Originally Posted by NicDEC View Post
    Jeff,

    I would be interested in this unit if you could provide more details on what cards are present. I also see what appears to be the same item listed on ebay, is that listing also yours?.

    Thanks
    The PDP 8/f that I listed on Craigslist and ePay sold on ePay. Unfortunately I didn't have email notifications turned on for my own thread and saw your questions after the auction ended. sorry about that.
    ---
    KF7CRU @jhalbrecht @TheRetroWagon Looking for Solid State Music SB1 please DM me.
    http://www.theretrowagon.com/vcf-west-2017/

  9. #9

    Default

    Jeff,

    No worries. I was a little slow linking together the listings in my head otherwise I would have asked on eBay. I'm sure I'll have another chance at one in the future. Thanks for updating here though.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •