Name That Ware July 2011

The Ware for July 2011 is shown below. Click on the image for a much larger version.

It’s the summer of retro wares!

Also, if you haven’t read it yet, Phil Torrone wrote up a nice article about why every maker should learn chinese. I think his article is a nice juxtaposition to these cold-war relics. It puts into perspective how much the world has changed since the days of McCarthyism…

15 Responses to “Name That Ware July 2011”

  1. joe_bleau says:

    My gut screams Philbrick op-amp when I see the pic, but I can’t find one that used a single tube. The construction certainly reminds me of their early tube op-amps. Maybe it’s not an op-amp, but a buffer instead? Or a diff amp, using a two element tube?

  2. joe_bleau says:

    Nevermind, it’s an early digital module possible from EECO. Looks a lot like the EECO standard packaging. If it’s an 11 pin plug, it could be a Z-90052 flipflop, a Z-90392 flipflop, a Z-90049 squaring circuit, a Z-90023 pentagrid circuit, or a Z-90053 dual cathode follower.

    Link to the EECO catalog:

  3. nophead says:

    My guess is that it is a double triode configured as a flip-flop to make a module that is part of an early computer or similar numerical machine.

  4. joe_bleau says:

    Guess I got locked out for too many comments too quickly?

    I’m thinking it’s a EECO digital module, as seen in the catalog at:

    The 11 pin candidates would include Z-90052 flipflop, Z-90392 flipflop, Z-90049 squaring circuit, Z-90023 pentagrid circuit, and the Z-90053 dual cathode follower.

    The two identical resistors would tend to rule out the Z-90023.

  5. J. Peterson says:

    Others beat me to it. It looks very much like a pluggable module for a very early electronic computer. If this is the case, the tube contains multiple active components (equivalents of FETs) and the supporting passives are stacked underneath.

  6. F4ERtheU says:

    Peterson, in this case, the passives are litterally “supporting” the tube ;)

    I came to the same deduction : computer element from a tube computer using a double triode…

  7. Mike says:

    This looks like a THD Yellow Jacket ( Only made to vintage specs :)
    – Mike

  8. The tube is a 7-pin dual triode with a common cathode, which only matches the 5964 in those diagrams. By itself, that narrows it down to the Z-90052 F/F, or the Z-90049 Squaring Circuit. As the Squaring Circuit has an 8-pin plug, and the pictured one has more, I’m going to say it’s the Z-90052 Flip-flop.

  9. Ab says:

    Photomultiplier Tube?

  10. John says:

    I’ll say its a flip-flop circuit from a Univac computer.

    I saw a bunch of these for sale in a surplus electronics store around 1968, so its pretty old!

  11. Peakcrew says:

    There are some very odd postings creeping in to this! Some are clearly spam, but others seem to be replying to other threads.

  12. Sounds like we need some kind of spam protection here… this is getting ridiculous.

  13. bunnie says:

    Sorry, I just got around to cleaning the cruft. I’m not sure why so much spam is getting through suddenly, I’m using anti-spam filters but maybe the bots that are doing the spamming just got a lot more sophisticated…just fyi, I’m currently getting spam at a rate of one spam submission per minute, so most of them are being filtered correctly.

  14. salty says:

    Octal may have had heaters wired in series or series/parallel. Socket mod includes adjustment for heater voltage of miniature tube – 7 pin?

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