• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Now THAT'S Vintage

TheNeil

Well-known member
OK I know it's not Apple and it's not exactly fully functional but a nice envelope came through the letterbox with a little white box containing...

An unused part for a Univac machine!

Sadly it's not from the Univac 1 (i.e. 1950's) but is more likely to come from the mid-70's but it's still amazingly retro. No chips but about 20 surface mounted components (resistors, a transistor (the big three legged kind) and a couple of diodes) on a very primitive circuit board. It's still in its original blue ploystyrene holder and original white cardboard sleeve (proudly boasting the company name and a dazzling array of undecypherable part numbers)

No idea what the hell it does, what it's for or whether it works (amazingly I don't have a mainframe to test it on ;) )

 

TylerEss

Well-known member
Post pics. With some of the electronics folks on this board, I bet we can guess at its intended purpose with some degree of accuracy!

 

equill

Well-known member
That's an outcome of then resistor fabrication technology. Note, however, that only four of the resistors are of four-band precision (gold). The others argue that some precise voltage-division is going on. And the board beats the hell out of four-layer boards for ease of tracing the circuitry ...

de

 
Top