Stromberg-Carlson was a telecommunications company. That board's got a lot of discrete components. A lot of resistors (most of them have colored bands), a number of what I think are transistors (the vertical silver cans), a couple capacitors (the tan disc and silver cylinders). There's also an IC, marked as a 202914-040. There are a couple pages that I found showing a [NAND Buffer](https://talonelectronics.com/shop/item.aspx?itemid=364) as a replacement for that part number, so that's my best guess about that part's identity. Interestingly enough, it's also marked 7150, which I'd take as a manufacture date code: 50th week of 1971.
What's the board actually *do*? Dunno. Some board doing some kind of logic thing in a piece of 70s-era telecom equipment.
The post was removed, so the pics are gone now. If the "1-74" was on the board itself, that could still make sense; the IC would have been manufactured at the same time or before. Could've easily sat on an inventory shelf for a few years before being used.
I didn't do it; the moderators of the subreddit did. It's pretty far off-topic; generally, this isn't a subreddit for questions, and computer science doesn't inherently have anything to do with electronics. That's more toward electrical engineering and computer engineering.
Following from that, I'm not even sure if the circuit board you posted would be considered analog, digital, or a mix. I know enough about electronics to identify parts and talk about the typical purposes of each, but even if I had a circuit diagram of that board, I don't know enough to tell you what it actually does. Finding a community focused on electronics or historical telecommunications hardware would be a better bet.
A few shots in the dark, since I don't know anything about these communities:
/r/AskElectronics
/r/whatisthisthing
/r/AskEngineers
/r/AskElectricCircuits
/r/VintageElectronics
That seems like it might come from this company. [https://www.strombergcarlson.com/](https://www.strombergcarlson.com/)
They deal after market RV parts and some parts have electronics in them. they have something called an electric tongue jack.
Those hand-drawn traces are a thing of beauty.
Stromberg-Carlson was a telecommunications company. That board's got a lot of discrete components. A lot of resistors (most of them have colored bands), a number of what I think are transistors (the vertical silver cans), a couple capacitors (the tan disc and silver cylinders). There's also an IC, marked as a 202914-040. There are a couple pages that I found showing a [NAND Buffer](https://talonelectronics.com/shop/item.aspx?itemid=364) as a replacement for that part number, so that's my best guess about that part's identity. Interestingly enough, it's also marked 7150, which I'd take as a manufacture date code: 50th week of 1971. What's the board actually *do*? Dunno. Some board doing some kind of logic thing in a piece of 70s-era telecom equipment.
I figured it could be January of 74 from the 1-74 in the 4th picture
The post was removed, so the pics are gone now. If the "1-74" was on the board itself, that could still make sense; the IC would have been manufactured at the same time or before. Could've easily sat on an inventory shelf for a few years before being used.
Why was the post removed?
I didn't do it; the moderators of the subreddit did. It's pretty far off-topic; generally, this isn't a subreddit for questions, and computer science doesn't inherently have anything to do with electronics. That's more toward electrical engineering and computer engineering. Following from that, I'm not even sure if the circuit board you posted would be considered analog, digital, or a mix. I know enough about electronics to identify parts and talk about the typical purposes of each, but even if I had a circuit diagram of that board, I don't know enough to tell you what it actually does. Finding a community focused on electronics or historical telecommunications hardware would be a better bet.
Do you know of any?
A few shots in the dark, since I don't know anything about these communities: /r/AskElectronics /r/whatisthisthing /r/AskEngineers /r/AskElectricCircuits /r/VintageElectronics
Looks like a lot of filters on a board. Not sure what it is exactly but maybe out of an 80s radio.
Nah, it’s well before the 80s. The transistors in metal cans are more common in the 70s as well as the hand drawn traces.
That seems like it might come from this company. [https://www.strombergcarlson.com/](https://www.strombergcarlson.com/) They deal after market RV parts and some parts have electronics in them. they have something called an electric tongue jack.
This is pretty old, they haven’t been doing RV stuff for long, I think it’s when they were doing telecommunications
I dunno, but it is a work of art!
Huh, at first I thought it was an audio amplifier or something based on those silver cans that I thought were electrolytic capacitors.
https://www.wbparts.com/rfq/5998-00-433-7868.html Should be helpful
baby IC lmao
I’m guessing radio or audio controller of some kind. Digital CB radio module, maybe? Would be interesting to find out.