What was the first computer board to be wave-soldered?
Mar 18, 2021 · The Wikipedia article on wave soldering does not give any information on its history. What was the first computer circuit board to use this process? I am specifically looking …
hardware - How did wave soldering work? - Retrocomputing Stack …
Nov 22, 2020 · While it is not used as much nowadays, wave soldering was a big advance in the productivity of manufacturing electronics, compared to soldering all the components by hand. …
What causes the traces to wrinkle like this and should I be worried
Excess solder on the traces would be removed before the mask was applied, but usually not completely on large traces. So, after being masked, when the board was wave soldered to …
Why were chips socketed in early computers? - Retrocomputing …
Sep 6, 2018 · *2 - Wave soldering is a rather secure process and around since at least 1947 (oldest usage I know). It does require to have the whole board plus all of the placed …
PCB Black Spot: Leakage? - Retrocomputing Stack Exchange
Aug 20, 2017 · 2 That looks like long-term heat damage from a hot running component, especially given how PCB and Case are equally damaged. Not unlikely the transistor which has drossy …
What was the last of the Thinkpad X series with replaceable RAM ...
I know my x230 has replaceable RAM. I know the x395 lists its ram as being soldered. What is the last of the X series lineup with user-serviceable RAM?
Is solder-on memory upgrade an option here and how to check it
Jun 7, 2020 · Either way, with some old computers, not sure which one you could solder in RAM to add more of it. How to check if this is an option without potentially ruining this fine, working …
Reconditioning and cleaning old Nintendo (and other) game …
A reversed polarity cell could possibly damage the circuitry. To reattach the new cell, use rosin-core solder. The smaller the diameter of the solder, the easier this process will be. Slightly …
Restore corroded AT motherboard with dead CMOS battery
After the solder is hard, twist and pull the pin out of the hole, then brush away any remaining solder to leave an open hole. [6] [10] If the capacitor legs still refuse to go in for whatever …
Commodore 64c supply 9 Vac waveform specs
Oct 7, 2023 · I would be astonished if that was anything other than a nominal 9V tap off the mains transformer. So, approximately a 9V RMS sine wave at 49–61Hz.