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Four-Phase Systems IV/90

I was going to go with the latches initially since I have an inventory of salvaged ones but it was taking us more than ten minutes to get the measurements and placement correct so we just made two large holes and called it good.
 
Oh, okay. I've also seen PCB extraction tools that hook onto the bottom of a card near the connector and are equipped with a spring-loaded handle. Hook the ends (either through holes in the PCB or card edge), squeeze the handle and pull and Bob's your uncle. Typically not cheap,, but avoids shredded fingers. Not general-purpose; custom for the application. My last exposure to one was about 40 years ago--saved my fingertips.
 
I would think what you would want would be an "L: that fit into the hole and a "T" on top to wrap your hand around
One for each hand, and pull..
I wonder why no one ever built any. Only useful for pulling boards.
 
I've worked on analog switchers where it was a J-hook that was used to reach down and into holes in the board specifically for mechanically pulling but the other ends were bent into a ring you you could put a finger through and then use two of them to pull the board straight out. Central Dynamics (not General dynamics) actually had clips under the lid for storing them with the cabinet.
 
The absolute worst card ejectors are the cheap metal ones DG used in Novas.
With the pair of 100 pin high insertion force sockets they used, they just bent.
 
Al Kossow said:
The absolute worst card ejectors are the cheap metal ones DG used in Novas.
With the pair of 100 pin high insertion force sockets they used, they just bent.
Click to expand...
I've not had any of mine bend the lever, but rather the spring steel that they push against on the card cage frame. Or worse, the lever broke clean out of the PCB somehow... either way, it wasn't ideal.
 
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