A billion or so washing machines used motor driven rotary switches as controllers.
NT
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- posted
8 years ago
PCB with 271 relays
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- posted
8 years ago
Obtainium, but expensivum. Lots of them are on ebay.
Best regards, Piotr
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8 years ago
It seems that your fringe elecronics is even more fringe than mine. I play with magamps, which are, so to speak, a step forward. ;-)
Best regards, Piotr
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8 years ago
mega-amps might be even more exciting.
--sp
-- Best regards, Spehro Pefhany Amazon link for AoE 3rd Edition: http://tinyurl.com/ntrpwu8
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8 years ago
formatting link
They surely are. 2MA. Scary.
Best regards, Piotr
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8 years ago
I want to hear the self test routine on this board.
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8 years ago
It will be fun to play Jingle Bells or something on it.
We'll stack two boards in the typical test set, which gives 542 relays to play.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
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8 years ago
What was the failure mode of the Omron parts?
Sylvia.
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8 years ago
Bad sealing, water penetration when washed.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
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8 years ago
Oh, so not an issue if they're not going to be washed, then.
Thanks.
Sylvia.
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8 years ago
Probably not. We didn't have trouble with the Omrons when we used a rosin flux/solvent wash process. When we went with ROHS/soluble flux/water wash, we started seeing leakage currents between open contacts. Water is evil. We have ordered a new "vapor degreaser", which is actually a solvent wash system, so we can continue to use rosin flux on leakage-sensitive boards, low-level analog stuff.
-- John Larkin Highland Technology, Inc lunatic fringe electronics