General > General Technical Chat
Where have you actually come across a 555 timer in the wild?
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T3sl4co1l:
Think I once saw some industrial equipment with a whack of 'em on a board.  Probably something like a chain-of-one-shot-timers circuit for generating timing and logic signals for... power control, gate drive, who knows.

A lot of the same sorts of things are chock full of CD4000 CMOS in CERDIPs.  Even current production boards. :o :o

A lot of that hardware is literally 20+ years old and still in production, hence the archaic design.

Tim
BravoV:
Ancient HP laserjet printer Jet-Direct Ethernet add-on board that still uses thick coax ethernet 10Base2 and the "newer" RJ-45 interfaces  ::), remembered salvaged few TLC555 (cmos version of 555) from dumpster drivings while ago, mostly people throw them away in bulk.

Actually what I love to salvage is the BNC connectors, the older ones are quite good, all brass with thick nickel plating construction.  :-+

Something look like this
Jarrod Roberson:
Oh yeah, analog guitar effects pedals and other gear stand alone audio effects that need a repeating waveform/signal use them by the boatloads. Delay, flangers, echo, reverb, etc.
Biff383:
Yes.....bike horn.....actually a 556 I think (2 in one). I got a bunch for free.
thomastheo:

--- Quote from: Jarrod Roberson on March 31, 2014, 03:50:56 pm ---Oh yeah, analog guitar effects pedals and other gear stand alone audio effects that need a repeating waveform/signal use them by the boatloads. Delay, flangers, echo, reverb, etc.

--- End quote ---

Just checked to see if my boss flanger has one... and alas, no dice )
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