🇺🇦 haxadecimal 🚫👑Apr 7
Dear lazyweb,
Does anyone happen to know what company introduced the first TTL-compatible metal-can hybrid crystal oscillator in the DIP footprint (like a 14-pin DIP footprint, but with only the four corner pins), and when?
My web searches don't seem to yield relevant results. I'm not looking for the history of crystal oscillators in general. I think the type I've described appeared in the 1970s.
#hybrid #dip #crystal #oscillator
Show threadbitsavers.orgApr 7

@brouhaha

Northern Engineering Labs or one of the other crystal makers around the Chicago area. Motorola also made them.

also check the Electronic Engineering Masters on bitsavers.

Show thread🇺🇦 haxadecimal 🚫👑Apr 7
@bitsavers
I forgot all about EEM. Great idea!
Show threadbitsavers.orgApr 7

@brouhaha

the moto LOCOII osc came out in 1978

Show threadxlengineer1Apr 7
@bitsavers @brouhaha I'm surprised that the temperature range was in Celsius degrees.
Show thread🇺🇦 haxadecimal 🚫👑Apr 7
@xlengineer1 @bitsavers
In the US, electronic component and subsystem temperature specifications went metric by the mid 1960s.
Show threadarrakeen_urbanite
@brouhaha @xlengineer1 @bitsavers Is it because it helped avoid a third digit in temperature displays?
Apr 7 at 9:29amWeb
Show thread🇺🇦 haxadecimal 🚫👑Apr 7
@arrakeen_urbanite @xlengineer1 @bitsavers
Unlikely.