Maybe you just couldn't 'hear' it. :^)
On a related subject, I once built a complete type D flip-flop from CML. Just to see how fast 2N3904s can possibly go. There was too much inductance and delay in the feedback loops though (which, being fairly small signals, is analog feedback too, not hard saturated digital), and it oscillated. Oh well. ;)
Tim
-- Seven Transistor Labs, LLC Electrical Engineering Consultation and Contract Design Website: http://seventransistorlabs.com
Level translation: start near ground, shift up, shift back down.
I did the circuit with SOT23s, and it worked, but they got absurdly hot. Too much voltage, too much current. SOT89 is a nice little package.
This was too easy. Something's wrong.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
It just needed some ferrite beads!
Or base resistors, which do pretty much the same thing.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
The data sheets have Z versus current.
You seem crabby lately.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
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