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[TRLog] Optocoupler switching time?

Subject: [TRLog] Optocoupler switching time?
From: k4ro@k4ro.net (K4RO Kirk Pickering)
Date: Wed, 29 Jul 1998 08:22:18 -0500 (CDT)
For those of you using optocouplers in your radio keying lines, 
have you noticed that the speed of the device makes any difference?

The optocouplers I've come across are 5 microsecond switching time. 
I now understand that there are faster ones out there (2 uS.)
Has anyone noticed if the switching speed makes any real difference?

What is the typical switching speed of a 2N22xx transistor?

Thanks again,

-Kirk  K4RO

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