[Amps] Are exciter RF delays to prevent hot keying cataloged anywhere?

[Rob Stampfli]

I know most rigs employ a delay of some milliseconds between the time
when their amp relay closes and RF transmission begins in order to prevent
hot keying problems.  On some, this is even an adjustable parameter, but
on most it is fixed.

Has anyone compiled a list of delay values for the various commercial
transceivers that have been sold over the years?  It would seem that
such a list would be quite useful to hams trying to retrofit a new amp
into their shack.  In addition to the delay figure, one could also add
the voltage/amperage limits of the keying circuit, too.

Inquiring minds...

Rob / KD8WK