WTD: Electrovoice 638 Microphone

[John A Diefenbach]

When I was in the USAF, in SAC, many, many years ago, SAC was utilizing the
Collins KWT-6/5 1-KW SSB transceivers at their bases for inter-base RF
communications. There were two of these transceivers at each location, each
transceiver utilizing the EV-638.

John Diefenbach, K1TLV

On Mon, Jan 12, 2009 at 4:59 PM, Emil Dular <wd4scz at aol.com> wrote:

> The results of several on-air A-B tests with both my SB-102 and the SB-401
> the best signal reports come from an old unamplified D-104. Almost a dead
> heat is the Turner 350 hand mic with the EV-638 getting at best
> ".......that
> one's OK but nowhere near as nice as the other one." This holds true for
> both stations where the operator has heard me in real life as well as those
> who have only the "on-air" sound to go by.
>
> The EV-638 has never elicited complaints, but switching the mic out without
> announcing the fact ahead of time, the change in audio gets a comment about
> one time out of three.
>
> And the EV-638 is pictured prominently in the SB-102 assembly manual.  They
> must work well for someone?
>
> 73 Emil de WD4SCZ
>
>
>
>
>
> > >
> > >> Odd situatution, given that Heath SOLD the 638 (on the E-V PTT stand)
> for
> > >> their radios for quite some time...
>
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