Ha! ... many do seem to thunk, don't they?

The Brownings had a capacitor that caused the receiver to mute slowly so
each transmission was preceded by brief audio feedback. A popular mod was to
install a DPST center off toggle so you could switch between two different
caps for a long ping and a short ping, or turn it off altogether.

Really skillful ops would wave the mic in front of the speaker causing the
feedback to warble as it died. Hence the name "Screaming Eagle".

;-)

73

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Larry Keith
Sent: Tuesday, April 04, 2006 12:05 PM
To: Discussion of AM Radio
Subject: [AMRadio] ping vs thunk!


 "CQ CQ CQ from K4MO .... <ping!!>".

Hmm.  I always thought that AM transmitters should
have a "Thunk" sound when when you let off the XMIT
switch..


"CQ from KQ4BY ... THUNK!"

73,

Larry
KQ4BY

Larry Keith
231 Shenandoah Trail
Warner Robins, GA 31088-6289
[EMAIL PROTECTED]
478-329-0030


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