[R-390] Sound powered headphones?

Robert Goff [email protected]
Tue, 22 Jul 2003 08:52:52 -0600


Does anyone have any experience using sound powered headphones with a tube 
radio?
They're prized by crystal radio builders for their extreme sensitivity.  I 
have a pair of "deck talkers" and have wondered how they would work with an 
R-390/392 or even a one tube regen set.  If I'm not mistaken, the impedence 
is a bit lower, something on the order of 100 ohms, so they would require 
some sort of matching network.
Anybody have experience with this?
Thanks,
Robert Goff
W7MKA

_________________________________________________________________
Tired of spam? Get advanced junk mail protection with MSN 8. 
http://join.msn.com/?page=features/junkmail