Resonat speakers

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From: Lars Olsson (sm3avq@ebox.tninet.se)
Date: Sat Oct 10 1998 - 05:06:33 EDT


Hello Steven and other QRP hams.
Yes, I can confirm that it works very fine.
I have used paper cups from Coca Cola and with a scissors it is very
easy to adjust the size to make the cup resonant to your favourit CW
beat tone. Try it! It works almost like a CW filter.
73 de Lars
SM3AVQ
Unhappy owner of SG-2020
Proud owner of Mercury paddle # 287 and
CMOS Super Keyer III.


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