Dennis. . .there is another CW speaker owner using an Elecraft K4D. He
has shared his findings with me over the past few month and has results
similar to mine. I will let him share further information if he desires.
73 for now. . . Dave, W0FLS
On 2/7/2026 12:25 PM, Dennis W0JX via Topband wrote:
I wonder if this effect exists in HYBRID receivers such as the Yaesu FTDX-101
and also the K4HD?
Incidentally, the tuned speaker is an old concept. There is a guy in TX that
has been building them for years with PVC tubing. Only problem is that his
resonanted around 750 HZ. Even 600+ sound high when I'm used to around 420 Hz
or so.
73 Dennis W0JX
.
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