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Note on the SSCPO: big improvement in sound
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Just as an FYI for any other builders - the sound output and quality improve quite a bit if the unit is just tilted up a bit at the back or mounted a 1/2" or so off the table. Apparently lots of good stuff coming off the back of the speaker which is lost with the SSCPO just sitting on it's little feet. Bob Groh, WA2CKY
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Jim, N5IB
Funny that the SSCPO topic should crop up.
I just finished a little surface mount version of Dave's circuit. Decreasing the value of the resistors in series with the speaker and it performs quite nicely on 3 V from a pair of AA cells. Adequate volume, but not loud enough to annoy parents........ important because..... It's tucked into a key I 3-D printed for my grand daughter Tessa, who just turned 3 this week. You might recall a photo I posted a few weeks back of her trying her hand at the Brown Bothers paddles on my K2. Now she can have a key of her own. A roller-lever microswitch is hidden under the trunion, and there's provision to bring out a connection to actually key a tranmitter .... one day.... Photos are attached. 73 Jim, N5IB
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Very nice! Bob Groh, WA2CKY
On Thu, Oct 8, 2020 at 3:37 PM n5ib_2 <n5ib@...> wrote: Funny that the SSCPO topic should crop up.
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Ge Jim That’s Cute!! Might as well start Her early! 72 Johnny ACØBQ
On Thu, Oct 8, 2020 at 3:37 PM n5ib_2 <n5ib@...> wrote: Funny that the SSCPO topic should crop up. --
Check out the 4SQRP website at 4sqrp.com
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