[CW] Resonant CW Speaker

[Benny Owens]

I USED THE SPEAKER JACK BUT NEEDED THE QSL CARD TO DIRECT THE SOUND BETTER.

On Mon, Feb 6, 2017 at 7:16 PM, Joe <v31jp1957 at gmail.com> wrote:
> Hello, Stan.
>
> I have not built this particular one, but in the past, I have built a few
> for friends and myself. The low volume complaints I found came
> from folks using their earphone jacks.  Most radios today have the earphone
> jack's audio padded down for ear protection.  Once they
> moved the their plugs over to their speaker jacks,  their audio level was
> plenty high enough.  There are/was a couple of radios that
> had switches go between earphones and speaker which was a padder switch.
>
>
> On 2/6/2017 4:54 PM, stan levandowski wrote:
>>
>> I built the resonant speaker in the current QST.  It "works" in that I
>> certainly hear the "peak" with my 600 Hz sidetone and I can tune a CW signal
>> and hear that "peak" also.  However, there is NOT ENOUGH VOLUME.
>>
>>
>> I used the exact parts that the author used; ordered them all "fresh" from
>> Amazon so no "junk" from the junkbox was implicated.
>>
>>
>> I figured I had screwed up, so I built a second one, thinking I might have
>> a speaker anomaly.  The second speaker was the exact same speaker called for
>> in the article also.  Same exact results.  If I screwed up at least I was
>> consistent ;-)
>>
>>
>> If anyone builds a resonant speaker that produces sufficient volume, I'd
>> like to get in on the details.
>>
>>
>> Clearly, I see where resonance has value but I just can't get the volume I
>> need.
>>
>>
>> I now wonder if the 1/8" centered hole in the plastic was suspect since
>> the recently posted Youtube video clearly had something on the order of 1/4"
>> or larger.
>>
>>
>> 73, Stan WB2LQF
>
>
> --
> Regards, Joe, K8JP/V31JP, Ronnie, Marty & Sidney Pontek
> 2129 CR 1229
> Pittsburg, TX 75686
> U.S.A.
> or
> P.O. Box 280, Dangriga, Stann Creek District
> (Hopkins Village) Belize
>
> 903-204-2318 (My TX cellular)
> 903-884-5990 (Skype telephone number, Belize & TX)
> Also, K8JP, member FOC-1743, CWops-876, QCWA-LM21894, OOTC-4607, A1OP,
> SKCC-3171T, NAQCC-5798, Flying Pig-2819, FISTS-7625CC951, A1C-2299, SOC
> 1075, 10-10 22977, PG1915841, CW Rag chewers #21,
> Skype: v31joepalooka
> Facebook: Joe Pontek
> I am looking for Vibroplex Model X, Double lever and prefer basket cases to
> restore.
> LotW
>
>
> ______________________________________________________________
> CW mailing list
> Home: http://mailman.qth.net/mailman/listinfo/cw
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:CW at mailman.qth.net
> CW List ARCHIVES: http://mailman.qth.net/pipermail/cw/
> Unsubcribe send email to
> cw-unsubscribe at mailman.qth.net
> Subscribe send email to cw-subscribe at mailman.qth.net
> Support this email list: http://www.qsl.net/donate.html
>
> =30=