[Boatanchors] Converter.

[Richard Knoppow]

    I wonder how one deals with the extra symbols on a touch tone phone, 
hash and star (asterisk). Maybe the converter has to have some buttons 
for these.

On 9/7/2023 9:03 AM, Jacques Fortin wrote:
> Beware for those that want to build the "pulse to touchtone" converter
> depicted in the web address below.
> It was designed for the British Telephone (BT) standards and the North
> American ones are different.
> Just to begin, in the NA Bell system, the 48V line supply POSITIVE side is
> GND, the NEGATIVE is the "line".
> It looks to be the reverse for BT....
> 
> 73, Jacques, VE2JFE in Montreal
> 
> -----Message d'origine-----
> De : boatanchors-bounces at mailman.qth.net
> <boatanchors-bounces at mailman.qth.net> De la part de Glenn Little WB4UIV
> Envoyé : 7 septembre 2023 11:25
> À : boatanchors at mailman.qth.net
> Objet : Re: [Boatanchors] Converter.
> 
> My buddy Google came up with many.
> Here is one:
> https://www.mattmillman.com/projects/building-your-own-pulse-to-tone-convert
> er/
> 
> Glenn
> WB4UIV
> 
> On 9/7/2023 9:59 AM, B Riches via Boatanchors wrote:
>> Any ideas on a converter that can take the pulse output from a rotary
> telephone and convert it to touchtone output?
>> Would be cool to be able to use an old rotary phone on today's
>> landline phone system
>> 73
>> Bill, WA2DVUCape May
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> --
> -----------------------------------------------------------------------
> Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
> Amateur Callsign:  WB4UIVwb4uiv at arrl.net     AMSAT LM 2178
> QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
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-- 
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998