[GreenKeys] off topic "Telegraph"

[Nick]

That's soooooo cool  !!!

Thanks for sharing the info and links.

Nick  -  N0NCQ



Sent from my T-Mobile 4G LTE Device


-------- Original message --------
From: W2HX <w2hx at w2hx.com>
Date: 8/12/19 9:10 PM (GMT-05:00)
To: Nick <creativegardening at hotmail.com>, GreenKeys at mailman.qth.net
Subject: Re: off topic "Telegraph"


It is known as a "dial telegraph" operation is pretty simple. Each pulse moves the needle one letter position.  I have one from ducretet


http://w2hx.com/x/Telegraphy/Ducretet%20Dial%20Telegraph%201864-1879/


The coffee grinder handle sends pulses to the remote operator and the remote operator's handle sends pulses to the vertically oriented dial shown on the ebay auction.


I think after a message, the needle was pointed to the top "cross" to resync it.


More on the topic:

https://spectrum.ieee.org/telecom/standards/morse-codes-vanquished-competitor-the-dial-telegraph


https://www.prc68.com/I/DialTelegraph.shtml​




________________________________
From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> on behalf of Nick <creativegardening at hotmail.com>
Sent: Monday, August 12, 2019 6:40 PM
To: GreenKeys at mailman.qth.net
Subject: [GreenKeys] off topic "Telegraph"

I found this on eBay :

https://www.ebay.com/itm/ANTIQUE-BENEVOLO-DIAL-ALPHABET-TELEGRAPH-RECEIVER-SENDER-RARE/222262561130?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20140131123730%26meid%3Dafc41302ccd3496d8c2e13223916fa4e%26pid%3D100167%26rk%3D4%26rkt%3D6%26sd%3D162723715101%26itm%3D222262561130%26pg%3D5411&_trksid=p5411.c100167.m2940

Does anybody exactly knows what it is, how it works, is it complete?
If you have any info or even links, please let me know.

Thanks !!!

Nick  -  N0NCQ
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