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Unusual HP-75
12-03-2023, 05:37 PM (This post was last modified: 12-03-2023 05:49 PM by Sylvain Cote.)
Post: #9
RE: Unusual HP-75
(12-03-2023 04:52 PM)Maximilian Hohmann Wrote:  And an acoustic coupler even less so as there is nothing left to test it with...
Not the kind of telephone receiver that fits and not the kind of analog telephone line that will transmit the sound without filtering them away.

I am using Teltone telephone line simulator (TLS) for testing old analog phone/modem/equipment. (Wikipedia, Website, TLS-5 models, TLS-5C/5D manual, eBay)

Sylvain Côté
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Messages In This Thread
Unusual HP-75 - smp - 12-01-2023, 08:44 PM
RE: Unusual HP-75 - Jeff_Birt - 12-01-2023, 08:58 PM
RE: Unusual HP-75 - twoweims - 12-01-2023, 09:22 PM
RE: Unusual HP-75 - Jeff_Birt - 12-01-2023, 09:30 PM
RE: Unusual HP-75 - Garth Wilson - 12-01-2023, 10:14 PM
RE: Unusual HP-75 - Jeff_Birt - 12-02-2023, 12:49 AM
RE: Unusual HP-75 - Maximilian Hohmann - 12-03-2023, 04:52 PM
RE: Unusual HP-75 - Sylvain Cote - 12-03-2023 05:37 PM
RE: Unusual HP-75 - Jeff_Birt - 12-03-2023, 05:42 PM
RE: Unusual HP-75 - rprosperi - 12-02-2023, 01:23 PM



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