Phil M0OFX<p>Finally pulled the trigger on a purchase I've been umming and aahing about for maybe the last year. I now have a pair of Teli Contact portable acoustic-coupler Telex transmitters on the way, with the matching printers.<br>I think these are cool not just because they're handheld Telex TTYs, but also because they had crypto onboard... initially DES, but later on a backdoored NSA-supplied algorithm: <a href="https://www.cryptomuseum.com/crypto/philips/px1000/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cryptomuseum.com/crypto/philip</span><span class="invisible">s/px1000/</span></a><br><a href="https://digipres.club/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>retrocomputing</span></a> <a href="https://digipres.club/tags/tty" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tty</span></a> <a href="https://digipres.club/tags/TeliContact" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TeliContact</span></a></p>