dingo31
19-02-24, 18:10
Asa a aratat primul radio portabil. A fost prin 1923. Pe atunci nu existau nici macar minusculii tranzistori, ci doar voluminoasele lampi catodice cu filament incandescent alimentate la 6.3V
https://en.wikipedia.org/wiki/Esther_Marion_Armstrong
https://i.postimg.cc/jj7bc6vn/radio.jpg (https://postimages.org/)
---------- Post added at 17:10 ---------- Previous post was at 17:07 ----------
Am gresit locul postarii, rog admin sa stearga sau sa mute postarea la locul potrivit
https://en.wikipedia.org/wiki/Esther_Marion_Armstrong
https://i.postimg.cc/jj7bc6vn/radio.jpg (https://postimages.org/)
---------- Post added at 17:10 ---------- Previous post was at 17:07 ----------
Am gresit locul postarii, rog admin sa stearga sau sa mute postarea la locul potrivit