4 ms·
Way back... I still use a good old GPO rotary phone. Only thing you sometimes have to retrofit is the capacitor on the ringer circuit, as they're usually dead,
by madaxe 13y ago
Way back... I still use a good old GPO rotary phone. Only thing you sometimes have to retrofit is the capacitor on the ringer circuit, as they're usually dead, or not big enough for today's lower voltage lines.