Ah. thanks. I was looking for a screw-in pea-lamp bulb in a socket. I'll go look more closely. My circuit says the connection to the rx socket does not go through the bulb so I query what Niels says.
Off the shelf A/D converters (mostly single chip) have come on in leaps and bounds in recent years, thanks to (dictated by ?) the mobile phone industry. I think most cell phone base stations just dow
