Odd and old
How things used to be and how they are now. This page is about
electronics that are not in use anymore but still aren't ready for the
museum yet.
IR recievers

Left is from a luxor TV. Label says "Art. nr 55
20871-01". Inside the device is a circuit board. Right unknown. Label:
"03307061". Middle is modern IR-reciever. (HA7375)
Delay Line
Delay lines delay a signal that enters the device for a specified time. The signal enters and then exits the other side.

Left is and old one, right a modern device.
Tuning Meter

A tuning meter from an old record player/tuner/amplifier system. The
bar turns red when the reciever is properly tuned to a radio station.
It does this by rotating a cylinder when voltage is applied across the
wires. A
LED is usually used for the same purpose today.