.:madworm:.'s photos with the keyword: radio

Backlight lamp. There's a voltage drop of 1.2V across it.

Backlight lamp. There's a voltage drop of 1.2V across it. And it still works - sometimes. I wanted to replace it with a LED, but the clock only runs with a single AA cell. I'd have to add a boost converter and some intelligence to make it work. Maybe later.

A light sensor. It is used to activate the backlight by waving your hand over it. It probably detects IR.

Closeup on the chips.

Backlight lamp. There's a voltage drop of 1.2V across it.

Backlight lamp. There's a voltage drop of 1.2V across it.

Display removed, 2 chips revealed.

Quite old, can't find a manual for it - and it has its quirks.

We've had a few cold days and my car wouldn't start anymore. It did a few 'wup wup wup-s' and that was it. Today I tracked down my radio to be the culprit. When I measured it today I determined it to have a standby consumption of 1.44W (120mA). And that sucks the battery dry in about 10 days. Something must have broken, as it didn't do that before. I couldn't find any obvious things like blown caps. The main amplifier gets a bit warm without any load attached and there is absolutely no signal reception anymore... DOH!

I like these multi-function potentiometers. Maybe I will save them from getting recycled too soon.