It's an old radio

E - Teardown


Folder: Electronics
Looking at the innards of electronic devices.

Weller WSM 1 - teardown

10 Nov 2011 101
I don't know what's underneath the LCD.

Weller WSM 1 - teardown

Weller WSM 1 - teardown

10 Nov 2011 91
Bodge capacitor at the bottom.

Weller WSM 1 - teardown

10 Nov 2011 87
Capacitive keys in the lid

Semi broken WMRP RT3

07 May 2013 150
The tip is wasted, so I cracked it open. Will be thrown out once I have a replacement.

Lot's of TDAs on there

All of it

23 Jan 2012 87
I like these multi-function potentiometers. Maybe I will save them from getting recycled too soon.

Tuner input

Gets warm

Analog hell

Strange dots

Passive frequency... whatever

VW Beta 4 radio

23 Jan 2012 93
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!

Old lipo

18 Feb 2012 86
The top chip is a dual N-channel mosfet (TPCS8205), the bottom is the management chip (SC451). Which is supposed to do over-current and over-charge protection. From what I gather from the datasheet, over-current condition is detected by a voltage drop of the cell.

Bread cutter - Safety switch

16 Nov 2012 163
Supposed to prevent accidental activation, as it requires to press two non-adjacent buttons in the right sequence.

Bread cutter innards

16 Nov 2012 157
100W DC motor. Sufficient for cutting most breads. I don't need it anymore.

DC motor with fan

16 Nov 2012 130
Not efficient, but sufficient.

Bread cutter innards

16 Nov 2012 137
100W DC motor. Sufficient for cutting most breads. I don't need it anymore.

322 items in total