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

Elecfreaks - OSHW box

Elecfreaks - OSHW box

.:madworm:.
09 Nov 2012 124
Quite nice, but not much of the printed stuff survived. The whole box was wrapped in sticky tape.
Test jig for DSOs

Test jig for DSOs

.:madworm:.
21 Apr 2012 117
The purpose of this device is to create hard or even impossible to trigger pulses. It supports 3.3V and 5V voltage levels using a analog multiplexer chip. The protoboard is available at elecfreaks.com - quite good stuff.
Test jig for DSOs

Test jig for DSOs

.:madworm:.
21 Apr 2012 91
The purpose of this device is to create hard or even impossible to trigger pulses. It supports 3.3V and 5V voltage levels using a analog multiplexer chip. The protoboard is available at elecfreaks.com - quite good stuff.
Elecfreaks freebees - SO adapter

Elecfreaks freebees - SO adapter

.:madworm:.
29 May 2012 84
Elecfreaks freebees - adapter board

Elecfreaks freebees - adapter board

.:madworm:.
29 May 2012 112
SOIC Adapter

SOIC Adapter

.:madworm:.
07 Jul 2012 132
I'll test this board with an MBI5030 LED driver - or so I thought. The MBI5030 comes in an SO package alright, but with 1.00mm pin pitch. This adapter is for 1.27mm pitch. DOH!
SOIC Adapter

SOIC Adapter

.:madworm:.
07 Jul 2012 126
I'll test this board with an MBI5030 LED driver - or so I thought. The MBI5030 comes in an SO package alright, but with 1.00mm pin pitch. This adapter is for 1.27mm pitch. DOH!
Flower shield

Flower shield

.:madworm:.
07 Jul 2012 175
Got this one for free. At least I don't remember ordering or paying for it ;-)
YauDL - Dummy Load

YauDL - Dummy Load

.:madworm:.
15 Jun 2012 212
V0.1 board assembled. It works OK once all the bugfixes have been applied to it. Left-over PCBs might be found here .
Dummy Load V1.00 PCB

Dummy Load V1.00 PCB

.:madworm:.
03 Jul 2012 135
A few minor nuisances made it into this one, but I can live with them.
The same 2 MOSFETS again

The same 2 MOSFETS again

.:madworm:.
15 Jun 2012 170
Bodge capacitors

Bodge capacitors

.:madworm:.
15 Jun 2012 292
I had to add these two (back-to-back) to get the thing to run stably. I don't know if it is the dummy load or the DUT that starts to oscillate...
YauDL-V0.1 - backside

YauDL-V0.1 - backside

.:madworm:.
15 Jun 2012 173
I got the boards today. Left-over PCBs might be found here .
2 P-CH MOSFETS

2 P-CH MOSFETS

.:madworm:.
15 Jun 2012 197
They are used as reverse polarity protection. These tiny SOT23 parts (AO3401) are really quite beefy. They exhibit about 50mOhm (logic level drive) and can take up to 4A each. The most they will have to tolerate on this board is 2.5A each. I got these on ebay. A pack of 50pcs is about 12$ including shipping.
Dummy Load - backside

Dummy Load - backside

.:madworm:.
15 Jun 2012 194
Believe it or not, but I couldn't find a battery holder with usable CAD drawings.
Dummy Load V1.00 PCB

Dummy Load V1.00 PCB

.:madworm:.
03 Jul 2012 128
A few minor nuisances made it into this one, but I can live with them.
YauDL-V0.1 - frontside

YauDL-V0.1 - frontside

.:madworm:.
15 Jun 2012 202
I got the boards today. Left-over PCBs might be found here .
Regulator + TANTALUM caps

Regulator + TANTALUM caps

.:madworm:.
15 Jun 2012 194
It WILL NOT WORK with ceramic capacitors...
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