Adjustable Load Stripboard Veroboard Layout

I've done a similar adjustable load before but I've tweaked this one a little so it performs better and so on.
PSU UT = power supply under test
the one I made can sink over 2 Amps. you just need to make sure you have a big heatsink.!

it's also a good idea to mount the big resistors offboard cause they get hot.

Dark Activated LED Flasher Striboard Veroboard Layout

Around here we get the odd brown out because the local transformer station is inadequate and hasn't been updated since the 50's so obviously it can't handle the fact that houses have more than one electrical appliance. anyway I made this low power device to be put with my torch so I can find it when all the lights go off.

after you build it - you adjust VR1 so that the LED blinks when it's dark and it should last quite a while with 2 1.5v batteries powering it.
try and get the lowest power LED you can find - remember, it will also blink all night.

Rez Overdrive Stripboard Veroboard Layout

I've been working on a lot of projects recently which I couldn't really post on here due to complexity etc.
but today I thought I would try and design something for my blog using one of the cool parts I got from Linear Technology
and thus born was the Rez Overdrive which you can use on guitar (demo at bottom) or synths etc.
the Whole circuit only draws 2.45543mA (yes, I got a 6.5 digit meter recently - it's a Keithley 2015 THD - check it out if you like multimeter porn)) so in theory it will last a hell of a long time if you use batteries.

Also I added D1 as an afterthought to protect the circuit from reverse polarity accidents - so it isn't on the schematic.