Electronics Circuit 8

TDA2003 Amplifier Car Audio BCL 18W (with PCB)

http://www.elecfree.com/circuit/car-power-amp/tda2003-amplifier-car-audio-BCL-18w/

Bike Light Flasher

http://www.elecfree.com/circuit/IC-555/bike-light-flasher/

Hot-Wire Foam Cutter, 10

http://www.uoguelph.ca/%7Eantoon/gadgets/hotwire/hotwire.html

Christmas Lights Tester

http://www.uoguelph.ca/%7Eantoon/circ/xmasbulb.html

DC Power Supply

http://www.elecfree.com/circuit/power-supply/dc-power-supply/

4 Transister (C945) tone control mono.

http://www.elecfree.com/circuit/tone-control/tone-control-mono-by-4-transister-c945/

Aviation Band Receiver

http://www.uoguelph.ca/%7Eantoon/circ/aviarx/aviarx.html

DSL Filter (phone-line)

http://www.uoguelph.ca/%7Eantoon/circ/dslfilt.html

60W RF Linear amplifier by mosfet IRF840

http://www.elecfree.com/circuit/power-amplifier/power-amp-mosfet-ocl-60w-by-k134-and-j49-with-pcb/

Hot Wire Foam Cutter, 7

http://www.vatsaas.org/rtv/construction/hotwirecutter.aspx