Working first time!
Posted: Wed Dec 25, 2013 9:36 pm
Well almost, just had to switch IC3 & IC4 as possibly expected per the instructions. Also had to reverse the mis marked green LED. Assembled as a first time kit with my 14 yo granddaughter as our Christmas project(I am an experienced electronics hobbyist).
http://youtu.be/EfvGvtUsW7U
Day one was the orientation, solder training and main board build. Day two was interrupter and initial system testing. Initial low power testing uncovered the green LED problem. Day three was final assembly and final test. Each day was ~ 4-6 hours.
Since the manual makes a strong point on secondary grounding we used left over 14 AGW primary for this wire. Our secondary measured 225 ohms so we used five turns on the primary instead of six. Primary was wound CCW.
Set-up was per instructions and on the floor of an outdoor lanai. Nice 12-18" sparks with minimal flash-over. For the most part power was kept at or below just a hair above 1/2. Seems that occasional flash-over would start after about two minutes of music but was eliminated by reducing the power a bit. We played three plus minutes about six times tonight with at least five minute breaks. Primary was noticeably warm to the touch but secondary stayed cool after each play.
All in all a fun Christmas project with my granddaughter!
http://youtu.be/EfvGvtUsW7U
Day one was the orientation, solder training and main board build. Day two was interrupter and initial system testing. Initial low power testing uncovered the green LED problem. Day three was final assembly and final test. Each day was ~ 4-6 hours.
Since the manual makes a strong point on secondary grounding we used left over 14 AGW primary for this wire. Our secondary measured 225 ohms so we used five turns on the primary instead of six. Primary was wound CCW.
Set-up was per instructions and on the floor of an outdoor lanai. Nice 12-18" sparks with minimal flash-over. For the most part power was kept at or below just a hair above 1/2. Seems that occasional flash-over would start after about two minutes of music but was eliminated by reducing the power a bit. We played three plus minutes about six times tonight with at least five minute breaks. Primary was noticeably warm to the touch but secondary stayed cool after each play.
All in all a fun Christmas project with my granddaughter!