On the Parking of campers and motorcyclists will be useful to fluorescent. It gives good coverage and is very economical. As power supply used by the DC / DC Converter transistor type П215 (П202, П217, P4) that can run on batteries.
Transformer Tp1 is wound on a ferrite ring from a deflection system of the TV or on the core stronica. The primary winding has a 50 — 70 turns of wire of PEV of 0.4—0.5, the secondary — 30 — 35 turns of PEV of 0,7 — 0,8, and the third 750 — 1200 turns of wire sew 0,17 — 0,2.
Transistor T1 for better cooling has a double U-shaped radiator.
S. JUICES, teaching 9th grade, Kuibyshev
Recommend to read
SHOES FOR THE CHRISTMAS TREE
For setting up a small Christmas tree to make the d-pad is not a problem. I set out to build a universal that is not dependent on the thickness of the barrel. Took two cut a metal...
PENCIL — FOR A MOMENT
If the drawer have a lot of pencils, markers and pens — do yourself here's a handy table pencil. It will require a minute of free time, plastic, ceramic or glass jar and strips of thick...
