AND NIGHT — DAY

AND THE NIGHT — DAYOn 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

  • ROCKET-SURVIVORROCKET-SURVIVOR
    The proposed model has a classic pattern glider A-2 "Hawk" in a reduced form. The main material for its construction - balsa. I must admit that over the last three or four years, such...
  • BABY-HEROBABY-HERO
    When working with metal often must bend, to stamp, to pull from sheet materials of different parts, figure out, puncture, cut them all kinds of holes. Such operations are performed with...