After I got into examining the sketches I discovered something quite interesting about the power transformer. In all previous designs that I had seen, there was a primary, a base feedback winding and several output windings. What Holt had contrived was a interesting method of assuring excellent coupling of the base winding by using a single strand of wire from a multi-filar bundle that was custom ordered from the wire factory. For example, I think that there was a bundle of 30 strands twisted together, which were all coated in red insulation and one strand of green insulation also twisted together in the bundle, which gave a precise turns ratio together with excellent coupling between the windings.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — BREAKING NEWS – Raspberry Pi maker Premier Farnell bought by Avnet @Avnet
Wearables — This won’t tie your stomach in knots
Electronics — LED colors: what they tell you
Biohacking — Ava The Fertility Tracking Bracelet
No comments yet.
Sorry, the comment form is closed at this time.