WebA crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received radio signal to produce sound, needing no external power. ... One type used a blue steel razor blade and a pencil lead for a detector. The lead point touching the semiconducting oxide ... WebNov 30, 2016 · The Blue Blade crystal radios appear to still be a thing. Lots of related stuff on eBay. Kit with blue blade, graphite in safety-pin holder: $13.50 shipped Crystal radio experimenter's kit with Blue Blade, galena and iron pyrite crystals, 1N34 and Schottky diodes: $25 shipped Lots and lots of other crystal radio stuff on eBay.
Gillette "Blue Blades" as a crystal radio detector!
WebApr 7, 2016 · The crystal radio is a timeless learned experience, repeatedly my firstly insight up how a radio works. For quite of us that childhood charm never dies. Take for example Jim Custom, that guy loves to work about vintage scooters, motorcycles, press especially crystal radios (special thanks to fellow coil-winding enthusiast M. Rosen for … WebNov 9, 2024 · Hold the pencil with your non-dominant hand, and place the razor blade or utility knife on top of the pencil. Use your dominant hand hold the razor blade and guide it through long motions as you shave off pieces of the wood. Long, slow motions will keep you from gouging the graphite. Nicks in the exposed graphite could weaken the pencil and ... cinnamon roll belgian waffles
Cornell WW-II Foxhole Razor Blade Crystal Radio Kit With
WebThis may end up as a running list as I improve/modify the radio. For the Coil: 4 meters solid core Cat. 6 wire (4 twisted pairs) 3" OD PVC pipe For the Cat's Whisker Detector: 1 old rust craft blade 1 HB (expierement) pencil Hook-Up wire 1 paperclip Small Piece of wood (to mount on) 3 wood screws (preferably cap but if you want to use counter sunk then you … WebJan 20, 2024 · There is a picture of the radio using a razor blade point contact with a pencil lead, so if you want to really scrimp on the diode, that works too, and you can see how at the end of the video ... WebRough the blade up with some 150 grit sandpaper, fry its ass blue with a propane torch, then start playing with the contact location and pressure. The contact area needs to be … cinnamon roll belly button