![]() My research says that a rusted razor blade may work too. The bluing is some sort of oxidized coating from getting heated up, it probably keeps it sharper for longer. – Soldiers were given blued razor blades as part of their supplies. If you get a station in sorta good, but it’s not perfect, you may be able to correct that by adding extra loops. The amount of coils does matter for the radio station. If it’s not exact, it shouldn’t be a problem. I kept getting distracted from counting, so I ended up counting after winding. Wrap the wire around the tube 120 times and take time to make it smoosh together. I used tape to hold it to the cardboard tube, but in retrospect, poking a hole and tying it on would be better. I’ve seen radios made with really thin wire, like I used, to thicker wire almost as thick as a staple. – I made this with magnet wire I had lying around. Otherwise, you’ll have to blue it by heating it up) Razor blade (If you can find a Blue one like the “PAL Super Single Edge” then great.Take all the safety precautions necessary to avoid burning and cutting yourself. Also, for this project I used a propane torch to blue my razor blade. There are lots of stories on the internet about radio enthusiast’s projects getting struck by lightning. There aren’t many safety issues here except for lightning and fire and the razor blades. ![]() I had problems with my razor blade and then also had problems getting the ground the wire attached tightly enough to the radiator to make a grounding connection. In fact, in a recent email, he mentioned that they were encouraged to make radios and “learn by doing.” Radios were the hottest technology of the time and after the exhilaration of getting this radio work, I can understand! You may not be able to get it to work at the first hookup. My Grandpa Charlie made his own radios in the 30s and during the war as well. Special Offer: Save Up To 50% On J5 Tactical Flashlights Today! Only on
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