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01-18-2008, 08:55 AM
| #11 |
| Registered User Member |  foxhole radio |
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01-18-2008, 11:55 AM
| #12 | |
| Banned Supreme Forum King  | Quote:
First time I've seen a razor blade used as a detector! Seemed like there was capacitor missing too... ... but it worked... somehow... Again, really sharp! | |
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01-18-2008, 12:19 PM
| #13 | |
| Forum Contributer Supreme Forum King  | Thanks for the link hitnailonhead It's the same one we all made in class , I didn't know it was called a fox hole radio, but now I do  But back then we used the old razor blades , the blue ones (made by Gillette I think) and we used staples , from a desk type stapler ,no paper clips back then that I recall ...we only used paper clips to pick locks in the girls gym locker room... LOL LOL to get our sling shots material.. them things make great rock holders... http://www.routerforums.com/64107-post4.html ============= Quote:
__________________ PodCast videos RWS on YouTube http://www.routerforums.com/86898-post1.html Besure and click on the Up Arrow key ▲ on the Youtube video, you can select other youtube videos on router tables http://www.woodworkingonline.com/?s=dovetail Machine Cut ▼ http://www.woodworkingonline.com/200...cut-dovetails/ http://www.woodworkingonline.com/woo...podcast-store/ http://www.woodshopdemos.com/menu2.htm Bob J. Last edited by bobj3; 01-18-2008 at 09:41 PM. | |
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01-18-2008, 09:35 PM
| #14 |
| Forum Contributer Supreme Forum King  | Such a design without a tuning circuit is pretty useless these days, in an area with several reasonably powerful AM stations, they will all come in at the same time, with the strongest station predominating. The technical description is that it totally lacks selectivity. The oxide coating on the blade turns it into a metal oxide detector, from my experience as a youngster, no where near as good as a Galena crystal with some good hot spots.
__________________ Harry |
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