In these pages, you'll find complete building instructions, schematic diagram, parts list, and an explanation of how the kortingscode le mage transmitter works.
How the Li'l 7 kortingscode timfit Works The heart of the Li'l 7 transmitter is the 117L7/M7 GT tube.
He used old-school techniques, building the transmitter on a wooden breadboard with open wiring.
In your initial assembly, leave the coil connections unsoldered until you have tested the unit and confirmed that the coil is working correctly.It doesn't take much.Also shown in the picture, although not in use at this time, are a homemade test speaker used for radio repairs and a Dim-bulb Tester.Use a two-pronged power cord for this project.If you don't have metal-working tools, plastic is easier to work, of course.If you come up with other improvements or suggestions, please send them along so that we can boog 25 jaar getrouwd maken share them with other experimenters.The red dot on the coil helps you identify the pins; it is located between pins 1 and.If you make one, send some email to let us know how you like it!
Solder a 470 resistor between pad 5 and the ground plane.Like old-fashioned breadboard projects, Volker's version has exposed wiring that presents a shock danger.You can experiment by placing a 68 pF capacitor in series with the 150 pf capacitor to drop the total capacitance to about.You want enough space between pads 2 and 3 to fit the body of a 1/4W resistor.Layout Parts layout makes a big difference in ease of construction.Part, description, part.Walter and I both built our units with the tube sticking out the top, which makes it easy to mount the tube socket, but also exposes the tube to possible damage.If you get interested in the topic, check out your local librarythere are a number of books on the subject.
c1 220pf ceramic capacitor.
This radio construction project, including all descriptions, diagrams, photos, and the underlying electronic design, is published here for the noncommercial use of radio hobbyists.