News post & update: eleccircuit.com |  |
| FM transmitters, 90-100MHz using two transistors and low voltage Posted: 19 Apr 2015 02:10 AM PDT Today lets to see the simple FM transmitters,90-100MHz that use two transistors, apply power supply with 1.5V battery The coil-L is 8.5 turns of 22 swg wire wound with a inside diameter air core of about 5mm. Then stretch the coil to width of 9 mm. Figure 1 The schematic circuit diagram To tap out […]  |
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