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A small two stage transistor AM transmitter in 2025 | Electronic circuit projects, Transistors, Circuit projects
by Free Radio Beacon This is two-stage transistor AM transmitter for the shortwave band, which gives about 1 watt in output. You can use a 2N2219 or a 2N3553 in the final stage. The output with a 2N3553 is aprox. 1.8 watt @ 12 Volt. The transmitter seems to give more output when you use 7 turns instead of 4 turns in the secondary section of T1 (the coil between oscillator and final stage). It will work fine between 6 and 8 MHz. Try with different (power) transformers to modulate the…
