Do you any of the "oscillators in a can"?1MHz oscillator for AM radio transmitter circuit.
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Almost every company that makes crystal oscillators makes one at 1mhz. I order through digikey.com
What country are you in?
540 to 1600 kHz Any frequency in this range. You should look for a frequency that is not used in your area.
Is 1mhz open on your radio?
There needs to be a band pass filer, or a low pass filter to kill the harmonics.square wave output
Buy a "full can crystal oscillator" and a "555 Timer IC". Buy several of each , they are cheap and you will probably burn them up.I was looking for an 1MHz oscillator for AM radio transmitter circuit. But I couldn't find one with the 4 pin crystal quartz oscillator. How to make an oscillator by myself with basic electronics materials? Any Circuit or ideas?