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How to make an Oscillator for AM radio transmitter?

Thread starter #1
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?
 

audioguru

Well-Known Member
Most Helpful Member
#2
Do you have a license to operate a radio transmitter on the AM broadcast band that will not cause interference to other radio stations or other frequencies?
A very low power AM radio transmitter might transmit as far as across the street but it can cause interference to a neighbour who is listening to an AM radio station, then it is illegal.
 

ronsimpson

Well-Known Member
Most Helpful Member
#3
upload_2018-4-12_9-7-14.jpeg
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?
 

ronsimpson

Well-Known Member
Most Helpful Member
#5
1MHz oscillator for AM radio transmitter circuit.
Do you any of the "oscillators in a can"?
We can show how to make a very simple one IC divide down circuit. (divide by 2, 4, 8, 16, 32....)
So a 16mhz oscillator is very common. One IC and you can have 1mhz.
Divide by numbers like 5 is harder and causes some problems.
 

davenn

Active Member
#7
View attachment 112260
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?

to the OP sr13579 ... be aware that these canned oscillators are square wave output ( designed for digital circuits)....
and therefore are full of harmonics and that isn't a good thing to connect an antenna to

Dave
 
#9
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?
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.
 

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