A AM Transmitter...

[Someone Electro]

I need a AM radio transmitter circut.

I want it simple (litle of parts and basic parts)
I want it for a carbon microfone (i don't have other tipes)

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[stevez]

I recall the term "phono-oscillator" being used to describe a simple AM transmitter. You might find what you need by searching under that term. While it seems that a carbon microphone can be adapted easily the old designs might be more amenable to the mic. Some of the "phono-oscillators" were vacuum tube, some solid state.

 

[Someone Electro]

Nope!

It was just worse.

 

[Someone Electro]

I finaly got it !!!

 

[Sherif Welsen]

I finaly got it !!!

So, can you just post it please ?

 

[Someone Electro]

Here it is!

Sory the web site has gone ofline! :roll:

But i have the shematics! 8)

PS:
I re drawd the shematics(with Crocodile Tehnology(a great simulator))

 

[Someone Electro]

Nice isnt it!

Its realy simple!

Tips:
If you get your hends on some powerful transistors try with 9V

Buld a vertical antena for beter performance!

If it dosent run on a batery use a capacitator(big) to get rid of that 50Hz "Hum"

A batrery can run i for a wery long time(curent 2-6 mA)!!! 8) 8) 8)

 

[LesKirschner]

Basic AM-TX

A very simple AM-TX off the web. May help, but then you never know. Les