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Old 10th September 2003, 06:53 PM   (permalink)
Default A AM Transmitter...

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)

[/code]
Someone Electro is offline  
Old 10th September 2003, 07:44 PM   (permalink)
Default

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.
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Old 11th September 2003, 01:40 PM   (permalink)
Default Nope!

It was just worse.
Someone Electro is offline  
Old 12th September 2003, 04:15 PM   (permalink)
Default

I finaly got it !!!
Someone Electro is offline  
Old 12th September 2003, 04:48 PM   (permalink)
Default

Quote:
Originally Posted by Someone Electro
I finaly got it !!!
So, can you just post it please ?
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when I arrived, I found out I’ve ‎‎walked in the wrong way.
Sherif Welsen is offline  
Old 13th September 2003, 05:26 AM   (permalink)
Default 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))
Attached Images
File Type: jpg AM_Transmitter_eng_.jpg (62.4 KB, 467 views)
Someone Electro is offline  
Old 13th September 2003, 05:40 AM   (permalink)
Default 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)
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Old 18th February 2004, 09:30 PM   (permalink)
Default Basic AM-TX

A very simple AM-TX off the web. May help, but then you never know. Les
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File Type: gif AmTX1.GIF (34.4 KB, 286 views)
LesKirschner is offline  
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