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Friday, May 13, 2011

Simple radio circit diagram



some persons asked simple radio circuit diagrams.Here you can see very simple circuit diagram.When I tested this my first time I enjoyed very much.When the signals are coming you can here some sounds like ne ne nee nic nee nee nee nee.so test this and enjoy.







Note:

# Don't use more than 4.5V

# Build this on a pcb

#If the signals don't come move the main coil here and there then you can here some sounds.

# Firstly this circuit was designed by Elmer G. Osterhoudt in the early 30's

13 comments:

Nipuna said...

This is a bit confusing. Can u help me?
Where would the + and - terminals from the power source be connected?
How many turns should be on the coil?
Is the coil tapped in the middle as the diagram suggests? thanks

Zam said...

1) Yes this is taped at the middle( after turning 1/3 )

2) According to the Gage that you use and according to the turns that you turn the frequencies are changed.L1: about 30-35 feet of 22-gauge enamel wire.

3)This circuit doesn't need battery power it runs with the power of radio waves

aisha said...

I would really like your post ,it would really explain each and every point clearly well thanks for sharing.
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hafsa said...

Wao Amazing Blog i like it soo much very nic blog
I Like It

sheena said...

Hey buddy that was a gud post
I have gone through your site information and it is the same opportunity that I was looking for. The facilities, the process that what you are offering are perfectly matched to my Expectation & very soon you will get Response from my side.

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Kiran said...

dear sir,
what should be connected to J1.please replay me fast.

thank you

Zam said...

J1 is a headphone jack you can jack your head pone jack for there.

PANDHARI LONDHE said...

what is mean by D1, C1, C3, C2, L1 and J1..?
please give meaning of these.

Sami Chema said...

yes it help me..thanks for sharing such a useful information
Live

Engineer said...

plz tell me to were connect + & -
and also tell me about no of turn of L1 in detail

Zam said...

you can run this circuit with out a battery

susarla said...

sir can i use battery

sanskar gautam said...

you mentioned not to use more than 4.5 volts. but where i should connect the + and - terminal?

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