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  #1  
Old 01-29-2013, 07:33 PM
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antonis antonis is offline
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Default icl8038 & amplifier!
FUCTION GENERATOR

http://www.4shared.com/photo/kSyK4Hf...or_circui.html
http://www.4shared.com/photo/rU3xMzI...or_compon.html
http://www.4shared.com/photo/7k6GdQ0z/pcb_jumpers.html
http://www.4shared.com/photo/VcF8qJl...inal_size.html
http://www.4shared.com/folder/TvKH1k...generator.html

AMPLIFIER 40 WATT

http://electroschematics.com/513/1-c...att-amplifier/
ALWAYAS BE CONNECTED AMPLIFIER AND FFUCTION GENERATOR TO BRAKE THE MAGNETIC FIELD YOU CAN USE INVERTERS! TO CHARGE USE AMPLIFIER OVER 500WATTS!
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  #2  
Old 01-30-2013, 07:24 AM
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Sneshko Sneshko is offline
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Bravo аntonis !
Congratulations!
This is a very elegant solution to any MFD device!
Thank you very much!
Regards!
Sneshko
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  #3  
Old 01-30-2013, 07:40 AM
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Sneshko Sneshko is offline
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Dear Antonis!
Would you like to share with us your project of Frekvrencmeter the image below?
Schematic, PCB, Parts list ... The complete project?



Thank you very much in advance!!!
All Best!!!
Sneshko
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  #4  
Old 01-30-2013, 08:16 AM
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It is better and maybe more cheap to buy from ebay a DDS generator with frequency read.
Then connect a power amplifier with a transformer and you are ok.
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Old 01-30-2013, 10:39 AM
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Thanks for the information Geo!
However, Serbia is not possible to pay Ebay.
Balcan is hir...
Regards!
Sneshko
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  #6  
Old 01-30-2013, 11:47 AM
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Originally Posted by Sneshko View Post
Thanks for the information Geo!
However, Serbia is not possible to pay Ebay.
Balcan is hir...
Regards!
Sneshko
Very bad....
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  #7  
Old 01-31-2013, 03:00 PM
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http://www.seekic.com/circuit_diagra...r_circuit.html

frequency generator .
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  #8  
Old 01-31-2013, 03:05 PM
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http://www.google.gr/search?hl=el&q=...w=1280&bih=923
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  #9  
Old 02-01-2013, 08:07 AM
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Thank you very much antonis!
Regards!
Sneshko
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  #10  
Old 03-14-2013, 04:20 AM
goldfinder goldfinder is offline
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Default The 8038
This chip has been around for years. It is fine if you don't care about frequency accuracy. It will drift in frequency depending on ambient temperature so if this is for some kind of electronic dowsing and you want frequency stability this is not what you want.

Also, what is this thread doing in the dowsing section? It should be LRL sections.
Goldfinder
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  #11  
Old 05-04-2013, 04:43 PM
goldfinder goldfinder is offline
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Default Crystal vx RC oscillator
Quote:
Originally Posted by Geo View Post
It is better and maybe more cheap to buy from ebay a DDS generator with frequency read.
Then connect a power amplifier with a transformer and you are ok.
Geo has the right idea on this. Buy a simple off-the-shelf signal generator and amplify the signal (as if amplification does anything!). The chips that use a RC network to get the frequency (e.g. 555 or others) will drift because of temperature changes and the resistor and capacitor both change with temperature, the cap more than anything, so the original frequency being generated changes. A crystal driven or PIC driven signal generator is much more stable.
Goldfinder
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  #12  
Old 04-04-2014, 06:16 PM
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This generator is much better
http://www.longrangelocators.com/for...ad.php?t=19003
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