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Offline Sergio Dennis Sanchez MadrigalTopic starter
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« on: October 27, 2015, 10:04:47 am »
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good signal power

Posted on: October 27, 2015, 08:49:53 am
voltaje regulador of down is not 7805 is 7905, negative current. sorry but the program no options

Posted on: October 27, 2015, 08:51:33 am
pcb view

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Offline 6666
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« Reply #1 on: October 27, 2015, 11:42:54 pm »
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What the poster is saying is that the voltage regulator at the bottom left of the circuit labelled RG2 should be a negative five volt reg.
The power connections to IC2 seem to be missing some details.
Q2 ?
Also found this note which seems to refer to circuit and coils.

Quote:Posted by {author}
surf pi pro midified for to increase power signal.
rx coil is around 100 turns 0,5 mms in 7 cms diameter. cx coil is inverse to rx direction. 26 turns. tx coil 20 turns in 20 cms diameter coil and 0,5 mms



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Offline NE555
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« Reply #2 on: October 28, 2015, 04:18:06 am »
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you misleaded  Violent

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Offline Sergio Dennis Sanchez MadrigalTopic starter
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« Reply #3 on: October 28, 2015, 09:06:15 am »
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that ic is lm7905

Posted on: October 28, 2015, 08:58:42 am
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