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Offline apocalyptoTopic starter
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« on: December 21, 2009, 10:07:47 am »
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I finish the making of delta pulse, I tested it..................nothing  Angry

- Battery : 12V 2.3 AH

- Serach coil : ?25 cm, 30 turns of 0.5 enemable CU

- Volume capacitor (100 ohm) not assembly

Results :

- Nothing.
- IRF 740 Heat in 5 min working.
- very Low noise from Coil search

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« Reply #1 on: December 21, 2009, 03:26:19 pm »
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check your pcb,parts placements and solder. refer to this schematic.

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Offline apocalyptoTopic starter
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« Reply #2 on: December 22, 2009, 05:12:33 am »
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I need some points test (Example Voltage between A and B must equal to X) Please help me
I add that there isn't a light from  VD16 please help me

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« Reply #3 on: December 22, 2009, 07:25:34 am »
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in the schematic you can see all what happened to your circuit, eg. errors,test points,voltage,

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Offline apocalyptoTopic starter
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« Reply #4 on: December 22, 2009, 08:01:52 am »
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- NO light from VD16 (Labeled Charge)
- Light from VD17 (Labeled LOW  / color red)
- I measured the voltage +E and -E between 1 and 8, 1 and 4 of D6A (+5.xx and-5.xx volts)
Please help me
Best wishes


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Offline GoldDigger1950
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« Reply #5 on: December 22, 2009, 11:57:35 am »
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I can't tell for certain because the pictures are a bit fuzzy but it looks like two of your ICs might be upside down. Check the orientation of the chips.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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Offline apocalyptoTopic starter
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« Reply #6 on: December 23, 2009, 06:23:10 am »
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thank you GoldDigger1950 i think that IC's orientation is correct refered to the pcb whit component, but when i mont the volume capacitor i have finaly i sound, but its a repeated sound (~10s)  i whould like to know how i must regulated my delta pulse i hav'nt oscillo.

thank you to everyone helped me  Clapp
A continued sound frome my delta pulse please help me
thank you
A continued sound from my delta pulse please help me

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« Reply #7 on: December 23, 2009, 09:02:51 am »
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try to power on your dp w/out coil attached. maybe impedance mismatched on coil. or maybe your coil have lower resistance try 2ohm resistance of coil. if low battery indicator lights even your battery is full charge,meaning have shorts on the circuit or parts orientation possible mosfet,transistors,or bridging solder.

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