Delta Pulse

[mazari]

many thanks kt315.just i have a question :when i measure the output at pin 6 of lf357 i get 1.2volt.Do you think it is the right voltage?thank you in advance

[kt315]

set MAIN DELAY on minimum, 40us. set PULSE WIDTH in middle pos approx 200-250us. play SENS near 7-8 position and if you can set more do more.

[mazari]

thank you kt315.my coil is 36cm diameter . 32turns 0.5mm which measure 3.4 ohms dc resistance.damping resistor:680ohm 1watt frequency 140hz.bottle iron detected at 5cm very poor detection

[kt315]

1. coil size?
2. target masse/size?

[mazari]

hi for all.I've re-made the Delta Pulse and worked this time, but it detect only at 5cm. I've examined all diodes and transistors and capacitors are all good .Does anyone have an idea what is the problem here?please help me.thankyou

[homefire]

Does anyone have a listing or diagram of Delta / Sniffer trouble shooting test points with nominal expected voltages ?

[kt315]

the schematic is same left. new -

-- you can set 2 LEDs or bicolor one
-- sockets were changed on another 'pops screw style' type http://www.ebay.com/itm/50pcs-2pins-...gAAOSwpLNX~Lut
-- grid poligons, cause was hard to desolder in some places
-- transistors' position in voltage indicator was fixed
-- general optimization

[Toros]

schema new

[ATTACH]40006[/ATTACH]

What's new in the scheme? Two LEDs are united in one double. I do not see another new one.

[mazari]

many thank mr k315.

[kt315]

schema new

[kt315]

no voltage supply on IC's. diodes VD8 VD9 burned.

[mazari]

thank you mr k315.but when i connect a coil irf 840 getting very hot .what is wrong?

[kt315]

.beautiful cut Piercing eyes.do you think that can detect gold?

with magical surahs from holy Quran on your lips you can find gold without the cat and Delta Pulse.

[samii]

Mazari
maybe you need connect a coil?

[mazari]

.beautiful cut Piercing eyes.do you think that can detect gold?