Delta Pulse

[rajesh]

coil 17 inch

hi kt315 thank for help

Inductance0.4547 mHDC Resistance1.0443 OhmsWire Gauge20 AWGWire Diameter33.4 mils (1 mil = .001 in)Coil Length0.12 inCoil Inner Diameter17 inCoil Outer Diameter17.4676 inAverage Turn Diameter17.1717 inWire Length103.3974 feetCopper Weight0.3197 poundsTurns23Levels6.4017
this is good or not ?.................rajesh

[kt315]

this is good or not ?

if your DP is working good with this coil then this is good. much people did according this thread info and had got only unstable working schematic! so what my suggestions will cost now for you if you do nothing? from nothing you will get ONLY nothing! if you do anything you get the expirience and more info than I am able to give it you now and in the future!

[kt315]

recovery at lake

[raff33]

hi raff can you tell me 0.5mm wire = which a.w.g. copper

hi rajesh,
0.5mm wire #24 awg, i hope this site help you
http://www.powerstream.com/Wire_Size.htm
good luck

[raff33]

I do not mean to replace MOS-FET with 7909. you add this IC for to supply all schematic by stabilised voltage. test all accumulators - this is your problem! one AA size unit must give you 9-10 A of current on your digital tester in full charged state! if you do not get this current - you do not get the stability NEVER MORE!

hi kt315 ,
test all accumulators - this is your problem! one AA size unit must give you 9-10 A of current on your digital tester in full charged state!
please if you can explaine me more , i am a beginner and many thanks..................
i see your photo ....what the diffirence deep by TM808 and your DP?

[Uykusuz]

Hi,

This is my new delta pulse or xr71 with discrimination
http://www.youtube.com/watch?v=ETGWg-ahVR8

[kt315]

folks,

I have tested my last mod and was very amazing that it is not working good I was dream. so please do not do this mod with 7909.
stability is great but sensitivity is very low.

yours

[kt315]

hi kt315 ,
test all accumulators - this is your problem! one AA size unit must give you 9-10 A of current on your digital tester in full charged state!
please if you can explaine me more , i am a beginner and many thanks..................
i see your photo ....what the diffirence deep by TM808 and your DP?

what you see HERE?

REMEMBER!

you must test your batt ONLY 1-2 seconds in this mode!
it is a short circuit for your batt!

is not TM-808. it is TF900. DP is more sensitive with coil 1*1 m than TF900.

[zoro111]

hi kt315,
you mean replace irf840 with 7909 ?
i find a mistake in compesant 1.5nf , now my DP is better it can detect a canet coka at 85cm , but is not stable
thanks for helping

Hello

I want to ask did you bought this device from Turkey?
What is the price?

Thanks

[raff33]

hi zorro,
i did't by it by i am traing to built

[steaua581]

Delta Pulse

I have checked all based on schematic did all on osciloscope but same problem.With a 25 cm coil 32 turns im detecting at about the same distance
as i am using the 40 cm with 23 turns 0,5 wire.Dont know why.... Poor detecting a spray can 330 ml with 40 cm coil at 50 cm only...
With the 25 cm coil i get a big coin at 16 cm maximum....

Regards
Marius

[mikebg]

I have checked all based on schematic did all on osciloscope but same problem.With a 25 cm coil 32 turns im detecting at about the same distance
as i am using the 40 cm with 23 turns 0,5 wire.Dont know why.... Poor detecting a spray can 330 ml with 40 cm coil at 50 cm only...
With the 25 cm coil i get a big coin at 16 cm maximum....

Marius, what is the width of your TX pulse?

[steaua581]

Delta Pulse

Hello Mikebg and forum,
I have 10mS pulse TX

Regards
Marius

[mikebg]

Hello Mikebg and forum,
I have 10mS pulse TX

This is impossible. The pause between TX pulses is so large. See the width of pulses above in this thread posting #1024!
Mike-BG

[steaua581]

Delta Pulse

Hello Mike Bg and forum,
Thanx for your help ..You think instead 80uS arround 100uS on TR 2 will be allright?

Regards
Marius