Analysis this schematic

[mohandes]

no my means it is true do you think?
becuse i want to set my second pcb to third pcb today and again test
davor why i measure irf by multimeter have -0.85volt
thanks
and dear davor i make a coil, 1.2ohm and thin 350UH,one wire
i can make a coil by phone wire but 2wire .any idea?
and in cupling in oscope i put it on TV-V or TV-H and next takea photo.
excuse for my english

[Davor]

Hi georgi and all
ok finally i think give true resuts, but i can not understand why i dont see 600 or 700 volts on ifr740,look at the pictures,please
if ther are ok say to me, my oscope is 100MH

You need a coil at about 300uH to see any flyback voltage. Otherwise it is only switching up to Vcc.
When you do have a coil, try not to have so many wires going everywhere because 600V can be very painful, and it can also destroy the rest of electronics. For coil connection use only good insulation on wires to prevent arcing. (I must clear my mailbox)

[mohandes]

Hi alonejax
because i think this detector have a Advantage Than pi detector?
this detector have Discriminant but i think most pi have not?ok if you have pcb design ,send for me?

all GURU just say to me for #44 & #43,it is true or not?

thanks all

[alonejax]

hi mohandes

why you dont make delta puls 2?
thats easy and good detector

[mohandes]

ok the last explain for The remaining picture discipline:
1-pin3 555
2-pin 9,10 4053
3-pin11 4053
4-pin6 4538(first 453
5-pin10 4538(second )

























thanks

[mohandes]

an other questuon about pin3 of ne5534.is it true?(or D3 and D4)
ok say to me if i have an error.

[mohandes]

Hi georgi and all
ok finally i think give true resuts, but i can not understand why i dont see 600 or 700 volts on ifr740,look at the pictures,please
if ther are ok say to me, my oscope is 100MH

[mohandes]

[mohandes]

ok i put pictures

[mohandes]

HI porklur
i design my pcb for ps g , and all work i do for make this,i check alot pcb conection and ect for find my error but i think my error in my lf357.i change pin5 and pin8 lf357 toghter in my pcb,tomorrow i will go to collage and check all conection by oscope
I finish 4 pcb and set part but i am going to check all Step by step.my first pcb (power suplly) work well and i finish that about 3 weeks ago,but the second pcb that i put the picture dosent work well , i want finish it but i dont know my problems exactly.

thanks and regards

[porkluvr]

What treasure do you search for?

Hammerhead 1 is very nice and simple, but make sure you can get the parts before you commit yourself.

Although it calls for NE5534, Carl designed Hammerhead with a universal offset-nulling scheme. That means you could try many other opamps regardless of whether the null pins are the same... because those pins aren't used. You would want to use a reasonably fast and quiet opamp, something like LF357 maybe, or OP37. But can you find 74HC221 and the other required parts, in your country?

Hammerhead 1

Hammerhead, Surf PI, and Baracuda, are all reasonably simple.

Do you make printed circuit boards or do you need to purchase?

[mohandes]

Thanks Davor and porkluvr
ok i search and find it,if i can not finish the ps g detector ,what is your idea ?means that what i can make?

[Davor]

NE5534 is not at all uncommon, so just find it. It is a very popular chip and not expensive. Good substitutes of NE5534 are more expensive. Just find the chip.

[porkluvr]

LM5534 and NE5534 are not at all the same. They're not even close. LM5534 is not an opamp, and it does not have eight pins.

WHY don't you "Google" search these devices, pull up data sheets, and then make comparisons for yourself? You can learn by looking at data sheets, and there is a lot to learn.

[mohandes]

hi dear Davor
can i use LM5534P(NE5534P) instead ne5534?