pole impulse pro

[AK48]

more pics

[kt315]

please after reading of my opus. https://www.geotech1.com/forums/show...here-share-out
SORRY FOR THE REMINDER.

[ivconic]

I think KT315 is asking that you don't post the schematic until AK48 has posted photos of the PCB. He wants to build up his archive to 18TB.

Ah so!
And yet i don't know what schematic it would be!??
Don't have a clue.
I saw posted photos of pcb in meantime and i don't recognize it.
On the other hand: i don't remember what was yesterday... not to mention what happened in the past.
Too occupied and focused with what i am doing now; all other things faded completely from my mind.
(I am using some meds on daily basis that helps me a lot. Side effect is lost of memory and memory with huge time holes.)

[eclipse]

I dont want to spoil things but that board looks the same as xr71 sniffer. As addition there might be a voltage reg on the top left and perhaps low bat ckt but thats the old xr71 once again.

[Orbit]

[КУОТЕ = ецлипсе; 280943] Не желим да кварим ствари, али та плоча изгледа исто као кр71 сниффер. Поред тога, у горњем левом углу можда постоји регистар напона и можда ниски цкт бат, али то је опет стари кр71. [АТТАЦХ] 53295 [/ АТТАЦХ] [/ КУОТЕ]:палац: Yes xr71

[kt315]

I think KT315 is asking that you don't post the schematic until AK48 has posted photos of the PCB. He wants to build up his archive to 18TB.

thank you George. you are perfect mindcatcher.
my mistake. i did think ak48 meant FISHER IMPULSE while now i see it is simple shiff sniff.

[AK48]

" i did think ak48 meant FISHER IMPULSE while now i see it is simple shiff sniff. "
it's the Mole Impulse Pro and not XR71 or anything else as you can see on the pics , thank you
power transistor :IRF 540N

[kt315]

if you see a bird and it looks like a duck. quacks like a duck. flies like a duck. then this is most likely the duck.

[eclipse]

Ak48 you are in luck. DELTA PULSE aka Sniffer XR71 is one of the most discussed circuits in the forum. But unfortunately if you look under your Mole impulse hood yoi will see nothing more than XR71/Delta. Its not bad its just one more clone and it uses one very popular circuit board from the past. It is one of the first xr71 boards ive came across actually.
.

[kt315]

" i did think ak48 meant FISHER IMPULSE while now i see it is simple shiff sniff. "
it's the Mole Impulse Pro and not XR71 or anything else as you can see on the pics , thank you
power transistor :IRF 540N
[ATTACH]53296[/ATTACH]

you wrote in subject POLE. its first. second. power transistor is MOS-FET IRF840.

[AK48]

sorry but when i opened the box , i found IRF 540N N-CHANNEL MOSFET

[kt315]

google gives me IRF540 is just on 100V. it does not have to work.
change it on IRF740.

[eclipse]

It will work however voltage will be clamped to about 110-120V which is too low for my taste for this design.
As KT315 says solder IRF740 or IRF840 (runs hotter!).

[AK48]

thank you for the advice , i'll change it but what about the LM 7812 ? is it the correct reg or it is LM 7805 ?

[eclipse]

I will suggest that this is regulator for the main power supply this is the only modification on the board done from the reference XR71 design.
If you are not sure what the component was - It could be 7810, 7812 or even 7910, 7912. I don't think it's 7805.
I would suggest a little more caution - check where PIN1,2,3 of the regulator connect to.
One of the pins could be connect to the fuse, battery plus or battery the other pin should be connected to mosfet source (S). You need to check to see if we are talking for a positive or a negative regulator. So check the connections.