Surf PI Pro

[Carlos]

Thanks!!!!!! Samii

[LukaZ]

signal shape on my surf Pi detector; https://imgur.com/168RoiK

signal shape, first and second sample; https://imgur.com/qIyEAcw

[Gokhankuru59]

Merhabalar hepinize minnettarım. Sonunda ?alıştırdım. surf pi harika ?alışıyor. sevgiler..

[Qiaozhi]

Merhabalar hepinize minnettarım. Sonunda ?alıştırdım. surf pi harika ?alışıyor. sevgiler..

Please read the forum rules -> Basic Rules of the Forums
and make your posts in English.

[Hammerhead]

Please Help Mosfet irf 9640 Extreme heat What's the reason

[kt315]

the impulses are absent on the GATE. check them by o-scope.

[ionut_mtb]

It can be also high frequency, pulse width too large, coil wire too big (less resistance), coil shield without gap (shorted)

[Hammerhead]

Mr Kt315 Mr ionut mtb I'm sorry for not responding right on time Internet is very weak It just comes On the first of every month 10 Only then cut Thanks for your concern I have many questions I hope you can help me My language is bad Use google translate thank you

[Harp]

What is correct voltage on +IN and -IN pin of first LM358? My output is go hi...
Till now I "fix" this problem with capacitor on 1st sample opamp input, but I am not happy with that. I try a different coil and suspect the problem lays in some pcb part from my scratch.

[HARI]

Hello, All
I'm interesting with Surf PI Pro. What do you thing if we add VCO into the Surf PI Pro's schematic? thanks

[Carl-NC]

Hello, All
I'm interesting with Surf PI Pro. What do you thing if we add VCO into the Surf PI Pro's schematic? thanks

It would not be difficult. Some other PI projects use VCO audio that could be adapted.

[HARI]

thanks Mr. Carl-NC for your response. do you have a sample from Surf Pi + VCO, if you have would you send me, please?

[surfdetector]

Hello, All
I'm interesting with Surf PI Pro. What do you thing if we add VCO into the Surf PI Pro's schematic? thanks

surf-with-vco (1).pdf

I found this one using the Search function.

[HARI]

thank you very much Mr. surfdetector. by the way, have you try this, before? is it work? could you share your experiences with this Schematic Please.

[surfdetector]

thank you very much Mr. surfdetector. by the way, have you try this, before? is it work? could you share your experiences with this Schematic Please.

I have not tried this. I searched for it on the Forum after seeing your question.