PI Audio

[surfdetector]

IC8A is the integrator for the Hammerhead. The Audio schematic shows the circuit starting post integrator so I would think that after IC8A would be the point of connection.

[h9361]

Yes, that is required for gain, glad you got it working.

Dom44, i think you will need to add that cap to your PCB artwork...

Hello
Dear MDtoday.
Before everything, thank you for your excellent work.
I want to use your PCB on HH1. Can you guide me which point of HH1 should connect to input of your PCB?
Thanks.

[Bayu]

Mdtoday terimakasih
Thanks

[Mdtoday]

And transistor pnp make series?? Thanks mdtoday

The PNP transistor is a BC857C or equivalent.

cheers

[Bayu]

Thanks!!

[Bayu]

And transistor pnp make series?? Thanks mdtoday

[Mdtoday]

Master please this vco make transistor, pnp and GSD what number series??? Please help,

JFET PMBF4393 or equivalent

cheers

Mdtoday

[perzo]

Master please this vco make transistor, pnp and GSD what number series??? Please help,

Pn4393

[Bayu]

Master please this vco make transistor, pnp and GSD what number series??? Please help,

[liekwang]

hi mister I want to ask, is there anyone who uses mick audio for scematic dooley TD3X seems interesting

[sbalio1]

Yes can be used

[TufaN]

Hello friends
can this vco circuit be applied to delta plus?

[sbalio1]

...

https://www.youtube.com/watch?v=IZNaDAVcvjI&feature=share

[Mdtoday]

hi mdtoday.
I made the last file, the sound is weak. with a loudspeaker. I added a 10uf capacitor between pins 1 and 8 of lm356 .the sound and loud now

Yes, that is required for gain, glad you got it working.

Dom44, i think you will need to add that cap to your PCB artwork...

[sbalio1]

hi mdtoday.
I made the last file, the sound is weak. with a loudspeaker. I added a 10 uf capacitor between pins 1 and 8 of lm356 .the sound and loud now