Threshold Pot doesn't work

[h9361]

Since i'm using a sealed acid battery (12V-1.2A), do you think it's because of its ampere?!

[h9361]

Is there an easier way to use 8R speaker for VCO?!

[kt315]

you need basic electronics course? nobody here is not academic, we are just beginners.
use a transformer. get a current on the speaker converted from input voltage.
please read the books related electronics more.

[h9361]

Thanks, do you think 32R can work over HH1? I'm trying to find such speaker.

[kt315]

i can find 50R speaker in chinese e-shop. by two clicks.

[surfdetector]

i can find 50R speaker in chinese e-shop. by two clicks.

https://www.aliexpress.com/item/4000...cfc2e0a8b9f6-8

32 ohm

[kt315]

https://www.aliexpress.com/item/4000...ed93646261c4-1
50 Ohm!

[h9361]

Thanks, but buying from china takes a long time to arrive.

[h9361]

After a lot of trying, i found a 32R-0.25W speaker in my country, is it OK?

https://aliexpress.ru/item/4001275755654.html

[kt315]

i do not know your state be cause you do not want to fill a profile.

[h9361]

https://www.aliexpress.com/item/4000...cfc2e0a8b9f6-8

32 ohm

Dear Surfdetector, since you have tested HH1 with 32R speaker, do you think 32R-0.25Watt can work?

[h9361]

i do not know your state be cause you do not want to fill a profile.

OK, i will fill my profile.

[surfdetector]

Dear Surfdetector, since you have tested HH1 with 32R speaker, do you think 32R-0.25Watt can work?

I made the Hammerhead 1 with the VCO option and had no problems with the circuit as designed. I used 32 ohm headphones.

[h9361]

I made the Hammerhead 1 with the VCO option and had no problems with the circuit as designed. I used 32 ohm headphones.

Thank you.
I have a question about R10. Suppose that i have not connected coil to unit, is it possible to burn R10 or IRF740 if i touch pin-coil of unit?

[kt315]

close R10 by wire jumper and try to get working board.