Baracuda broken

[BKY1337]

Andi please make a picture with your smartphone or camera and upload it here.
Did you use replacements for the fets?

[kt315]

Ah, oke

please read my opus BEFORE you try to do pics http://www.geotech1.com/forums/showt...here-share-out

[Andi68]

I have taken BF247, + 5V and -5V are present, clean curve on the NE5534, you can also see the change on the scope when metal is near the coil, but I get no sound .....
I'll take some pictures soon, but if I do not find the mistake soon, I give up
Igot really big pissed off

[kt315]

i give a check way diagram 1000th time. you HAVE to hear sound.

[Andi68]

[Andi68]

But I have no idea where the mistake could be

And it's the same mistake as the first board

[kt315]

sorry, i did learn only english in the school ((( in our school teachers splitted a class in two parts - good hight level schoolkid went to teach english, bad schoolkid went to teach german.

[Andi68]

That does not matter, a German has discovered the PI principle.
In Germany, technological discoveries were made, there are other peoples still crawling around in the mud

I have to use the translator

[kt315]

German has discovered the PI principle
---
yup yup my personal role to return german on german land and american on american land. ahaha!

[BKY1337]

Andi , did you try the tip from kt315? 10k Pot.

[BKY1337]

Why does he need to disconnect the VD9 Diode?

[kt315]

he must check only sound part, isolated from left part. listen him - but I get no sound .....

[Andi68]

I tried # 109 - still no sound.

And I will not let go of the feeling, something is wrong with the design

[Andi68]

I changed VD10, now a sound is heard.

Treshholdpot does not respond

[Andi68]

**** this deveice