Polish Pi

[beiduo]

The voltage control of KTS is extracted, and you can achieve very good results by changing the C35 capacitor. The input terminal uses 10UF electrolytic capacitors to filter.

[bernte_one]

can you upload full sheme for construction of l741 / kts vco mod sheme? THX

[beiduo]

https://drive.google.com/file/d/1VdW...ew?usp=sharing

[bernte_one]

ok thanks, audio vco can be used as in the lower right corner from the diagramm (C35 is normaly 1,5nf there)

i will try to use 10uF as filter in polish pi audio mod

[beiduo]

建议尝试

[kt315]

建议尝试

mandarine in lithuanian shop https://youtu.be/YI1RdIGbxWo

[Qiaozhi]

建议尝试

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

[bernte_one]

i can read it, it means so much like: try it

[aulook]

Hi everyone. I need help. My polones at first was good. However, it suddenly it created a continued sound. Adjusting all the controls will not stop it's continued sound. I change the integrator ic and all other ic will not stop either. I check all the voltages, everything is normal. I what is going on. Pls help me.

[Bayu]

try changing fet bf254

[kt315]

use transistor tester (buy on aliexpress) to check transistors and define right pin placement.

[ZOUjiarui]

https://drive.google.com/folderview?...9hJM8rQmCSEJ1i
4066 replaces bf245 and is said to be more stable

[ZOUjiarui]

[ZOUjiarui]

Can anyone tell me what's wrong with this circuit diagram?Or no problem, just this C39 error.

[ZOUjiarui]

Trash 6103,Rubbish 6103, which dog made the fake drawings?