My DIY DAC

Hi

May any brothers advise me where can buy the sticker like type which could place on the top of the cap to prevent interfernce?


Regards

Hi

Tks for KK Sir quick reply,

May I know where can buy the captioned copper masking tape.

Also I could periodicaly hear a very small high frequency hum sound for 15 sec of around 20 sec interval, may i know the suspected  cause?

Regards