i built this simple phone amp http://public.fotki.com/shemtov/studio/pampsch.html
it's suppose to be mobile and boost md output to 600 ohms phones.
after 30 seconds i get unsimetric distortion on the scope (draw it in the link), when i lower the input voltage it's happened again after 3-5 seconds no matter how low the input voltage is.
what could be the cause of that? :?:
it's suppose to be mobile and boost md output to 600 ohms phones.
after 30 seconds i get unsimetric distortion on the scope (draw it in the link), when i lower the input voltage it's happened again after 3-5 seconds no matter how low the input voltage is.
what could be the cause of that? :?: