(Four steps to excellence). 1. Noise reduction (background with a frequency of 50 Hz). In parallel, each diode in the rectifier of the AC power supply (PS) located in the body of one of the speakers, connect a non-polar capacitor type КМ6 (or similar) with a capacity of 0.01 microfarads. In addition, the parallel output SP to filter the background set compact electrolytic capacitor HITANO company with a capacity of 3300 UF at a working voltage of 25 V is ineffective capacitor 1000 UF. These simple improvements reduce background noise with a frequency of 50 Hz present in the cheap versions of the speakers made in China.TAP CORKSCREW
To remove from blind hole a pin in it, pre-cut the threads, and then using a long bolt with a grommet pull out. This operation can be accelerated by assigning the role of “spin” to the tap. Pushing through the steel ball of the appropriate diameter in the bottom of the hole, further rotation it Read more…










