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Topics - maiko

#1
Tubes and Hybrids / My Hyrid Tube / TDA2050 amp
January 27, 2017, 08:40:43 PM
Just Sharing

this is a 12au7 preamped GGG tda2050 amplifier.   i included a reverb circuit in there



I built in in sections/modules



Gut Shots



Its louder than the other amps ive built.  Initally it had a turn on thump/pop.  I did not that pop.  mostly it was considered normal everywhere i tried to research but i found a way to completely eliminate the pop/thump.  I use a DPDT relay controlled by a 555 it delays the continuity to speaker approx 3-4 secs. and during that time diverts continuity to a dummy resistor load.    Now its completely flawless on startup.