HI,FIRST POST.
JUST AQUIRED AN OLD POLYTONE MINI BRUTE 3.
THE AMP IS EXTREMELY DISTORTED WITH NOT MUCH VOLUME.
CHECKED THE 4 OHM SPEAKER WITH ANOTHER AMP AND IS GOOD.
WIRED AN 8 OHM SPEAKER TO THE AMP(ALL I HAD)AND THE DISTORTION IS GONE,BUT STILL NOT MUCH VOLUME.
I AM GUESSING!!!THAT ONE OF THE OUTPUT TRANSISTORS(ON ONE OF THE HEATSINKS)
AT THE BOTTOM OF THE AMP HAS GONE,AND THAT I AM GETTING ONLY HALF OF THE WAVE,HALF OF THE POWER.
AM I IN THE BALLPARK OR DILERIOUS ?
I'VE ONLY RECENTLY GOT INTO AMPS,VALVES,AND ARE STILL NOT SURE WHAT I'M DOING.
IF RIGHT!!.COULD SOMEONE TELL ME HOW TO TEST THE TRANSISTOR AND WHERE TO GO FROM HERE.MANY THANKS.