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Restoration case - MAGNAVOX  151B MODEL 

YEAR 1959 .

No sound.

FOUND  -   BAD TUBES  6V6GT (TWO OF THEM), BAD CAPACITOR C12  IN POWER SUPPLY, POWER CORD REPLACEMENT, FRONT PANEL LAMPS REPLACEMENT. UNIT HAS SCEMATIC INSIDE ON INTERNAL WALL.

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 IT IS A PLEASURE TO WORK ON   UNIT LIKE THIS . Ownestly  -  my technical respect to all those ingineers who  worked on this unit, it is just perfect . no overheathing, simple , all parts good distance from each  other, perfect parts inside, perfect sound, no limited life parts inside, 50 years old unit works work better any modern audio amplifier, simple,  after checking major parts  - they like new -{ transistors , capacitors, lamps, buffer resistors, ic in tuner section. I  even change my test equipment - but  still  perfect.  It  is hard to believe . On 20 - 180 Hz this guy  not changing  output  power  -   UNBELIABLE. Not like Sansui or Onkyo.

Technical respect for this unit  . So far one of the best vintage audio amps oin the world.

Parameters  - all in range   and it will  keep it  for 40 years and more . i believe.

output transistor works on 67% of power in tthis unit.

1970- 1990   Pioneer  audio equipment engeneers - respect  for you.

 

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