Case  #  567322   .06.01.2026 . Tube radio AM Studebaker  Lark  1960   . Model AS-2977.     No sound.

Solid state ans vacuum tube electronics in one case.   Speakers on this model you can use any modern  4 Ohm , 8 Ohm or 16 Ohm. Power  12VDC. Audio out power up to 10 W. Antenna must be connected  or imitated by simple piece of wire.  Multi section electrolytic aluminum capacitor need to be replaced in any case.   All tubes  tested   and found OK.  Output transistor DS-503 is  defective and need replacement . Indication of bad output transistor  – burned resistor 44   on circuit board  0.33 ohm  ( emitter line )  .   After experimenting a little bit  we use  modern 2SA1265N  as a replacement.  No changes or adjustment needed.  Transistor body type is different but it is no big deal  for handy person.