04-25-2008, 09:38 AM
After four hours of recapping 13 blocks and re-resistoring my "new" 16B, I gave it power- and it worked, almost; Philco had added a resistor that wasn't on the schematic into one of those blocks and they didn't they give the block a new part number. Putting in a resistor and spending a minute to tweak the IF and the 16B was blasting the BC and SW.
What surprised me was that it worked even though I had forgotten to recap the huge capacitor "brick" that holds the .5 to 2mFd caps. I will let it burn in for a few days and if any of those caps fail, I'll just mount new caps outside of the can.
The only nuisance was the tone switch- early updates were made and described in the notes, but there's no schematic. Just to get it going I simply used three different value caps and a series 30K resistor.
On to the cabinet. All of the 16B's I've seen had a near-black cabinet; this one is a dark wood tone (fair condition, not really presentable). This is one of the Code 121's- does anyone know if this lighter color is merely aging or were these early ones actually dark wood tone?
What surprised me was that it worked even though I had forgotten to recap the huge capacitor "brick" that holds the .5 to 2mFd caps. I will let it burn in for a few days and if any of those caps fail, I'll just mount new caps outside of the can.
The only nuisance was the tone switch- early updates were made and described in the notes, but there's no schematic. Just to get it going I simply used three different value caps and a series 30K resistor.
On to the cabinet. All of the 16B's I've seen had a near-black cabinet; this one is a dark wood tone (fair condition, not really presentable). This is one of the Code 121's- does anyone know if this lighter color is merely aging or were these early ones actually dark wood tone?
Pete AI2V
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