11-28-2020, 12:13 PM
Bob
The numbering is not that important. What is, is that you look at the connections and see that they go to a part described. Of course correct numbering makes it a bit easier, especially if there is a drawing of the chassis and the parts list.
But you do know that a cap of a certain parameters goes between the rect. negative (xfmr centertap) and it is usually a black wires, and the positive (the rect tube's cathode or filament, depending on the tube) which would be the red wire, and you check against that. Then you go about other capacitors. And other parts if you question the connections. Typically the factory connections or 1940-s - 1950-s repairs do not have to be questioned, so you simply re-use the connections.
When you see a today's repair with not so neatly soldered connections, you question it. But then there are sometimes mistakes in the schematics so ask questions or else it just might not work (many Philcos schematics, for instance, miss a tie-dot between the second filter cap and the B+ voltage; a known problem, but for a newby it is not something that he knows so if trying to follow that you will render the radio inoperative).
And so on.
The numbering is not that important. What is, is that you look at the connections and see that they go to a part described. Of course correct numbering makes it a bit easier, especially if there is a drawing of the chassis and the parts list.
But you do know that a cap of a certain parameters goes between the rect. negative (xfmr centertap) and it is usually a black wires, and the positive (the rect tube's cathode or filament, depending on the tube) which would be the red wire, and you check against that. Then you go about other capacitors. And other parts if you question the connections. Typically the factory connections or 1940-s - 1950-s repairs do not have to be questioned, so you simply re-use the connections.
When you see a today's repair with not so neatly soldered connections, you question it. But then there are sometimes mistakes in the schematics so ask questions or else it just might not work (many Philcos schematics, for instance, miss a tie-dot between the second filter cap and the B+ voltage; a known problem, but for a newby it is not something that he knows so if trying to follow that you will render the radio inoperative).
And so on.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
