Delmonico is the importer and cabinet manufacture. That schematic is clearly wrong, very clearly, as has a EL84, as I said, the only audio valves are a pair of ECL86s. Believe me, I have spent countless amount of time looking for it. I be more then thrilled if someone found it, be a huge help (one, the 180KΩ resistor is reading 2Ω with either meter).
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And if I was repairing a vintage Hammond organ or console I'd use the same resistor types as originally used if possible. But I would never design a new circuit to use them. Then again, I design precision circuits and not effects boxes. Each to their own.
Tom
Tom, good to know. By the way, after this thread was hijacked, figured the Körting should have a build thread, so last few hours been working on it, trying to make it brief and understandable.
Can you look a PCB board's traces or even just the components and see the schematic, without tracing?
No. I usually can't unless I have some knowledge of the circuit going in. Similarly, I wouldn't expect a chemist to be able to accurately describe the chemical composition of Soup of the Day just by looking at it. The main ingredient is sodium...
I'm curious what brings up the question.
Tom
Now I am tracking, next page is a PDF link which is dead. Okay, that seems to be the amplifier, but not the receiver. We are looking for the schema for board 3-2003, which a cursory search brings no results.
Gorgon, thank you for the assistance. Trouble is, that only has part of the receiver section and then the incorrect valves, only similar is the ECC85 and ECH81 , Körting here has a EBF89 rather than EF89.
I do have a schematic which seems has these valves, though the circuit board number is different, have yet to compare to components.
I do have a schematic which seems has these valves, though the circuit board number is different, have yet to compare to components.