lear: Schematic for Lear model 561
ID: 694518
This article refers to the model: 561 (Lear Inc.; Grand Rapids and Los Angeles)
? lear: Schematic for Lear model 561
08.Jun.25 16:12
139
Steve Gregory (USA)
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Count of Thanks: 8
There are schematics for this model but I haven't been able to find one for my particular complement of tubes which is: 35w4 12sa7 12sf7 12sq7 50b5. Any help is appreciated.
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lear: Schematic for Lear model 561
09.Jun.25 14:05
139 from 433
It might be just the sockets changed. The 50B5 is later B7G replacement of the octal 50L6. It's not identical though anode currents are similar (49 mA vs 44 mA). Cathode resistance may be lower at about 150 Ohms rather than 180 Ohms (but maybe not), but likely there are only a few values of resistors changed and nothing else.
The 35Z5 and 35W4 are both half waye rectifiers.
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