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STD Marshall 1960 3 jack mono stereo PCB
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I made this for my own use. To replace the dreadful stock Marshall 1960 jackplate PCB with its switch that keeps failing.
This design completely removes the switch by using three stereo (Neutrik) jacks, provinding all possibilities:
4 Ohms mono (4 speakers)
8 Ohms stereo (2 speakers Left + 2 speakers Right)
16 Ohms mono (4 speakers)
The outer jacks are roughly in the same position as the originals, just adding one right in the center of the PCB where the switch used to be.
Four 16 Ohms speakers are required in order to work properly.
PCB_Marshall 1960 3 jack mono stereo PCB
Open in EditorPCB_Marshall 1960 3 jack mono stereo PCB_3
Open in EditorID | Name | Designator | Footprint | Quantity | Supplier | |
---|---|---|---|---|---|---|
1 | 4ΩMono8ΩLeft | 4MONO8LEFT | AUDIO-TH_NMJ6HCD2 | 1 | LCSC | C368502 |
2 | 8ΩRight | 8RIGHT | AUDIO-TH_NMJ6HCD2 | 1 | LCSC | C368502 |
3 | 16ΩMono | 16MONO | AUDIO-TH_NMJ6HCD2 | 1 | LCSC | C368502 |
4 | Left+ | L+ | HDR-M-2.54_1X1 | 1 | LCSC | C81276 |
5 | Left- | L- | HDR-M-2.54_1X1 | 1 | LCSC | C81276 |
6 | Right+ | R+ | HDR-M-2.54_1X1 | 1 | LCSC | C81276 |
7 | Right- | R- | HDR-M-2.54_1X1 | 1 | LCSC | C81276 |
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