ThreeChordWonder
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Everyone starts somewhere, and it's better to ask than fork up. I get confused because you sparkies got the electricity flow direction wrong, and have been confusing everyone since, and I was confused because the positive feeds seem to come off the diodes' cathodes.If you need to ask that here, you are either very insecure, or maybe you shouldn't be building your own amplifier. But the layout is correct, that's a bridge rectifier in case your PT secondary doesn't have a center tap. If it does have a center tap, you shouldn't be using a bridge rectifier like this.
Also, make sure to ground it on the - (black pole) of the reservoir capacitor.
The schematic that you posted uses a PT without center tap.PS yes the PT has a center tap, but in the wiring I'm following (Mojotone Marshall Superlead 100) the center tap doesn't go to the rectifier, via the standby switch or not. Instead it goes to two of the 50/50 uF filter caps.
I get confused because you sparkies got the electricity flow direction wrong, and have been confusing everyone since, and I was confused because the positive feeds seem to come off the diodes' cathodes.
For me personally, as a chemical engineer, electrons are negatively charged and there's no such things as a positive current flow
Mechanical engineer here - liquids in pipe flow from high pressure and / or elevation to lower, which is probably where the [wrong] assumption came from.
This kind circuit keep series capacitors voltages"balanced" without two parallel/series resistors which do not function very well!PS yes the PT has a center tap, but in the wiring I'm following (Mojotone Marshall Superlead 100) the center tap doesn't go to the rectifier, via the standby switch or not. Instead it goes to two of the 50/50 uF filter caps.
Electron flow is not needed in electronics which use current and which flow from positive to negative!
The JMP / JCM 100 watters eg 1959 SL use a FWB rectifier, the HT winding CT is used to provide a 1/2 voltage reference for the reservoir caps https://www.mojotone.com/Amp_Kits/British/British_100W_Bass_SCH.pdfThe schematic that you posted uses a PT without center tap.
If you have a PT with center tap, you need to put two diodes in series on each side of the secondary, and ground the center tap of the PT at the reservoir cap (even better: put a fuse in between).
Double check what you have
Good point, I missed that oneThe JMP / JCM 100 watters eg 1959 SL use a FWB rectifier, the HT winding CT is used to provide a 1/2 voltage reference for the reservoir caps https://www.mojotone.com/Amp_Kits/British/British_100W_Bass_SCH.pdf
The CT doesn't carry load current, so it seems best to describe rectification as FWB, rather than a pair of 2 phase rectifiers.