These boards are a design from Rainfallsky. They have been discussed in this thread : https://www.diyaudio.com/community/threads/semisouth-aleph-j.176857/
Classic Aleph J topology but with only one pair of output. Perfect for 2x IRFP150 or SJEP120R100 / IRFP150 as output transistors.
2oz copper and 1.6mm from JLCPCB. I’m asking 30$ us per sets shipped to you in the USA. I have 4 sets for sale.
Hubert
Classic Aleph J topology but with only one pair of output. Perfect for 2x IRFP150 or SJEP120R100 / IRFP150 as output transistors.
2oz copper and 1.6mm from JLCPCB. I’m asking 30$ us per sets shipped to you in the USA. I have 4 sets for sale.
Hubert
Attachments
I have lost track of the intended use for R24, listed as HBR.
Is this meant as some sort of ground loop breaker?
Is this meant as some sort of ground loop breaker?
R24 is a "Hum Breaking Resistor" for unbalanced input only. Those was suggested in the original store building thread so here is that option. Usually suggested value is 10 Ohm.
I forgot to tell R24 (HBR on the board) should be a jumper for balanced input. It's the only place where Power GND is connected with Input GND.
So it's either a jumper or hum breaking resistor.
So it's either a jumper or hum breaking resistor.