03-08-2016, 12:27 PM
Or a FET in common source should work. Or a FET input opamp if you have one to hand. I'd likely use a TL061 opamp or a BF244 FET as both are in my spares box.
Power would be a rectifier from the heater supply, smoothing cap, resistor and zener. 9V to 15V seems about right but hardly critical.
With the elf'n'safety hat on, the new class Y safety caps go between the cartridge and preamp. I know this is obvious to DIck, Terry, Mark and others but no harm in making the point.
Power would be a rectifier from the heater supply, smoothing cap, resistor and zener. 9V to 15V seems about right but hardly critical.
With the elf'n'safety hat on, the new class Y safety caps go between the cartridge and preamp. I know this is obvious to DIck, Terry, Mark and others but no harm in making the point.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
