Hi Lee
Certainly would help mate
S.
Hi Lee
Certainly would help mate
S.
Turntable; Rega p8
Cartridge; Alpheta mc
Phono Stage; Rega Aria, Bigbottle 3 mm/mc
Amplifier; Rega Elicit
Speakers; Rega Rx3
Location: Newcastle-upon-Tyne
Posts: 76
I'm Keith.
Well, removed the 10R resistors and fitted 1.2R and there is a definite improvement in how this now sounds. Improvement in clarity and therefore detail but also increased smoothness and calmness. Sounds quieter which is a good sign as I think it is distortion that can make things sound loud.
I get 1.092V across one resistor and 1.076V across the other so with 1.2R I reckon that is 910mA and 896mA respectively? can someone (Alan ? ) advise if this is close enough or would further matching improve things? What value resistor is required to parallel with the 1.092 side to get it down to 1.076?
The bottom of the case is hot to touch but can keep my hand on it no problem, same with finger ends on the Fets themselves so the heat seems to be transferring away ok. The MURs, however are very hot and can't quite keep a finger end on them so will need to look at getting some heatsinking onto them. What solutions have you tried for the MURs?
KR
Keith.
Garrard 401, Groovemaster 2, Arche headshell, Miyajima Shilabe, Paradise Phono amp,
Aqua La Voce dac
Salas DCB1
Najda active crossover and DSP.
Crown XLi 1500 x 2 bridged, Neurochrome Mod 86 monos, Guy Sergeant Hiraga Le Monstre,
DIY open baffle with 18" Fane Colossus XB, Beyma 12p80ND and Beyma TPL150H with BK XLS 400 sub.
Turntable; Rega p8
Cartridge; Alpheta mc
Phono Stage; Rega Aria, Bigbottle 3 mm/mc
Amplifier; Rega Elicit
Speakers; Rega Rx3
The heat from the fets is sufficiently far enough away from the diodes not to cause any problem.
Look at how close your fets are in pairs, the diodes are further away.
Turntable; Rega p8
Cartridge; Alpheta mc
Phono Stage; Rega Aria, Bigbottle 3 mm/mc
Amplifier; Rega Elicit
Speakers; Rega Rx3
Last edited by STD305M; 16-12-2018 at 20:29.
Turntable; Rega p8
Cartridge; Alpheta mc
Phono Stage; Rega Aria, Bigbottle 3 mm/mc
Amplifier; Rega Elicit
Speakers; Rega Rx3
The current levels are very close and don't need adjustment.
Fit a few square inches of aluminium plate to the MUR rectifiers and it will bring the temperature down, like I did to Oli's.