Shearne reference Phase 2 amp - capacitors for power supply.

Organist · 14th August 2007, 03:53 PM

Flushed with the success of replacing capacitors with mainly Pan FC (and Rubycon ML where I couldn't get Panas), I wondered about the power supply caps. The originals are 6 off Jamicon 4700 uF marked '831 KO (M)'. As far as I can make out Jamicons seem to be used in car radios, so the question is - would substituting these for alternatives show a marked benefit? If so, in what areas? There are space constraints, these caps are 30 dia x 30 height. I could go to 40 height maximum to fit in the case.

I'd be really grateful for others' views before I delve deeper, all suggestions welcome!

Thanks

Ron

Organist · 21st August 2007, 11:50 AM

I know there aren't too many of these amps around, but as a general principle would you think I'd get much benefit from changing the smoothing caps?

jaycee · 21st August 2007, 03:44 PM

If the amp is old, then it may be of benefit to change them.

Organist · 21st August 2007, 04:18 PM

It's about 7/8 years old and they were £800 new. It's 50WPC and minimalist in design, had very good reviews in their day, but the firm closed down about 4 years ago.

Ron

14th August 2007, 03:53 PM	#1
Organist diyAudio Member Join Date: Jul 2007	Shearne reference Phase 2 amp - capacitors for power supply. Flushed with the success of replacing capacitors with mainly Pan FC (and Rubycon ML where I couldn't get Panas), I wondered about the power supply caps. The originals are 6 off Jamicon 4700 uF marked '831 KO (M)'. As far as I can make out Jamicons seem to be used in car radios, so the question is - would substituting these for alternatives show a marked benefit? If so, in what areas? There are space constraints, these caps are 30 dia x 30 height. I could go to 40 height maximum to fit in the case. I'd be really grateful for others' views before I delve deeper, all suggestions welcome! Thanks Ron __________________ Ron

21st August 2007, 11:50 AM	#2
Organist diyAudio Member Join Date: Jul 2007	I know there aren't too many of these amps around, but as a general principle would you think I'd get much benefit from changing the smoothing caps? __________________ Ron

21st August 2007, 04:18 PM	#4
Organist diyAudio Member Join Date: Jul 2007	It's about 7/8 years old and they were £800 new. It's 50WPC and minimalist in design, had very good reviews in their day, but the firm closed down about 4 years ago. Ron __________________ Ron

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21st August 2007, 03:44 PM	#3
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	If the amp is old, then it may be of benefit to change them.

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