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« on: 12 Nov 2015, 10:43 pm »
 :D HI EVERYBODY ,,  i'm selling my old RM-9 MK1 amp and a guy tells me
      it will need caps replaced soon ,, is this a general rule for an older tube amp ??
          caps are cheap ,, right ??  :)    it has a full compliment of NEW tubes right fron Rogers shop.
               is 1500.00 an ok price ????  i really don't need this amp. right sizing and moving..
       regards ,,    Pascal


Re: NEW CAPS ????
« Reply #1 on: 13 Nov 2015, 07:21 pm »
 :D  i should call Roger i guess.  :D   wish i knew more about amp building maintenance and longevity  .... :D


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Re: NEW CAPS ????
« Reply #2 on: 4 Dec 2015, 02:07 am »
It's generally a good idea to replace at least the electrolytic capacitors in the power supply. Those can fail due to age and take out other components with them.


Re: NEW CAPS ????
« Reply #3 on: 4 Dec 2015, 03:24 pm »
Quality caps should last at least 20 years, but they can sometimes last much longer. Junk caps can last as short as 5 years. Of course Music Reference uses high quality caps. Good caps with high voltage rating for tube amps can be kind of expensive, and they do make a difference in SQ, so definitely refer to Roger's advice on when they should be replaced and with what parts.