jammys Posted January 29, 2016 Share Posted January 29, 2016 Hi I've hunted around for a relevant thread. I'm sure there is one but for the life of me I couldn't find it...... Basically, my beautiful little thing has started to emit a noise akin to an untuned radio. It gets worse when the gain or master are turned up. The tone of the noise is also changed by the bass, mid and treble controls. Any help from you clever guys and gals would be welcomed. Quote Link to comment Share on other sites More sharing options...
AndyTravis Posted January 29, 2016 Share Posted January 29, 2016 Does it 'fart' when you play through it? Sounds like a valve issue. Might need a service. In a dark room, turn it on, is one of the valves duller in appearance than the others? Not particularly scientific - just helps identify the cause. How old is the amp? Quote Link to comment Share on other sites More sharing options...
jammys Posted January 29, 2016 Author Share Posted January 29, 2016 Hi. Its still sounds good when its being used. The valves all appear to be the same colour. Its a couple of years old. Are valves easily swapped by a reasonably competent diy'er? Quote Link to comment Share on other sites More sharing options...
AndyTravis Posted January 29, 2016 Share Posted January 29, 2016 [quote name='jammys' timestamp='1454107942' post='2966650'] Hi. Its still sounds good when its being used. The valves all appear to be the same colour. Its a couple of years old. Are valves easily swapped by a reasonably competent diy'er? [/quote] Preamp valves are switchable, if it's the power stage ones i'd recommend a tech gives the amp a service. I keep on meaning to pick one of these amps up, love them. Quote Link to comment Share on other sites More sharing options...
jammys Posted January 29, 2016 Author Share Posted January 29, 2016 Andy Cheers for the advice, I think I'll pop it off to the local tech tomorrow. Quote Link to comment Share on other sites More sharing options...
AndyTravis Posted January 29, 2016 Share Posted January 29, 2016 [quote name='jammys' timestamp='1454108444' post='2966659'] Andy Cheers for the advice, I think I'll pop it off to the local tech tomorrow. [/quote] Basses I can fix, amps I always look at and go "errrrrrrrrrr...." I stop at replacing switches and internal fuses. I'm off to find a CTM-15 😂 Quote Link to comment Share on other sites More sharing options...
jammys Posted January 29, 2016 Author Share Posted January 29, 2016 [quote name='AndyTravis' timestamp='1454108565' post='2966660'] Basses I can fix, amps I always look at and go "errrrrrrrrrr...." I stop at replacing switches and internal fuses. I'm off to find a CTM-15 [/quote] Good luck with that I waited for ages to find one in good nick. Quote Link to comment Share on other sites More sharing options...
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