Olomana 6 Posted February 2, 2018 my jolida amp seems to acting up with humming in the right channel. I am trying to find schematics and if folks know of people who repair/upgrade tube amps. mucho mahalo, Olomana Quote Share this post Link to post Share on other sites
tube fanatic 1158 Posted February 2, 2018 Where are you located? There are qualified techs all around the USA who could handle the repairs. Maynard Quote Share this post Link to post Share on other sites
tube fanatic 1158 Posted February 2, 2018 I've heard good things about this fellow in regard to repairs and upgrades: http://audiocraftsman.com/ Maynard Quote Share this post Link to post Share on other sites
Frank1938 42 Posted February 3, 2018 19 hours ago, Olomana said: my jolida amp seems to acting up with humming in the right channel. I am trying to find schematics and if folks know of people who repair/upgrade tube amps. mucho mahalo, Olomana Have you tried switching cables first and then tubes? Could be one of the two. Quote Share this post Link to post Share on other sites
Olomana 6 Posted February 3, 2018 Good idea. Will try that before installing the new Crites type A crossover Quote Share this post Link to post Share on other sites
Olomana 6 Posted March 6, 2018 been super busy and kicked out of the listening room for a while. hiss was definitely just on one side when I switched the speaker cables. Then I tried moving the tubes Left to the right and the hiss followed. Now I gotta figure out which tube or tubes is the culprit. Given my upcoming month's schedule, should get this sorted by Christmas.... 1 Quote Share this post Link to post Share on other sites
Frank1938 42 Posted March 16, 2018 On 3/6/2018 at 3:12 PM, Olomana said: been super busy and kicked out of the listening room for a while. hiss was definitely just on one side when I switched the speaker cables. Then I tried moving the tubes Left to the right and the hiss followed. Now I gotta figure out which tube or tubes is the culprit. Given my upcoming month's schedule, should get this sorted by Christmas.... Good to hear that it was something simple. Try to get it sorted before summer when you'll get busier. 1 Quote Share this post Link to post Share on other sites