derums Posted March 13, 2014 Share Posted March 13, 2014 I was surfing the web and found about these: http://www.jetcityamplification.com/#!retrovalves/ctjr they're 12ax 7 tube replacements. Anyone have any comments on these? Might offer new tonal possibilities. TTK says that using the red series is like throwing a tube screamer in front of your amp... http://thetoneking.com/wp/retrovalves-by-jet-city-full-demo-review-blue-amber-red-retro-valves/ love to know if anyone has experience Quote Link to comment Share on other sites More sharing options...
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