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See, I told ya Tung would have the straight poop! :
I can definitely vouch for the impact of a good quality/well-matched OT on the amp's tone. When I swapped out the stock OT from my Epi Valve Jr. with a Hammond 125ESE, it made a very noticeable tonal improvement, particularly in the bottom-end output. There's more bass now and it's punchier and better defined. Of all the many mods I did to my Valve Jr., this one had the single biggest benefit for the amp's tone. The Hammond OT was not only much better quality and rated for higher max. wattage (15W), but was also a better match to the VJr's EL84 output tube--another important factor, as Tung points out. When I upgraded a second VJr--the one Strummy bought from me--I used the 10W 125DSE model instead (still 2x the VJr's 5W rating), and it sounded just as good. Check out the difference in size and construction between the 125DSE and the stock OT:
Last edited by duhvoodooman; May 4th, 2009 at 09:50 AM.
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