The YJUni is a simple pin-converting adapter for use in most amps with 6V6 or similar based tubes like 6F6, 6G6, 6K6, 6Y6, etc. The YJUni is shorter than standard Yellow Jackets®. It is designed for use in lower power output amps (20 watts or less) when no power reduction is desired. If your amp is cathode-biased, then no bias adjustment is needed. If your amp is fixed biased, then the bias should be adjusted just as it would be according to the standard biasing instructions included with the amp. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes. Converts pin configuration from 9-pin to 8-pin to allow certain 6V6, 6K6
C**4
Don’t buy, doesn’t work as expected.
I have two THD amps, one Univalve and one BI-Valve 30. The yellowjacket Uni is specially designed for these amps. After installation, the amp delivers a very high level of background noise on both amplifiers. I have tested the J/J EL84 tubes that were in the package, and they are perfect and delivers as expected, perfectly. Conclusion: the yellowjackets is the problem. Cannot be used in my amplifiers, for some reason. I live in Europe, and have difficulties returning the merchandise. Waste, don’t buy!
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2 months ago
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