This listing is for a Pair (2) of Type 42 Pentode Power Amplifier Antique vacuum tubes in the ST (Coke Bottle) tube shape. They have a engraved black 6-pin UY base, black plate, and foil D getter.
Your tubes have been fully tested on a computer-regulated Amplitrex AT1000 on Fixed Bias setting with used good results. It has also passed shorts and gas tests. The tubes might have mechanical wear or have the label rubbed off - these are very old! Tubes that test like new (tNOS) are available in a separate listing. Every tube you receive from Sound By Doc is guaranteed against failure for 60 days after purchase, an industry extreme!
OPTIONS:
Want a regular white box? $1 extra
Want the test results recorded on your box, too? $3 extra
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| Listed | 2 years ago |
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| Condition | Good (Used) Good condition items function properly but may exhibit some wear and tear.Learn more |
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