RCA etc. Quad (4) Type 39/44 Antique AT1000 TESTED Vacuum Tubes Pentode 1935-1949
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This listing is for a quad (4) of Type 39/44 Pentode Antique vacuum tubes in the ST (Coke bottle) tube shape. They have a Black 5-pin base, nickel mesh plate, and bottom foil getter. Labels in stock include RCA, Tung-Sol, Philco. Some of our stock is re-labeled or marked with the OEM of Motorola. If you're looking for a particular brand, please message right as you order - we pack and ship quickly!
Your tubes have been fully tested on a computer-regulated, USA-made Amplitrex AT1000 on Fixed Bias setting with used good results. They have 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 tNOS or Used Good tube you receive from Sound By Doc is guaranteed against failure for 60 days after purchase, an industry extreme!
OPTIONS (use offer feature in Reverb):
Want a regular white box? $1 extra per tube
| Listed | 3 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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Product safety information may be available here.
