RCA JAN-6SJ7Y / VT-115-B – SINGLE METAL PENTODE TUBE (1 PC)
Made in USA
Rugged All-Metal Envelope
VT-115-B Military Specification
Sharp-Cutoff Audio Pentode 6SJ7Y
New in White Box
Amplitrex AT1000 Tested
Up for sale is a single (1 pc) vintage New Old Stock (NOS) RCA JAN-6SJ7Y / VT-115-B military-specification sharp-cutoff audio pentode vacuum tube, supplied in an individual white box. Built in the USA under strict military standards, this heavy-duty metal-shell valve features integrated electromagnetic shielding, rugged internal construction, and exceptional microphonic suppression. Prized for critical audio preamplification, vintage guitar amps, and communications gear requiring maximum durability and a dead-silent noise floor.
This tube has been fully tested on a precision Amplitrex AT1000 digital tube tester. Measured Plate Current (Ip in mA) and Mutual Conductance (uMhos) alongside percentage performance ratings relative to nominal factory reference specs (Reference: 3.0 mA / 1,800 uMhos) are detailed in the table below.
| Serial No. | Tube Section | Plate Current (Ip) | Mutual Conductance (uMhos) | ||||
|---|---|---|---|---|---|---|---|
| Ref Spec | Result | % Ip | Ref Spec | Result | % uMhos | ||
| SR.NO:5457001 | Single Pentode | 3.0 mA | 4.3 mA | 143% | 1800 | 1770 | 98% |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
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