Vacuum Tube - 5751, Triode, Dual, HI-MU
New-Old-Stock (NOS) tube.
The 5751 is a miniature high-mu twin triode each section of which as an individual cathode connection. The tube is especially suited for use in resistance-coupled voltage amplifiers, phase inverters, multivibrators, and numerous industrial-control circuits where high voltage gain is desired. The 5751 is a special-quality tube intended for use in critical industrial and military applications in which operational dependability is of primary importance. Features of the tube include a high degree of mechanical strength and a heater-cathode construction capable of withstanding many thousand cycles of intermittent operation. When used in on-off control applications, the tube will maintain its emission capabilities after long periods of operation under cutoff conditions.
Note: brands may vary. Photo is for reference only and may not exactly represent final product received.
Packaging Dimensions | 1 in. × 1 in. × 2.8 in. | ||
Weight (Packaging) | 0.0331 lbs. |
NOS Tube Specification Sheet | All Models |
Product Reviews
Updated review:
I've now purchased 3x of these random 5751s. I have had the chance to run all 3 for several days each. All have worked the first try (no hours of pin cleaning required), low noise, non-microphonic, and have had excellent sound quality in my SET integrated amplifier. Customer support continues to be excellent.
I received a better than expected product and excellent customer service (multiple calls/agents). With all the insane pricing out there for NOS tubes ... Antique Electronic Supply / tubesandmore.com are really doing the antique audio community a service by offering such a fine product for a reasonable price!