Vacuum Tube - 5751, Triode, Dual, HI-MU

Vacuum Tube - 5751, Triode, Dual, HI-MU

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In Stock
Quantity in stock: 19

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.

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Product Measurements by Type
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Packaging Information
Packaging Dimensions1 in. × 1 in. × 2.8 in.
Weight (Packaging)0.031 lbs.

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Product Reviews

5.00 out of 5 based on 2 reviews
- January 24th, 2017
5 out of 5

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.

- January 18th, 2017
5 out of 5

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 / are really doing the antique audio community a service by offering such a fine product for a reasonable price!