Vacuum Tube - 5879, Pentode, Sharp Cut-Off

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Vacuum Tube - 5879, Pentode, Sharp Cut-Off

In stock

New-Old-Stock (NOS) tube.

The 5879 is a sharp-cutoff pentode of the 9-pin miniature type intended for use as an audio amplifier in applications requiring reduced microphonics, leakage noise, and hum. It is especially useful in the input stages of medium-gain public address systems, home sound recorders, and general-purpose audio systems.

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Packaging Information
Packaging Dimensions1 in. × 1 in. × 3 in.
Weight (Packaging)0.03 lbs.

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Questions and Answers

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Asked by Anonymous on May 16th, 2020.
May 19th, 2020
Staff Member
Any inquiries about stock availability of NOS tubes will need to be called in as stock changed regularly.

Product Reviews

4.00 out of 5 based on 1 reviews
- January 2nd, 2019
4 out of 5

Two different branded NOS tubes were received in my package, one labelled Tung-Sol and the other Philips ECG USA. The Tung-Sol looks identical to an original RCA 5879 down to the "5879" stencilling so is no doubt a re-branded tube but the Philips is clearly different with significantly higher output. Used in the preamp sockets of a 1950's Gibson amp this is not necessarily a bad thing as different signal strengths and tones can be obtained on each of the amp's two channels.