NOS 6U10 Triple Triode (2 Medium mu / 1 High mu)

Description: One 6U10 per sale Tests NOS boxes were in a case that wasn’t airtight- it did not protect old cardboard/ paper from degradation. None of the original boxes were saveable. Tubes will be blank / partial silk screen and some have perfect silk screen which is unbelievable - after wipe down of cardboard remnants. An excerpt from tube of the month/ vinylsavor: “The 6U10 makes use of the many pins of the compactron base and integrates 3 triodes in one envelope. All cathodes, grids and plates sare brought out to separate pins. All three systems have a common heater. This still leaves one pin unconnected. Two of the triodes, system 1 and system 3 have the same parameters: a medium amplification factor of 17.5 and a plate resistance of 7700 Ohms. System nr. 2 is a high mu triode. It has an amplification factor of 98 and a plate resistance of 61000 Ohms. All details can be found in the datasheet. The two medium mu triodes are comparable to the systems of a 6SN7. The amplification factor is a bit lower and the plate resistance slightly higher. The high mu triode is comparable to half of a 12AX7 (ECC83).” “This makes the 6U10 a very interesting tube for audio purposes. The integration of three separate triodes into such a small bottle could enable very compact amps or preamps. The glass envelope is less than 4cm high. Compared to the common Noval based tubes the diameter is relatively big at about 3cm. Most important for the usability in audio are the parameters of course and especially the linearity of the plate curves. While it is not quite as linear as for example the 6SN7 or 12AX7, the plate curves still look quite good, especially if you pick a good operating point and a linear region”

Price: 8.1 USD

Location: Columbia, Tennessee

End Time: 2024-12-26T17:41:34.000Z

Shipping Cost: 4.63 USD