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Special Purpose

Special Purpose

Explore our wide array of special purpose products designed for unique applications. These items cater to specific needs and enhance functionality in various environments.

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6350 RCA Medium Mu Twin Triode (NOS/NIB)
6350 RCA Medium Mu Twin Triode (NOS/NIB)
Made in the USA

In Stock

$24.91

Designed for use in high-end digital computers. Each section features a high zero bias plate current, sharp cutoff and a seperate cathode connection.



  • Base: 9-Pin

  • Cathode: Coated Unipotential

  • Mounting: Upright or with Plate Majors in Vertical Position


New Old Stock * No longer available for export
MFR: RCA
SKU: 6350-RCA

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5670WA Raytheon Special Purpose High Frequency Twin Triode Tube (NOS)
5670WA Raytheon Special Purpose High Frequency Twin Triode Tube (NOS)

In Stock

$19.91

For use in audio amplifiers.
New old stock * No longer available for export
MFR: Raytheon
SKU: 5670WA-RAY


NOTE: Picture for reference only. Box appearance and tube appearance may change.


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5751 JAN Sylvania Electron Tube  (NOS)
5751 JAN Sylvania Electron Tube (NOS)
Made in the USA

In Stock

$86.91

5751 JAN Sylvania Electron Tube  (NOS)


This tube is interchangeable with a 12AX7. 
New Old Stock * No longer available for export
MFR: Sylvania
SKU: 5751-JAN-SYL


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12AT7A Sylvania JHS High Frequency Twin Triode Gold Label (NOS)
12AT7A Sylvania JHS High Frequency Twin Triode Gold Label (NOS)
Made in the USA

In Stock

$39.90

New old stock * No longer available for export.
MFR: Sylvania
SKU: 12AT7WA-JHS-GOLD-SYL

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5814A JAN Sylvania Medium-Mu Double Triode Tube (NOS/NIB)
5814A JAN Sylvania Medium-Mu Double Triode Tube (NOS/NIB)
Made in the USA

In Stock

$29.90

New old stock * No longer available for export
MFR: Sylvania
SKU: 5814A-JAN-SYL

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6BA5 Sylvania Pentode Voltage Amplifier (NOS)
6BA5 Sylvania Pentode Voltage Amplifier (NOS)
Made in the USA

In Stock

$9.90


  • Bulb: T-3

  • Base: Flexible Leads

  • Cathode: Coated Unipotential

  • Heater Voltage: 6.3 Volts


New Old Stock  * No longer available for export
MFR: Sylvania
SKU: 6BA5-SYL

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Items 41 to 46 of 46 total