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Receiving Tubes

Receiving Tubes

Receiving tubes, also known as signal tubes, are essential components used in various electronic applications. They play a crucial role in amplifying and processing audio signals.

Explore our extensive selection of receiving tubes for all your audio and electronic needs.

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1L6 Pentagrid Converter (NOS)
1L6 Pentagrid Converter (NOS)
Made in the USA

In Stock

$79.91

Designed for use in low drain battery operated receivers. Similar to 1A7GT and 1LA6.



  • Filament Voltage D.C.: 1.4 Volts

  • Filament Current: 50mA


New Old Stock * No longer available for export
MFR: RCA, Zenith
SKU: 1L6-NOS


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2D21 Thytron Vacuum Tube (NOS/NIB)
2D21 Thytron Vacuum Tube (NOS/NIB)

In Stock

$6.91

Designed to be used in relay and grid-controlled rectifier applications.
New old stock * New In Box * No longer available for export.
MFR: RCA, Westinghouse, Sylvania, GE, Tung Sol, National
SKU: 2D21

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3Q5GT Beam Power Amplifier Tube (NOS)
3Q5GT Beam Power Amplifier Tube (NOS)
Made in the USA

In Stock

$5.91

Designed for the output stage of a 3 way receiver.
New old stock * No longer available for export.
MFR: RCA, Raytheon
SKU: 3Q5GT

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5T4 RCA Full Wave High Vacuum Rectifier Tube (NOS/NIB)
5T4 RCA Full Wave High Vacuum Rectifier Tube (NOS/NIB)
Made in the USA

In Stock

$24.91

Designed for service as a power rectifier in AC operated receivers.
New old stock * New In Box * No longer available for export.
MFR: RCA
SKU: 5T4

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1U4 Sharp Cutoff Pentode (NOS/NIB)
1U4 Sharp Cutoff Pentode (NOS/NIB)
Made in the USA

In Stock

$6.91

Designed to operate in radio frequency or intermediate frequency amplifiers in battery operated receivers.
New old stock * No longer available for export.
MFR:Standard Brand, Philco, RCA, Radio Television.
SKU: 1U4

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0D3/VR150 RCA Voltage Regulator Diode Tube (NOS)
0D3/VR150 RCA Voltage Regulator Diode Tube (NOS)
Made in the USA

In Stock

$9.90

Designed to provide a regulated output of approximately 150 volts


New old stock * No longer available for export.
MFR: RCA
SKU: 0D3

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3A3C RCA Half Wave High Voltage Rectifier (NOS)
3A3C RCA Half Wave High Voltage Rectifier (NOS)
Made in the USA

In Stock

$5.91

The 3A3C is a heater-cathode type diode designed for use in color television recievers as the high voltage rectifier to supply power to the anode of the picture tube. It is primarily intended for use in flyback types of power supplies.


New old stock * No longer available for export.
MRF: RCA
SKU: 3A3C

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3B2 Half Wave High Voltage Rectifier Tube (NOS/NIB)
3B2 Half Wave High Voltage Rectifier Tube (NOS/NIB)
Made in the USA

In Stock

$5.91

Designed to operate as a rectifier in the scanning systems of TV receivers.
New old stock * New In Box * No longer available for export.
MFR: RCA, GE, Raytheon
SKU: 3B2

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5KE8 RCA Triode-Pentode Tube (NOS/NIB)
5KE8 RCA Triode-Pentode Tube (NOS/NIB)

In Stock

$3.91

For combined oscillator-mixer applications in TV receivers having IF at 40Mc.
MFR: RCA
SKU: 5KE8
New old stock * No longer available for export.

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5814A RCA Command Medium-Mu Double Triode Black Plates (NOS)
5814A RCA Command Medium-Mu Double Triode Black Plates (NOS)
Made in the USA

Out of stock

$39.91

New old stock / New in box * No longer available for export
MFR: RCA
SKU: 5814A-COMMAND-RCA

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