Tubes - Transmitting, Audio, Misc.

• The RF Parts Company SELECT 811A is the best quality 811A tube in current production.
• Usage tests show it to be equal to the much-respected RCA and Svetlana 811A.
• Base indexed and internal structure aligned and supported for both horizontal and vertical operation.
• Ideal for the Collins 30L1 and similar equipment where tubes mount horizontally.
• Each tube is tested at our San Marcos, CA USA facility, prior to shipment.

Six Month Limited Warranty against manufacturing defects and workmanship.

MFG: China

• The RF Parts Company SELECT 811A is the best quality 811A tube in current production.
• Usage tests show it to be equal to the much-respected RCA and Svetlana 811A.
• Base indexed and internal structure aligned and supported for both horizontal and vertical operation.
• Ideal for the Collins 30L1 and similar equipment where tubes mount horizontally.
• Each tube is tested at our San Marcos, CA USA facility, prior to shipment.

Six Month Limited Warranty against manufacturing defects and workmanship.

MFG: China
SKU: 811A-RFP-M3

• The RF Parts Company Tubes (SELECT) 811A is the best quality 811A tube in current production.
• Usage tests show it to be equal to the much-respected RCA, 811A and Svetlana, 811A.
• Base indexed and internal structure aligned and supported for both horizontal and vertical operation.
• Ideal for the Collins 30L1 and similar equipment where tubes mount horizontal.
• Each RF Parts Company Select tube is tested prior to shipment.

Six Month Limited Warranty against manufacturing defects and workmanship. Sockets in image sold seperately.

MFG: CHINA
SKU: 811A-RFP-MQ

This tube was rebuilt by Econco on an Eimac core.

Used Rebuilt * No longer available for export
MFR: Econco
SKU: 5CX1500B-P

• Filament: Thoriated Tungsten Mesh
• Voltage: 7.5 ± 0.37 Volts
• Current @ 7.5 Volts: 100 A
• Amplification Factor (Average): 20

New Old Stock * No longer available for export
MFR: Svetlana
Made in Russia
SKU: TH6-3-SVET

Data Sheet

This New Old Stock (NOS) tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Ninety Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.

• Filament: Thoriated Tungsten
• Voltage: 7.5 volts
• Current: 94 - 104 Amps
• Amplification Factor: 200

Rebuilt * No longer available for export
MFR: RF Parts Company
SKU: 3CW20000A7-RFPR

Data Sheet

This rebuilt tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Ninety Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.

Glass Transmitting Tube, Tetrode (NOS)
New Old Stock * No longer available for export
MFR: Eimac/Triton
SKU: 4-500A
Six Month Warranty

• Filament: Thoriated Tungsten
• Voltage: 7.5
• Current: 20.0 – 22.7 Amps
• Amplification Factor: 6.1 – 7.

New Old Stock * No longer available for export
MFR: Eimac
SKU: 4-1000A-EI

Data Sheet

This New Old Stock (NOS) tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Ninety Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.