Tubes - Transmitting, Audio, Misc.

• Filament: Thoriated Tungsten
• Voltage: 7.5
• Current: 21 Amps
• Amplification Factor: 7

New Old Stock * No longer available for export
MFR: Amperex
Made in France
SKU: 4-1000A-AMP

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.

Amperex Transmitting Tube, Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Amperex
SKU: 4CX250R-AMP-NOS

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.

Designed to operate as a transmitting tube up to 500MC
New Old Stock * No longer available for export
Limited 90 Day Warranty
MFR: Amperex
SKU: 5894

Radiation cooled Twin Tetrode designed for push-pull Class C operation at frequencies up to 1000 Mhz.
New Old Stock * No longer available for export.
MFR: Amperex * Made in Holland
Limited 90 Day Warranty
SKU: 7377

QB4 / 1100GA, Graphite Anode
Limited 90 Day Warranty, 
New Old Stock * No longer available for export
MFR: Amperex - Made in France
SKU: 4-400A-AMP 

This tube is similar to Motorola p/n# 97-136A01

New Old Stock, No longer available for export
MFR: Amperex
SKU: 8643-AMP

Requires new chimney When upgrading from 4CX250B
New Old Stock, No longer available for export
MFR: Amperex 
SKU: 8930-AMP

New old stock * No longer available for export.

MFR: Amperex 

SKU: 4-65-AMP

QB4 / 1100GA, Graphite Anold
Used * No longer available for export
MFR: Amperex
SKU: 4-400AX-AMP-P