EIMAC

4-500B  Transmitting Tube, Tetrode, Glass,  MFR:Triton

Limited Quantity Available, New Old Stock, Not for Export

New Old Stock * No longer available for export
MFR: Amperex
SKU: 4CS250H-AMP

New Old Stock * No longer available for export
MFR: Eimac 
SKU: 8560AS-EI
Six Month Warranty

• Cathode: Oxide Coated Unipotential
• Voltage: 6.0 + 0.3 volts
• Current at 6.0 volts: 8.2 Amps
• Amplification Factor (Average): 3.4

New old Stock  * No longer available for export
MFR: Eimac
SKU: 8295A

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.

Transmitting Tube Radial Beam Power, Tetrode, Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4X500A
Six Month Warranty

Ruggedized construction allows the 4CS250R to be operated in applications where shock and/or vibration is experienced.

The Sealed Bag was ripped and allowed air to reach the tube resulting in minor corrosion around the threaded hole. Corrosion has been removed.

New Old Stock, Not for Export
MFR: Amperex
SKU: 4CS250R

Transmitting Tube, Pulse Rated, 4PR60C/8252W Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Jan/Eimac, USA
SKU: 4PR60C

8188/4PR400A Radial-beam Pulse Tetrode Modulator Oscillator Amplifier tube.

New Old Stock 
MFR: Eimac
SKU: 4PR400A

• Filament: Thoriated Tungsten
• Voltage: 7.5 volts
• Current: 20 – 22.7 Amps
• Amplification Factor: 6.9

Used * No longer available for export
MFR: Eimac
SKU: 4PR1000A-EI-P

Data Sheet

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