Radio & Amplifier Service Parts

The Y-448 is Eimac's version of the 4-PR1000A, which is a pulse-rated 4-1000A tube. 
Low Hour Pull * No longer availble for export
MFR: Eimac
SKU: Y-448-EI

• Filament: Thoriated Tungsten
• Voltage: 5.0 ± 0.25 Volts
• Current, at 5.0 Volts: 40 Amps

New Old Stock * No longer available for export
MFR: Penta Labs
SKU: 5CX1500A-PENTA

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

Siemens Transmitting Tube Microwave Triode
New old stock * No longer available for export
MFR: Siemens-Rohre
SKU: 2C39BA-SIEMENS

Designed for rectifier use in equipment requiring a high peak inverse voltage rating.
New old stock * No longer available for export.
MFR: Tung-Sol
SKU: 5R4WGB

NSN: 5960-00-284-5823

6159W Transmitting Tube, (CRC-6159/6159W), special purpose  Beam Power Amplfier.  

No longer available for Export, (NOS)
MFR: JAN/RCA  
SKU: 6159W

The type 4C35 Haudrogen Thyratron is a hot-cathode grid-controlled gas rectifier tube especially designed for pulsing service at high repitition frequencies, high peak currents, and high voltages.

Low Hour Pullout * No longer available for export
MFR: Sylvania
SKU: 4C35-SYL-P

Limited 30 Day Warranty 

Data Sheet

B1634D Transmitting Tube, Glass, Power Tetrode, B1634D, MFR: EEV - E2V (NOS) Made in England

Limited Quantity Available, 90 Day limited over the counter warranty

"Penta" EIMAC Tetrode (BISK4N53614217) Industrial
New Old Stock * No longer available for export
MFR: Eimac, USA
SKU: 4CX600JA-Eimac/Penta
Six Month Warranty