Transmitting Tubes

The 813 beam power tube was very popular with amateur radio operators following WW II. The tube remained a staple of amateur radio until single sideband became a popular operating mode in the late 1950's and early 1960's. Featuring a graphite plate with an ICAS dissipation rating of 125 watts the tube was very economical and a pair could provide legal limit operation (1 kilowatt input) on CW or AM.

Used * No longer available for export
MFR:  General Electric Company
SKU: 813-GE-P

• Maximum anode dissipation: 20 Watts at each anode
• Equivalent to 5894/C178A

New Old Stock * No longer available for export
MFR: Mullard Manufacturing Company
Made in Great Britain
SKU: QQV06-40A

Data Sheet

Hydrogen Thyratron for radar modulation applications. 8KV peak, 100mA average, 90A peak anode current. Super Jumbo 4pin base with bayonet.

New Old Stock * No longer available for export
MFR: Philips
Made in Holland
SKU:4C35-Philips

RF beam power tetrode rated for a maximum anode dissipation of 12W and intended for use at frequencies up to 175 MHz.

New Old Stock * New In Box * No longer available for export
MFR: Mullard 
Made in Great Britain
SKU: QV03-12-GB

Data Sheet

New Old Stock * No Longer Available for Export
MFR: Sylvania
SKU: 807W-SYL-P

• Filament: Thoriated Tungsten
• Voltage: 7.5
• Current: 20 - 22.7 Amps
• Amplification Factor: 6.1 - 7.7

Used * No longer available for export
MFR: RCA
SKU: 4-1000A-RCA-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.

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

Used * No longer available for export
MFR: Amperex
Made in France
SKU: 4-1000A-AMP-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.

The 813 beam power tube was very popular with amateur radio operators following WW II. The tube remained a staple of amateur radio until single sideband became a popular operating mode in the late 1950's and early 1960's. Featuring a graphite plate with an ICAS dissipation rating of 125 watts the tube was very economical and a pair could provide legal limit operation (1 kilowatt input) on CW or AM. Later tubes manufactured by RCA and Amperex featured an improved plate made of zirconium-coated nickel.

Used * No longer available  for export
MFR:  RCA
SKU: 813-RCA-P

Designed for rectifier use in equipment requiring a high peak inverse voltage rating.
New old stock * No longer available for export.
MFR: Chatham Electronics
SKU: 5R4WGA

NSN: 5960-00-284-5823