Tubes - Transmitting, Audio, Misc.

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.

New Old Stock * No longer available for export
MFR:  Ken-Rad
SKU: 813-KR

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.

New Old Stock * No longer available for export
MFR:  National Union
SKU: 813-NU

• Special version of 6AK5
• "D" Getter
• Black Plates

New old stock * No longer available for export
MFR: Mullard
SKU: 6AK5W/5654

Subminiature type
MFR: GE, Collins, Raytheon, Sylvania
New Old Stock * No longer available for export
SKU: 5840

Designed to be used in a variety of low frequency applications as well as RF amplifier service up to 400 MC
MFR: Sylvania
Used * No longer available for export
SKU: 5906-CL