Tubes - Transmitting, Audio, Misc.
Please choose from the following TUBES Sub-Catagory choices:
572B![]() |
811A![]() |
6146![]() |
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4CX350 Series![]() |
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SOCKETS![]() |
CHIMNEYS![]() |
PLATE CAPS![]() |
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BOOKS![]() |
BASES![]() |
PARASITIC SUPPRESSOR![]() |

Spring Clip for Smaller Plate Caps 0.24-0.25" Diameter
In Stock
Spring clip for older sweep tubes with small plate cap Diameter of 0.24 - 0.25"
SKU: SPRCLP
NOTE: Please check your tubes to make sure diameter fits.
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PLCAP2 Ceramic Plate cap for tubes with plate diameter of 0.35": 6146B / 6146W / 6LQ6 / 6LF6 / 8950 tubes
In Stock
PLCAP2 Ceramic Plate cap for popular tubes with plate diameter of approx. 0.35":
Fits: 6146B, 6146W, 6LQ6, 8950 tubes and more.
MFR: China
SKU: PLCAP2

PLCAP1 Ceramic Plate Cap For 811A , 572B, 866, 813, and 833 Tubes
In Stock
Ceramic Plate cap for Tubes with 0.55" Plate diameter: 811A / 572B / 866 / 813 / 833
Made in China
SKU: PLCAP1
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PC509 Millen Porcelain Plate Cap (36004) 1/4" for EL509/EL519/6KG6 (NOS)
In Stock
These are from OEM Bulk Packaging, not the red Millen boxes.
New Old Stock * No longer available for export
MFR: James Millen Manufacturing Company
SKU: PC509

HR-8 RF Parts Heat-Dissipating Connector Top Cap
In Stock
Fits 3-1000Z, 4-1000A, 4PR1000A and 833 tubes
MFR: RF Parts
SKU: HR-8
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HR-7 Heat-Dissipating Connector Top Cap for 304TL or 304TH
In Stock
Replacement Aluminum Plate Cap / Anode Heat Radiator for 304TL, 304TH, or tubes having 0.126 diameter anode stem. New. Diameter: 1 3/8" Height: 1 3/8" Hole Size: 0.127. Heat dissipating connectors are used to make electrical connections to the plate and grid terminals of Transmitting tubes, and at same time, provide efficient heat transfer from the tube element and glass seal to the air.
New Old Stock * No longer availabale for export
SKU: HR-7
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HR-6 Heat-Dissipating Connector Top Cap, 0.35" HIgh
In Stock
This plate cap will work on Eimac tubes and the 3-500ZG / 3-500Z. Comes with set screws
Size: 1" Diameter x 0.35" High
MFR: RF Parts Company
SKU: HR6-SHORT

FC4 Union Fuse Clip 30 Amps 250V 0.50 Inch Diameter (Pull)
In Stock
- Inside Diameter: 0.50 in. / 12.7 mm.
Used * No longer availale for export
MFR: Union
SKU: FC4

HR-3 Eimac Heat-Dissipating Connector Top Cap (NOS)
In Stock
New Old Stock * No longer available for export
MFR: Eimac, USA
SKU: HR3-Eimac