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![]() |

Custom Parasitic Suppressor for High Transconductance with Hi -Mu (Pull)
In Stock
- Designed for high power tube applications
- Includes one Carborundum 886 SP330K 33 Ohm Resistor 10%
- Overall size: 6-1/8" long x 2-13/16" diameter
Used * No longer available for export
MFR: East Coast Induction
SKU: CPS-ECI-P

PLCAP3 Ceramic Plate cap for tubes with plate diameter of 0.25"
In Stock
Ceramic Plate cap for tubes with plate diameter of 0.25",
MFR: China
SKU: PLCAP3
Add to Cart
HR-6 Eimac Heat-Dissipating Connector Top Cap (Pull)
In Stock
Will fit 3-400Z, 3-500Z & ZG, 4-400A, & 4-400C
Size: 0.88" High x 0.82" Diameter
0.367" Hole Diameter
Used * No longer available for export
MFR: EIMAC
SKU: HR-6-P

HR-1 Eimac Heat-Dissipating Connector Top Cap (NOS)
In Stock
For 2-25A and 3C24 tubes and tubes with a .052" pin.
New Old Stock * No longer available for export
MFR: Eimac
SKU: HR-1-EI

HR-8 Eimac Heat-Dissipating Connector Top Cap (NOS)
In Stock
New Old Stock * No longer available for export
Fits 3-1000Z, 4-1000A, 4PR1000A and 833 tubes
MFR: Eimac
SKU: HR-8-EI-NOS
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HR-7 Heat-Dissipating Connector Top Cap (Pull)
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.
Used * No longer availabale for export
MFR: Generic Brand
SKU: HR-7-GEN-P

926H-138 Birtcher Anode Clamp for 4CX250B, 4X150, 4CX150, 4CX350 (Pull)
In Stock
926H-138 Birtcher Anode Clamp for 4CX250B, 4X150, 4CX150, 4CX350 (Pull)
Used
MFR: Birtcher
SKU: 926H-138-P

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

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-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