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![]() |

CK180S Raytheon Tube Socket for 4CX300A and 4CX300Y (Pull)
In Stock
CK180S-P Raytheon Tube Socket for 4CX300A and 4CX300Y
Similar to Y231, SK740, SK760
Used * No longer available for export
MFR: Raytheon
SKU: CK180S-P

Y181 Eimac Tube Socket for 4CX300A/Y (NOS)
In Stock
Tube Socket for 4CX300A and 4CX300Y
New Old Stock
MFR: Eimac
SKU: Y181
Add to Cart

SK700 Eimac Tube Socket 4CX300A and 4CX300Y, Screen Bypass (Pull)
In Stock
Air system socket. One heater terminal grounded to shell. PTFE body insulation. Capacitor is encapsulated.
- Screen Bypass: 1.18 nF ± 10%
Used
MFR: Eimac
SKU: SK700-P
Add to Cart
SK711A Eimac Tube Socket 4CX300A and 4CX300Y (Used)
In Stock
Air System socket. Cathode & 1 heater terminal grounded to shell. PTFE body insulation. Capacitor is encapsulated.
Will work for 4CX125C.
Used
MFR: Eimac
SKU: SK711A-P

SK-740 Eimac Tube Socket for 4CX300A and 4CX300Y (NOS)
In Stock
Light weight thermosetting plastic body, not an air-system socket. For use in non-corresive liquid cooling applications.
New old stock* No longer available for export
MFR: Eimac
SKU: SK740

SK610 and SK606 Combo, Eimac Socket and Chimney (Used)
In Stock
For grounded cathode operation. Screen Cap 2700 pf
Ceramic chimney
Used * No longer available for export
MFR: Eimac
NOTE: Picture for reference. Condition may vary.
SKU: SK610-COMBO-P

SK-2200 Eimac Tube Socket for 3CX1500A7/8877 (Used)
In Stock
Eimac Tube Socket for 3CX1500A7/8877
Removed from new assemblies
Used * No longer available for export
MFR: Eimac
SKU: SK2200-P

Y-254A Eimac Tube Socket Mounting Plate, Anode Clamp, and Chimney (Used)
In Stock
Designed to be used with the 4CX1000A and 4CX1500B tubes
Includes socket, mounting plate, chimney and the anode clamp bracket.
Used * No longer available for export
MFR: Eimac
SKU: Y-254A-WB

SK300A Eimac Air System Tube Socket for 4CX3500A or 4CX5000A Tubes (Pull)
In Stock
Removed from working equipment. Has original circuitry attached as well as two large cable leads coming from the base of the circuit.
The socket has one tooth missing from the top ring.
Used
MFR: Eimac
SKU: SK300A-PWC
NOTE: Picture is the part you will be receiving.

001838 Eimac Middle Filament Collet for SK300 Socket (Pull)
In Stock
This is the collet that fits in middle of 001837 & 001839
Size: 2.8" Inside Diameter
Used
MFR: Eimac
SKU: 001838-P