4-400a tube

4-400a tube Hot Sales

4-400a tube in Amazon
AMPEREX 4-400A PAIR NIB TRANSMITTER TUBE
$599.99

AMPEREX 4-400A PAIR NIB TRANSMITTER TUBE

Amperex 4-400A NOS NIB Mint, working perfectly, Matched Pair
$498.65

Amperex 4-400A NOS NIB Mint, working perfectly, Matched Pair

2PCS 5pin U5G Ceramic Tube Socket For 4-400A 3-500Z 4-400 4-125 AUDIO AMP DIY
$17.13

2PCS 5pin U5G Ceramic Tube Socket For 4-400A 3-500Z 4-400 4-125 AUDIO AMP DIY

5pin GOLD PLATED TUBE SOCKET for 4-400A 3-500Z 4-400 4-125 AUDIO AMP DIY x2
$19.90

5pin GOLD PLATED TUBE SOCKET for 4-400A 3-500Z 4-400 4-125 AUDIO AMP DIY x2

Vintage NOS Eimac 8438 / 4-400A Radio Tube In Box, Ham Radio
$100.00

Vintage NOS Eimac 8438 / 4-400A Radio Tube In Box, Ham Radio

PENTA PL-4-400A Tube Device??? I Don’t Know What It’s For
$250.00

PENTA PL-4-400A Tube Device??? I Don’t Know What It’s For

Eimac 4-400a Transmiting Tube
$110.50

Eimac 4-400a Transmiting Tube

Two 8438/4-400A Ham Transmitting Tubes
$160.00

Two 8438/4-400A Ham Transmitting Tubes

AMPEREX 4-400B TW0 TRANSMITTER TUBES NOS ORIGINAL BOX HAM RADIO
$350.00

AMPEREX 4-400B TW0 TRANSMITTER TUBES NOS ORIGINAL BOX HAM RADIO

Vintage Eimac 4-400A Radio + 1 Unnamed Transmitting Tubes UNTESTED “L@@K”
$79.99

Vintage Eimac 4-400A Radio + 1 Unnamed Transmitting Tubes UNTESTED “L@@K”

3-500ZG / 4-400A TUBE SOCKET
$18.00

3-500ZG / 4-400A TUBE SOCKET

CAY38356 4-400A Tube Socket 1pc
$12.00

CAY38356 4-400A Tube Socket 1pc

Philips QB 4/1100 8438 4-400A NOS NIB Made In Holland
$480.00

Philips QB 4/1100 8438 4-400A NOS NIB Made In Holland

1PC U5G 5Pin Valve Tube Socket Gold 4-400A,4-125,3-500Z, 4-400 Tube Amp Audio
$11.55

1PC U5G 5Pin Valve Tube Socket Gold 4-400A,4-125,3-500Z, 4-400 Tube Amp Audio

2PCS 5pin U5G Ceramic Tube Socket For 4-400A 3-500Z 4-400 4-125 AUDIO AMP DIY
$16.95

2PCS 5pin U5G Ceramic Tube Socket For 4-400A 3-500Z 4-400 4-125 AUDIO AMP DIY

One C1136 / 4-400A Transmitting Tube, By English Electric, Guarantee With Refund
$85.00

One C1136 / 4-400A Transmitting Tube, By English Electric, Guarantee With Refund

Eimac 4-400A Jan-cim-4-400A Made in USA 6039 Electron Tube Untested w/ Socket
$110.99

Eimac 4-400A Jan-cim-4-400A Made in USA 6039 Electron Tube Untested w/ Socket

Amperex 4-400A Ham Radio Transmitting Vacuum Tubes NO WAY TO TEST 👀NEW
$150.00

Amperex 4-400A Ham Radio Transmitting Vacuum Tubes NO WAY TO TEST 👀NEW

Eimac SK-400 Socket for 4-400A/4-400C/4-125A/4PR250C/4PR125A/4PR400A/5-500A
$149.99

Eimac SK-400 Socket for 4-400A/4-400C/4-125A/4PR250C/4PR125A/4PR400A/5-500A

AMPEREX 4-400A PAIR NEW OLD STOCK TRANSMITTER TUBES RADIO MADE IN ITALY NOS
$599.99

AMPEREX 4-400A PAIR NEW OLD STOCK TRANSMITTER TUBES RADIO MADE IN ITALY NOS

4-400A PL-4-400A Penta Labs Electron Tube Valve
$251.60

4-400A PL-4-400A Penta Labs Electron Tube Valve

EIMAC SK-400 SOCKET FOR 4-400A, 4-400C, 4-125A, 4PR400A, 5-500A, 4PR250C (USED)
$70.00

EIMAC SK-400 SOCKET FOR 4-400A, 4-400C, 4-125A, 4PR400A, 5-500A, 4PR250C (USED)

QB4/1100 4-400A Adzam Electron Tube Valve
$179.70

QB4/1100 4-400A Adzam Electron Tube Valve

4-400A 4-400 Eimac Electron Tube Valve
$280.40

4-400A 4-400 Eimac Electron Tube Valve

Pair New Ceramic 5 pin Jumbo Vacuum Tube Sockets for 3-500Z, 4-400A, 4-125, etc
$27.49

Pair New Ceramic 5 pin Jumbo Vacuum Tube Sockets for 3-500Z, 4-400A, 4-125, etc

1 Amperex 4-400A TRANSMITTING tube STRONG OUTPUT ANOS guitar ham radio amplifier
$100.00

1 Amperex 4-400A TRANSMITTING tube STRONG OUTPUT ANOS guitar ham radio amplifier

Vintage Tubes Bundle Rare Eimac 4-400A Ampex RCA 4-400 A RCA 866A as-is
$450.00

Vintage Tubes Bundle Rare Eimac 4-400A Ampex RCA 4-400 A RCA 866A as-is

One 4/400A (8438) Transmitting Tube, By Eimac, Guarantee With Refund
$129.00

One 4/400A (8438) Transmitting Tube, By Eimac, Guarantee With Refund

MA94 CX1140 4-400A QB4/1100GA RS1002A EEV Tube Socket Made in UK
$46.00

MA94 CX1140 4-400A QB4/1100GA RS1002A EEV Tube Socket Made in UK

(QTY:2) Tube Socket for 4-400A 4-250A 4-125A + Others Changable
$40.00

(QTY:2) Tube Socket for 4-400A 4-250A 4-125A + Others Changable

4-400A/ 8438 QBA /1100GA AMPEREX TRANSMIT VACUUM TUBE VALVE MADE IN FRANCE NOS
$499.99

4-400A/ 8438 QBA /1100GA AMPEREX TRANSMIT VACUUM TUBE VALVE MADE IN FRANCE NOS

3-500Z Tube Socket
$20.00

3-500Z Tube Socket

4-400A / 8438
$499.95

4-400A / 8438

4PR400A / 8188
$349.95

4PR400A / 8188

PHILIPS 4-400A QB4-1100GA EIMAC 8438 CECC 45-03-006 VINTAGE TETRODE TUBE USED
$190.00

PHILIPS 4-400A QB4-1100GA EIMAC 8438 CECC 45-03-006 VINTAGE TETRODE TUBE USED

1 X 4-400B AMPEREX TUBE. MADE IN FRANCE. NOS/NIB CH ENA
$272.99

1 X 4-400B AMPEREX TUBE. MADE IN FRANCE. NOS/NIB CH ENA

RADIAL BEAM POWER TETRODE ELECTRON TUBE * EIMAC 4-400C / 6775 = PL-6775 (400W)
$490.00

RADIAL BEAM POWER TETRODE ELECTRON TUBE * EIMAC 4-400C / 6775 = PL-6775 (400W)

Jumbo 5pin 3-500z 4-400A TB3/750 QB3/300 Tube Valve Socket RS1026 2 pcs UK made
$69.99

Jumbo 5pin 3-500z 4-400A TB3/750 QB3/300 Tube Valve Socket RS1026 2 pcs UK made

One NOS VINTAGE Johnson 5 pin U5G Ceramic Socket NOS for 3-500Z 4-400A 803 ...
$37.00

One NOS VINTAGE Johnson 5 pin U5G Ceramic Socket NOS for 3-500Z 4-400A 803 ...

PENTA PL-4-400A (4-400A) NOS Valve Tube
$188.52

PENTA PL-4-400A (4-400A) NOS Valve Tube

QB4/1100GA - JAN 4-400A With Ventilated Base NOS Philips Valve Tubes
$364.47

QB4/1100GA - JAN 4-400A With Ventilated Base NOS Philips Valve Tubes

New EIMAC 7527 Vacuum Tube - 4-400A Equivalent
$125.94

New EIMAC 7527 Vacuum Tube - 4-400A Equivalent

Eimac JAN 8438 (CV3879) (4-400A) NOS Valve Tube
$439.88

Eimac JAN 8438 (CV3879) (4-400A) NOS Valve Tube

Amperex 8438/4-400A NOS Valve Tube
$439.88

Amperex 8438/4-400A NOS Valve Tube

4x G-811, G811 ~ 811A Generator Beam Triode Tube Soviet MATCHED QUAD 1980's NEW
$159.99

4x G-811, G811 ~ 811A Generator Beam Triode Tube Soviet MATCHED QUAD 1980's NEW

NOS w/ original box RADIOTRON AERIOTRON WD-11 BRASS BASE TIP tubes 864 99 01A #4
$175.00

NOS w/ original box RADIOTRON AERIOTRON WD-11 BRASS BASE TIP tubes 864 99 01A #4

RARE MAZDA PP3/425 -PX4 - PX25 / V503 PP5-400 TRIODE TUBE #3
$235.00

RARE MAZDA PP3/425 -PX4 - PX25 / V503 PP5-400 TRIODE TUBE #3

4 GE RCA Radiotron UV 201A Radio Tube, Brass Base, Tip, Good Filament C301A Ampl
$69.00

4 GE RCA Radiotron UV 201A Radio Tube, Brass Base, Tip, Good Filament C301A Ampl

Eimac 4-1000A Tube, New in Opened Box, Excellent Condition
$374.95

Eimac 4-1000A Tube, New in Opened Box, Excellent Condition

Quad MATCHED / 4 GE General Electric 6550A / Vacuum Tubes & Boxes Tested
$99.99

Quad MATCHED / 4 GE General Electric 6550A / Vacuum Tubes & Boxes Tested

New Listingtype C-324 Cunningham radio audio amplifier vacuum 4 tubes valves Globe 224 24a
$39.99

New Listingtype C-324 Cunningham radio audio amplifier vacuum 4 tubes valves Globe 224 24a

New Listingtype Philco 24 224 224A radio audio amplifier vacuum 4 tubes valves Globe shape
$39.99

New Listingtype Philco 24 224 224A radio audio amplifier vacuum 4 tubes valves Globe shape

(4) Tung-Sol Platinum Factory Matched Quad 7591A 7591 Tubes - For Tube Amps
$211.00

(4) Tung-Sol Platinum Factory Matched Quad 7591A 7591 Tubes - For Tube Amps

Lot of 5 different Deforest type tube - DV2, DV3A, DV3A, DL4, DL5
$225.00

Lot of 5 different Deforest type tube - DV2, DV3A, DV3A, DL4, DL5

A Matched quad New production Russia EH Electro-harmonix 6550 / KT88 tubes #4
$195.00

A Matched quad New production Russia EH Electro-harmonix 6550 / KT88 tubes #4

Electron Tube 4CX1000A
$400.00

Electron Tube 4CX1000A

4 TV-7 TESTED GOOD GLOBE CUNNINGHAM C-324 RADIO TUBES TYPE C-324A UY-224 24A
$9.88

4 TV-7 TESTED GOOD GLOBE CUNNINGHAM C-324 RADIO TUBES TYPE C-324A UY-224 24A

Rectifier Vacuum Tube / Valve Lot of 4: 5U4GB Coke Bottle, 5A4R, GZ34, 5U4GB RCA
$8.50

Rectifier Vacuum Tube / Valve Lot of 4: 5U4GB Coke Bottle, 5A4R, GZ34, 5U4GB RCA

New ListingGE 6BK4C 6EL4A NOS NIB 100% Grey Plate Dual O Getter Serious Tubes D418
$12.00

New ListingGE 6BK4C 6EL4A NOS NIB 100% Grey Plate Dual O Getter Serious Tubes D418

1 New and 1 Used GU74B GU-74B Tetrode Tube 4CX800A QRO
$92.00

1 New and 1 Used GU74B GU-74B Tetrode Tube 4CX800A QRO

RCA Electron Tube JAN CRC-4X150A
$34.95

RCA Electron Tube JAN CRC-4X150A

4-1000A Homemade Tube Socket
$40.00

4-1000A Homemade Tube Socket

Vintage Amperex 4-250A Made in Holland Radio Transmitter Vacuum Tube
$39.00

Vintage Amperex 4-250A Made in Holland Radio Transmitter Vacuum Tube

☢️EIMAC 4-65A RADIO TRANSMITTER VACUUM TUBE NOS URANIUM GLASS BRIGHT GLOW
$50.00

☢️EIMAC 4-65A RADIO TRANSMITTER VACUUM TUBE NOS URANIUM GLASS BRIGHT GLOW

NOS NIB JAN- CEP- 4X150A AMPEREX TRANSMITTER TUBE / 1956 STILL IN SEALED PACKAGE
$23.60

NOS NIB JAN- CEP- 4X150A AMPEREX TRANSMITTER TUBE / 1956 STILL IN SEALED PACKAGE

MATCHED QUAD (4) RCA 12AX7A ECC83 Premium Vintage Audio VACUUM TUBES 7.7876
$249.95

MATCHED QUAD (4) RCA 12AX7A ECC83 Premium Vintage Audio VACUUM TUBES 7.7876

Lot of 4 type 2A3 AUDIO TUBES - #3
$195.00

Lot of 4 type 2A3 AUDIO TUBES - #3

RARE NOS QUAD RCA SQUARE GETTER 3 MICA 5670 2C51 396A 6386 4 TUBES BLACK PLATES
$234.00

RARE NOS QUAD RCA SQUARE GETTER 3 MICA 5670 2C51 396A 6386 4 TUBES BLACK PLATES

Lot Of (4) RCA Cunningham 6A4LA Vacuum Tube Engraved, Tested Strong W/ Boxes
$47.99

Lot Of (4) RCA Cunningham 6A4LA Vacuum Tube Engraved, Tested Strong W/ Boxes

9
$125.00

9" Vintage Vacuum Tube Eimac JAN 8166 / 4-1000A Radio Transmitting Tube Untested

Vintage Cunningham Radiotron CX-301A & 01A Radio Tubes 4-Pin Strong
$1.00

Vintage Cunningham Radiotron CX-301A & 01A Radio Tubes 4-Pin Strong

LOT OF 4 TUBE SOCKET ADAPTERS PU A76 6AH6, PU A75 12AU7 & (2) PU A77 5881
$14.88

LOT OF 4 TUBE SOCKET ADAPTERS PU A76 6AH6, PU A75 12AU7 & (2) PU A77 5881

4 NOS EI Telefunken Tooling 6GH8A Bulk Packed Vacuum Tubes = 6U8 6EA8 6F2
$19.95

4 NOS EI Telefunken Tooling 6GH8A Bulk Packed Vacuum Tubes = 6U8 6EA8 6F2

1 NOS NIB MILITARY RCA JAN CRC-4X150A TUBE FROM 1964 STILL SEALED-3 AVAILABLE
$23.60

1 NOS NIB MILITARY RCA JAN CRC-4X150A TUBE FROM 1964 STILL SEALED-3 AVAILABLE

1437 LOT OF 68 6DW4B 7S7 7B5 446A 6K7 6W4 7AG7 17BF11 3DJ3 844 ETC VACUUM TUBES
$6.99

1437 LOT OF 68 6DW4B 7S7 7B5 446A 6K7 6W4 7AG7 17BF11 3DJ3 844 ETC VACUUM TUBES

EIMAC JAN CIM 100 TH (VT-218) 3-100A4 Bulb TRANSMITTING Vacuum Tube #G.7556
$169.00

EIMAC JAN CIM 100 TH (VT-218) 3-100A4 Bulb TRANSMITTING Vacuum Tube #G.7556

Eimac 4-125A Transmitter Tube Guaranteed 4D21 New With Original Box And Wrap
$112.49

Eimac 4-125A Transmitter Tube Guaranteed 4D21 New With Original Box And Wrap

GE 5U4GB/5AS4A Vacuum Tub Pair Extra Strong Close Testing Pair Vacuum Tubes
$21.95

GE 5U4GB/5AS4A Vacuum Tub Pair Extra Strong Close Testing Pair Vacuum Tubes

New ListingNOS Tung-Sol 6BN4A Vacuum Tube
$8.99

New ListingNOS Tung-Sol 6BN4A Vacuum Tube

Radial Beam Power Tetrode Transmission Tube 4-400 Hand Written Amateur Ham AS-IS
$29.99

Radial Beam Power Tetrode Transmission Tube 4-400 Hand Written Amateur Ham AS-IS

Vintage Taylor HD 203A, Tube HD203A Transmitting Triode Jumbo 4-pin Bayonet
$30.00

Vintage Taylor HD 203A, Tube HD203A Transmitting Triode Jumbo 4-pin Bayonet

New ListingLindal Japan 6BK4C 6EL4A NOS NIB 100% Grey Plate Serious Tubes D419
$12.00

New ListingLindal Japan 6BK4C 6EL4A NOS NIB 100% Grey Plate Serious Tubes D419

(4) NOS to Strong RCA Blackplate 2A3 Triode Radio Audio Tubes
$250.00

(4) NOS to Strong RCA Blackplate 2A3 Triode Radio Audio Tubes

New Listing3252 Lot Of 70 6N090 12NQ120 115C20 3-16 3-4 3-16 6-4 12F60 1DG3A Vacuum Tubes
$18.99

New Listing3252 Lot Of 70 6N090 12NQ120 115C20 3-16 3-4 3-16 6-4 12F60 1DG3A Vacuum Tubes

0384 Lot Of 155 16AQ5 12BK5 12AV7 12AT6 1S4 6BJ7 16A8 17C3 17CT3 Vacuum Tubes
$9.99

0384 Lot Of 155 16AQ5 12BK5 12AV7 12AT6 1S4 6BJ7 16A8 17C3 17CT3 Vacuum Tubes

3274 Lot Of 400 Korea 6GH8A Vacuum Tubes
$33.00

3274 Lot Of 400 Korea 6GH8A Vacuum Tubes

Lot Of 4 50C5 - TESTED GOOD VACUUM TUBES
$5.00

Lot Of 4 50C5 - TESTED GOOD VACUUM TUBES

New ListingMixed Group of Vintage Vacuum Tubes, Tube Holders RCA GE USED Untested
$137.50

New ListingMixed Group of Vintage Vacuum Tubes, Tube Holders RCA GE USED Untested

Sleeve of 5 NOS Raytheon 6S4A Tubes
$3.49

Sleeve of 5 NOS Raytheon 6S4A Tubes

LOT 2 ☢️EIMAC 4-65A RADIO TRANSMITTER VACUUM TUBES URANIUM GLASS BRIGHT GLOW
$80.00

LOT 2 ☢️EIMAC 4-65A RADIO TRANSMITTER VACUUM TUBES URANIUM GLASS BRIGHT GLOW

Huge Lot of Mostly NOS GE Vacuum Tubes 6S4A 6AS6 6AK5 6AH6 6W6 12A6 6CD6GA 12SJ7
$60.00

Huge Lot of Mostly NOS GE Vacuum Tubes 6S4A 6AS6 6AK5 6AH6 6W6 12A6 6CD6GA 12SJ7

A+ Lot (5) 1963/4 Amperex Philips Heerlen 6DJ8 ECC88 Preamp Tubes “O” Halo GA7
$145.00

A+ Lot (5) 1963/4 Amperex Philips Heerlen 6DJ8 ECC88 Preamp Tubes “O” Halo GA7

0395 Lot Of 155 6AM8A 6AH6 6AG5 6AQ6 6AM4 6AC5 Vacuum Tubes
$9.99

0395 Lot Of 155 6AM8A 6AH6 6AG5 6AQ6 6AM4 6AC5 Vacuum Tubes

Eimac 4PR400A 6226 Tube
$89.99

Eimac 4PR400A 6226 Tube

GS-36B GS36 Tetrode Tube Svetlana eq. 4CX400A
$89.00

GS-36B GS36 Tetrode Tube Svetlana eq. 4CX400A

4-400a tube Recommended

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4-400c tube 3-500z tube 3-400 tube 4-250 tube 4-1000 tube

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4-400a tube Information

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