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![]() |

KT88 RF Parts Audio Tube (6550) (NOS)
In Stock
KT88 RF Parts Audio Tube
New Old Stock * No longer available for export
MFR: China
SKU: KT88-RFP

KT88 Svetlana Audio Tubes (NIB)
In Stock
The Svetlana™ KT88 is a glass envelope beam power tetrode. It is intended for audio frequency power amplification service.
New In the Box * No longer available for export
MFR: Svetlana, Russia
SKU: KT88-SVET
Add to Cart

KT88 RF Parts Audio Tubes, Matched Pair (6550)
In Stock
KT88 RF Parts Audio Tubes,
MFR: China
SKU: KT88MP
Add to Cart

6550 General Electric Vintage Beam Power Amplifier/Audio Tube with Smooth Plates (NOS)
In Stock
- Date code: 63-30
- Smooth Grey plates
New Old Stock * No longer available for export
MFR: General Electric Company
SKU: 6550-GE-63-NOS

6550 General Electric Vintage Beam Power Amplifier/Audio Tube ( NOS)
In Stock
- Date code: 63-30
- Smooth Grey plates
New Old Stock * No longer available for export
MFR: General Electric Company
SKU: 6550-GE-63-NOS

GT-6550 Grove Tubes Beam Power Amplifier/Audio Tube (Pull)
In Stock
- Low hour pull
- 2 Top Getters
- 1 Side Getter
Used * No longer available for export
MFR: Grove Tubes
SKU: 6550-GT-P

KT88 Stromberg-Carlson SC1000 Rebranded Genalex Made in Great Britain (Pull)
In Stock
- Low Hour Pull
- Tested on a Hockok 539C
- Gm range 11250 -11500
Used * No longer available for export
MFR: Genalex
Made in Great Britain
SKU: SC1000-KT88-P

6550 Tung-Sol Beam Power Amplifier Tube (New Production- Russia)
In Stock
Size: 3.7" tall (base to top of tube) x 1.97" diameter, 4.24" Overall length.
New Production * No longer available for export
MFR: Tung-Sol
Made in Russia
SKU: 6550-TUNG-NOS-RUS
Add to Cart

6550C Svetlana High Performance Audio Beam Power Pentode Matched Quad (4) (NIB)
In Stock
The Svetlana™ 6550C is a glass envelope beam power pentode. It is intended for ultra linear audio frequency power amplification service. Close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance.
New In Box * No longer available for export
MFR: Svetlana Electron Devices, Inc.
Made in Russia
SKU: SV6550C-MQ

6550B-3 Svetlana High Performance Audio Beam Power Pentode (NIB)
In Stock
The 6550B is an early Svetlana variant of the 6550 made in the 80's.
New In Box * No longer available for export
MFR: Svetlana Electron Devices, Inc.
Made in Russia
SKU: SV6550B-3