6550 / KT88

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-MP-RUS

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-MP-SVET

These vintage RCA tubes have three getters and smooth plates with 3 holes.

New Old Stock / New In the Box * No longer available for export

MFR: RCA, USA
SKU: 6550-RCA

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-MP

The 6550 is a beam pentode power amplifier primarily designed for audio service up to 100 watts output.

New Old Stock * No Longer Available for Export
MFR: Raytheon
Made in USA
SKU: 6550-RAY

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

KT88 RF Parts Audio Tubes,

MFR: China

SKU: KT88MP

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

• 3.95" tall, base to top of tube
• 1.775" diameter 
• 4.43", overall height

New Old Stock - No longer available for export
MFR: RF Parts Company
Made in China
SKU: 6550A-RFP