triode amplifier

Record Mart HIFI

WELBORNE LABS LAUREL 300B TRIODE AMPLIFIER Record Mart HIFI $2,995 Dec 30, 2024

Bazar BG

300B MkI Single-Ended TRIODE amplifier Bazar BG BGN 20,000 Aug 2, 2023

US Audio Mart

Conrad Johnson Premier 11XS triode amplifier (amp) w/ C1 Capacitor upgrade US Audio Mart $3,595 May 30, 2025

Audio-markt

Tobian soundsystems sc12 triode pre-amplifier Audio-markt €19,000 34% Apr 12, 2024

Bonanza

2 NOS RCA 6C5 Metal Bulb Triode Amplifier Tube Tested Mil TV- 10B 1260 min Gm Bonanza $6 Apr 15, 2025

Kleinanzeigen

Cayin CS 845 A röhren--verstärker - triode - tube--amplifier Kleinanzeigen €4,599 Jul 21, 2022

US Audio Mart

Zen Triode SET Amplifier model: SE34I.5 US Audio Mart $2,000 Jun 8, 2025

The Music Room

Unison Research Triode 25 Integrated Amplifier The Music Room $4,999 11% Apr 1, 2022

SkyFi Audio

Jadis 845SE Triode Monoblock Amplifier Pair, Barely Used Sale price$19,990.00 SkyFi Audio - Aug 10, 2024

Canuck Audio Mart

1930's Custom Jefferson PushPull Industrial Triode Power Amplifier with Taylor TZ20 Canuck Audio Mart CA$450 44% Jul 4, 2022

Reverb

Unison Research Triode 25 Stereo Integrated Amplifier $2,480 4% May 4, 2025

OldSound

OP70/1000 TUNGSRAM VALVE 75-1000 MC1/50 T1060 PAIR EXTREMELY RARE TRIODE DHT AMPLIFIER OUTPUT POWER (NOS) OVER 100% OldSound €1,799 Sep 25, 2023

Audiogon

VTL ST-150 Stereo Tube Power Amplifier - Tetrode / Triode Switchable Audiogon $4,500 61% Nov 15, 2024

Reverb

UNISON RESEARCH Triode 25 - Stereo Integrated Tube Amplifier - NEW! $3,569 3% Apr 11, 2025

The Music Room

Unison Research Triode 25 Stereo Tube Integrated Amplifier; Cherry The Music Room $1,976 14% Apr 3, 2025

Canuck Audio Mart

REDUCED Single Ended Triode Class A Headphone / Pre Amplifier Canuck Audio Mart CA$1,650 11% May 1, 2025

Reverb

Rare Triad HF-18A Triode/Pentode Tube Amplifier HSM-189 Output can use KT88/KT66 $899 40% Jun 13, 2024

OldSound

E140 SFR (Société Française du Radiotéléphon) TC04/10 OQ10/400 AUDIO AMPLIFIER TRIODE VALVE NOS/NIB OldSound €169 15% May 17, 2023

Audiogon

Unison Research Triode 25 Stereo Tube Integrated Amplifier; Cherry (76785) Audiogon $2,037 11% Apr 17, 2025

Reverb

Rare Brook Triode 2a3 tube amplifier 1950s - Metal $4,999 Jun 16, 2024

OldSound

RE304 TELEFUNKEN VALVE KL71411 LK430 TRIODE DHT AUDIO POWER AMPLIFIER 100% OK OldSound €199 Sep 17, 2024

OldSound

E88CC TELEFUNKEN ⩤⩥ 6DJ8 ECC88 6922 7308 CV4108 CCa VALVE DOUBLE TRIODE AUDIO PRE-AMPLIFIER NOS/NIB OldSound €246 1% Sep 1, 2023

Trademe NZ

Auckland Closes: Tue, 17 Jun Cayin CS-805A SET (Single Ended Triode) Integrated Valve Amplifier Brand New Free shipping Buy Now $11,999 Trademe NZ NZ$11,999 Jun 11, 2025

Canuck Audio Mart

FOR SALE or TRADE: NIRARU PCL86 Single Ended Stereo 3-Watt Triode-Beam Power Tube Amplifier Canuck Audio Mart CA$500 Jun 10, 2025

OldSound

LK4112 VALVO E406N PX4110 OUT-PUT TRIODE VALVE AUDIO POWER AMPLIFIER +100% OK OldSound €281 30% Sep 1, 2023

OldSound

6C33C OTK 6C33C-B 6C18C VALVE TRIODE IHT POWER Amplifier SPECIAL C-B MILITARY AUDIO AMPLIFICATION NOS/NIB OldSound €119 Jan 29, 2025

US Audio Mart

KT88 EL34 Single Ended Triode UL Stereo Vacuum Tube Amplifier- All Metal Chassis US Audio Mart $879 2% Dec 24, 2023

OldSound

2A3 RCA CV1831 5930 VT-95 VALVE BI-PLATE "BLACK" TRIODE DHT AUDIO POWER AMPLIFIER 100% OK OldSound €239 Mar 30, 2025

OldSound

71A RCA UX171A CX71A 471A VALVE PAIR TRIODE DHT FINAL POWER AMPLIFIER AUDIO NOS/NIB OldSound €360 25% Sep 1, 2023

OldSound

2A3 RCA CV1831 5930 VT-95 VALVE PAIR BI-PLATE "BLACK/GRAPHITED" TRIODE DHT AUDIO POWER AMPLIFIER 100% OK OldSound €469 Mar 28, 2025

US Audio Mart

Air Tight ATM 300R (Reference) Directly Heated Triode (DHT) 300B Tube Amplifier - Takatsuki 300B tub US Audio Mart $11,500 18% Jun 18, 2024

OldSound

6DR7 TOSHIBA (MATSUSHITA prod.) DOUBLE TRIODE AUDIO VALVE OSCILLATOR and AMPLIFIER USE "BORDER PATROL" NOS/NIB OldSound €14 Feb 22, 2025

OldSound

6B4G SYLVANIA 6С4С CV851 VALVE PAIR TRIODE DHT POWER ULTIMATE AUDIO AMPLIFIER NOS/NIB OldSound €199 38% Sep 1, 2023

OldSound

602 (aka E406 PHILIPS - 2A3 design-structure) VISSEAUX VERY RARE QUARTET TRIODE DHT POWER SUPPLY AUDIO AMPLIFIER NOS? OldSound €1,372 15% Sep 1, 2023

OldSound

6B4G INTERNATIONAL MACHINER (RCA) 6С4С CV851 TRIODE VALVE DHT AUDIO POWER AMPLIFIER NOS/NIB OldSound €62 22% Sep 1, 2023

OldSound

RE604 TELEFUNKEN KL71414 LK460 D404 (AD1 RS241) TRIODE VALVE DHT AUDIO POWER AMPLIFIER +108% OK OldSound €599 Mar 15, 2025

OldSound

6B4G SYLVANIA 6С4С CV851 VALVE QUAD TRIODE DHT POWER OUTPUT AUDIO AMPLIFIER NOS/NIB OldSound €319 Jun 14, 2025

OldSound

RE604 TELEFUNKEN KL71414 LK460 D404 (AD1 RS241) TRIODE VALVE DHT AUDIO POWER AMPLIFIER 95-100% OK OldSound €489 17% Sep 1, 2023

OldSound

E80CC PHILIPS MINIWATT 6085 CV5989 ECC87 PAIR DOUBLE TRIODE VALVE SPECIAL QUALITY AUDIO PREAMPLIFIER AMPLIFIER NOS/NIB OldSound €284 5% Jan 11, 2024