vt 231

US Audio Mart

RCA Grey Glass VT-231 US Audio Mart $155 23% Jul 25, 2025

US Audio Mart

Sylvania 6SN7 gt / VT-231 US Audio Mart $135 Jul 25, 2025

US Audio Mart

Sylvania 6SN7GT VT-231 US Audio Mart $180 20% Sep 11, 2025

Canuck Audio Mart

KEN-RAD VT-231 / 6SN7GT Canuck Audio Mart CA$150 Apr 14, 2025

Canuck Audio Mart

Sylvania & RCA VT231 6sn7gt Canuck Audio Mart CA$90 Nov 12, 2025

Como Ficho

Vendidas - Sylvania 6SN7GT VT-231 NOS Pareja Como Ficho €1 100% Feb 3, 2025

US Audio Mart

RCA VT-231, 6SN7GT WWII era tubes US Audio Mart $140 Aug 3, 2025

Review33

出售: RCA 6SN7 GT/VT231 Smoke Glass Pair Review33 - Dec 17, 2025

Hifi Harrastajat Ry

M: Tung-Sol VT-231 (6SN7 GT), 130, (Oulu) Hifi Harrastajat Ry - Dec 5, 2025

Review33

出售: Ken Rad Kenrad 6SN7GT/VT231 Smoked Glass Pair Review33 - Dec 17, 2025

Yahoo Auctions

JAN-6SN7GT/VT-231 KEN-RAD vacuum tube 2 ps Yahoo Auctions Auction bid
¥21,000 Dec 28, 2025

Hifi

RCA 6sn7 - VT 231 Śląskie | Bielsko-Biała Sprzedam używany | Cena: 680zł Hifi PLN 680 13% Nov 14, 2025

Kleinanzeigen

Brimar Cossor 6SN7GT VT-231 British Made BVA 62 Tube Röhren Kleinanzeigen €425 11% Dec 11, 2025

Yahoo Auctions

JAN-6SN7GT/VT-231 KEN-RAD - Rod vacuum tube 2 ps Yahoo Auctions Auction bid
¥24,000 Dec 28, 2025

OLX Poland

6SN7 GT Sylvania NOS NIB Wojskowe Para Lampy USA 1960's VT-231 OLX Poland PLN 950 27% Feb 14, 2025

Yahoo Auctions

JAN-6SN7GT/VT-231 KEN- RAD same - Rod vacuum tube 2 ps Yahoo Auctions Auction bid
¥24,000 Dec 28, 2025

OLX Poland

6SN7 GT VT-231 JAN-CHS Sylvania NOS Wojskowe Para Lampy USA 1940's OLX Poland PLN 1,095 Dec 16, 2025

Yahoo Auctions Taiwan

︽NO:6707 美國 SYLVANIA 6SN7 GT 真空管 1支 ( VT-231 ) 黑屏 頂部水銀 方形除氣片 Yahoo Auctions Taiwan NT$800 Dec 13, 2025

Yahoo Auctions Taiwan

︽NO:6120 加拿大 Marconi 6SN7 GT ( VT-231 ) 真空管 1支 紅標 I 字黑屏 方環 Yahoo Auctions Taiwan NT$1,000 Dec 13, 2025

Yahoo Auctions Taiwan

︽NO:6134 美國 TUNG-SOL 6SN7 GT ( VT-231 ) 特殊結構 真空管 1支 I 字黑屏 方環 Yahoo Auctions Taiwan NT$1,500 Dec 13, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:6225 美國 SYLVANIA 6SN7 GT ( VT-231 ) 黑屏 40年代除氣片 1對 Yahoo Auctions Taiwan NT$3,100 Dec 13, 2025

US Audio Mart

MapleTree Audio Line2C tube preamp. *w/ adds&*KenRad VT231's cg & more Tubes US Audio Mart $685 32% Jun 4, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:6118 美國 CBS 6SN7 GT 真空管 1支 ( VT-231 ) I 字黑屏 方環 Yahoo Auctions Taiwan NT$1,000 Dec 13, 2025

Yahoo Auctions Taiwan

︽NO:4928 美國 RCA 頂級 6SN7 GT ( VT-231 ) 真空管 1支 50年代 灰管 方環 濃郁老聲 Yahoo Auctions Taiwan NT$1,600 Dec 13, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:4954 美國 SYLVANIA 6SN7 GT (VT-231) 黑屏 40年代除氣片 已配對 1對 Yahoo Auctions Taiwan NT$3,100 Dec 13, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:6119 美國 CBS 6SN7 GT ( VT-231 ) 真空管 1支 I 字黑屏 方環 Yahoo Auctions Taiwan NT$1,000 Dec 13, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:6730 美國 Admiral 6SN7 GT (VT-231) 黑屏 40年代除氣片 已配對 1對 Yahoo Auctions Taiwan NT$3,100 Dec 13, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:6176 美國 TUNG-SOL 6SN7 GTB ( VT-231 ) 黑屏 D環 已配對 1對 Yahoo Auctions Taiwan NT$3,000 Dec 13, 2025

Yahoo Auctions Taiwan

6SN7 ︽NO:6116 美國 HYTRON 6SN7 GT ( VT-231 ) 真空管 1支 I 字黑屏 方環 Yahoo Auctions Taiwan NT$1,000 Dec 13, 2025

Canuck Audio Mart

6SNTGTB 6SN7GT 6SN7WGT 6SN7 VT231 Vacuum Tubes Sylvania Ken Rad RCA Canuck Audio Mart CA$20 Dec 14, 2025

OldSound

6SN7GT VT-231 RAYTHEON 33S30B 5692 B65 13D2 CV1988 ECC32 QUARTETTO VALVOLE DOPPIO TRIODO PREAMPLIFICATORE 100% OK OldSound €499 0% Sep 1, 2023

OldSound

6SN7GT SICTE S.I.C.T.E. VALVE VT-231 33S30B 5962 B65 13D2 CV1988 DOUBLE TRIODE AUDIO PREAMPLIFIER 100% OldSound €79 Sep 1, 2023

OldSound

VT-231 SYLVANIA 6SN7GT 33S30B 5692 B65 13D2 CV1988 ECC32 VALVE PAIR DOUBLE TRIODE PREAMPLIFIER "RARE" AUDIO NOS/NIB OldSound €419 7% Sep 1, 2023

OldSound

VT-231 KEN-RAD 6SN7GT 33S30B 5692 B65 13D2 CV1988 ECC32 VALVE PAIR DOUBLE TRIODE PREAMPLIFIER "RARE" AUDIO NOS/NIB OldSound €489 24% Sep 1, 2023

OldSound

6SN7GT SICTE S.I.C.T.E. VT-231 33S30B 5962 B65 13D2 CV1988 VALVE PAIR DOUBLE TRIODE AUDIO PREAMPLIFIER 100% OldSound €99 Sep 1, 2023

OldSound

VT-231 KEN-RAD 6SN7GT 33S30B 5692 B65 13D2 CV1988 ECC32 VALVE PAIR DOUBLE TRIODE PREAMPLIFIER "RARE" AUDIO 100% OK OldSound €429 27% Sep 1, 2023

OldSound

6SN7GT SICTE S.I.C.T.E. VT-231 33S30B 5962 B65 13D2 CV1988 VALVE DOUBLE TRIODE AUDIO PREAMPLIFIER NOS/NIB OldSound €159 Sep 1, 2023

OldSound

VT-231 KEN-RAD 6SN7GT 33S30B 5692 B65 13D2 CV1988 ECC32 PAIR OF DOUBLE TRIODE VALVE PREAMPLIFIER "RARE" AUDIO 100% OK OldSound €439 6% Jan 12, 2024

Marktplaats

2 x RAF zendbuis, VT 127. 10E/231 Marktplaats - Nov 22, 2025