Audio tubes - second-hand & new

Loewe AD1/400
Tubes for power amplifiers

Private

Austria (4553)

1,250.00 €

Yesterday, 09:42

Sehr schönes stark gemessenes Paar AD1 von Loewe Funke W19s mit 57 und 58mA, gut beginnt bei 32mA, ...

Loewe AD1 400
Tubes for power amplifiers

Private

Austria (4553)

850.00 €

Yesterday, 09:40

Ein sehr schönes sehr stark gemessenes Paar AD1/400 von Loewe Funke W19s gemessen mit 55 und 54mA wobei ...

Various / Other 6SN7 NOS
Tubes for preamplifiers

Dealer

Netherlands (8241AK)

125.00 €

18.01.2026, 06:25

6SN7 Tubes offered from our private collection: General Electric 6SN7GTB Side Getter Cleartop. 8,5 ...

Various / Other JJ KT88
Tubes for power amplifiers

Dealer

Netherlands (8241AK)

45.00 €

18.01.2026, 06:11

Nice opportunity. Have been measured with both Amplitrex 1000 and Beck RM1. Measured between 121 mA ...

Various / Other Mullard GZ37/CV378
Tubes for preamplifiers

Dealer

Netherlands (8241AK)

250.00 €

18.01.2026, 06:09

Have been measured with Amplitrex and show near 100% values. Now: 250 euro each.

Various / Other Svetlana KT88
Tubes for power amplifiers

Dealer

Netherlands (8241AK)

56.00 €

18.01.2026, 06:03

Nice opportunity. Have been measured with both Amplitrex 1000 and Beck RM1. Measured between 118 mA ...

Various / Other Svetlana EL34
Tubes for power amplifiers

Dealer

Netherlands (8241AK)

30.00 €

18.01.2026, 06:02

Nice opportunity. Have been measured with both Amplitrex 1000 and Beck RM1. Measured between 104 mA ...

Various / Other 4 pieces Marconi Triode PX4 red green logo and Osram balloon Triode PX25
Tubes for power amplifiers

Private

Italy (98168)

Price on request

17.01.2026, 15:23

PX4 and PX25: Considered to be the best triodes ever made in the UK back those days Production for the ...

RCA gematchtes Paar Röhre 5692 RCA Triple Mica Red Base 6SN7 High End NOS
Tubes for preamplifiers

Private

Germany (53123)

Price on request

16.01.2026, 18:35

Da ich meine Röhrensammlung etwas verkleinern möchte steht hier ein seltenes gematchtes  NOS-Röhren-Paar  ...

Request: Joule Electra joule electra
All

Dealer

Germany (12524)

Price on request

16.01.2026, 06:09

Wir suchen von Firma Joule Electra Div Phono, preamp mit und ohne Phono

ELROG ER 211 pair
Tubes for power amplifiers

Private

Litauen (06245)

800.00 €
Original price: 1,700.00 €

15.01.2026, 18:29

Pair of Elrog ER211 tubes in perfect condition. Private sale, so no warranty, no returns

Various / Other Ray Tubes Select 12AU7 / ECC82
Tubes for preamplifiers

Private

Austria (1150)

110.00 €

15.01.2026, 13:58

Ein neuwertiges Paar ist noch zu haben! 2 tubes are av (das andere ist bereits verkauft) 2 selektierte ...

TAD Technical Audio Devices Laboratories 6L6WGC-STR Redbase TAD Tubes
Tubes for power amplifiers

Private

Austria (1150)

100.00 €
Original price: 160.00 €

15.01.2026, 12:04

Dieses Premium Matched Quartett ist zu Testzwecken wenige Stunden gelaufen. Seither warten sie in der ...

Kondo 300B
Tubes for power amplifiers

Dealer

Germany (32105)

3,000.00 €
Original price: 3,000.00 €

14.01.2026, 06:11

Die Kondo 300B Röhren werden von Takatsuki nach Kondo Wünschen gefertigt. Es kommen Kondos legendäre ...

Takatsuki TA-300B Power Triode Vacuum Tubes NEW 25% OFF (2 sets of 2 available)
Tubes for power amplifiers

Dealer

Netherlands (7711EX)

1,999.00 €
Original price: 2,699.00 €

12.01.2026, 06:23

-Update: one set sold, so only one set left in stock- New with high 25% discount! Two sets of two ...

Psvane Tubes WE300B PSVANE Plus + Version - factory matched Pair
Tubes for power amplifiers

Private

Germany (87452)

750.00 €
Original price: 1,069.00 €

09.01.2026, 11:52

Selektiertes Paar Endröhren 300B von PSVANE in der Spitzenausführung, werksselektiertes Paar. Versand ...

Various / Other NOS
Tubes for preamplifiers

Private

Germany (65232)

111.00 €

08.01.2026, 18:02

Sylvania 6080 mit OV FAA wahrscheinlich RCA, zumindest baugleich, 6AS7 -gut getestet- Preis für das ...

Telefunken for sale: several matched pairs of ECC 83 Medical Grade - low noise tubes with low hours
Audio tubes

Private

Netherlands (1261SW)

340.00 €
Original price: 527.00 €

08.01.2026, 16:58

The offer consists of several matched pairs of Telefunken ECC 83/12AX7 "Medical Grade" tubes with red ...

Various / Other Genalex Gold Lion 12AT7/ECC81 matched pair
Tubes for preamplifiers

Private

Italy (40126)

90.00 €
Original price: 124.00 €

07.01.2026, 23:21

I am selling a MATCHED PAIR of GOLD LION GENALEX 12AT7/ECC81 tubes. Original boxes. Brand new. Bought ...

Various / Other KT66 G.E.C. quintet
Tubes for power amplifiers

Private

Italy (00146)

1,100.00 €
Original price: 1,100.00 €

04.01.2026, 10:44

Selling a rare quintet of vintage KT66 G.E.C. manufactured in UK. The tubes are used and I bought ...

Various / Other 1 Paar 211 gematcht, NOS JAN Made In usa GE indication From General electronic
Tubes for power amplifiers

Dealer

Germany (14612)

1,280.00 €

03.01.2026, 09:24

1 PAAR NOS JAN 211 Röhren, gematcht, The 211 tubes are NOS JAN Made In USA GE indication From General ...

Various / Other 4 Endstufen-Röhren Leistungsröhren FU-7 933J
Tubes for power amplifiers

Private

Germany (56357)

50.00 €

31.12.2025, 08:53

4 Endstufen-Röhren Leistungsröhren FU-7 933J, 7 Pin, gebraucht, Top-Zustand, s. Fotos, aus Sammlungsauflösung Abholung ...

Various / Other Tungsol 6550
Tubes for power amplifiers

Dealer

Netherlands (8241AK)

50.00 €

30.12.2025, 06:16

Nice opportunity ! Tungsol 6550. Have been measured with both Amplitrex 1000 and Beck RM1. Measured ...

Request: Stewart Filmscreen StudioTek 100 WallScreen Rahmenleinwand
All

Private

Germany (54298)

max. 2,000.00 €

26.12.2025, 11:41

Ich suche eine Stewart StudioTek 100 WallScreen Rahmenleinwand im 16:9 Format mit mindestens 2,50m Breite ...

Philips Philips GZ34- Metallbasis ! (Rectifier Tube)
Audio tubes

Private

Austria (9020)

700.00 €

25.12.2025, 17:00

Philips GZ34, Metallbasis Holy Grail-Tube ! Wurde als NOS in den USA gekauft und ist nur zum Test ...