Filters
Price
Pricing
Shipping
Condition
Store
Brand
Compatible Product Type
Compatible Manufacturer
Care Type
Colour
Application
Pet Type
Clear all filters

Save big on Sale Bargains - Up to 82% off on 300B Tubes

TODAY'S BEST DEALS
TOP DEAL
300B tubes Psvane New HIFI Series 1PC ceramic base gold pins
300B tubes Psvane New HIFI Series 1PC ceramic base gold pins
eBay
£53.99
SEE DETAILS
Popular
300B tubes Psvane New HIFI Series 1PC ceramic base gold pins
300B tubes Psvane New HIFI Series 1PC ceramic base gold pins
eBay
£53.99
SEE DETAILS
Featured
Shuguang Treasure 300B-Z Vacuum Tubes Matched Pair New
Shuguang Treasure 300B-Z Vacuum Tubes Matched Pair New
eBay
£249.00
SEE DETAILS
Featured
Matched Pair PSVANE Vacuum Tubes 300B HiFi-Series
Matched Pair PSVANE Vacuum Tubes 300B HiFi-Series
eBay
£117.70
SEE DETAILS
Popular
Matched Pair (2 tubes) Electro Harmonix 300B tubes,Gold Grid,NEW
Matched Pair (2 tubes) Electro Harmonix 300B tubes,Gold Grid,NEW
eBay
£210.57
SEE DETAILS
Popular
KR AUDIO KR-300B 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
KR AUDIO KR-300B 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
eBay
£709.00
SEE DETAILS
Featured
1 x  Matched Pair  300B New Valve Tubes Gold Class Made By Shuguang China
1 x Matched Pair 300B New Valve Tubes Gold Class Made By Shuguang China
eBay
£200.00
SEE DETAILS
4 Pin UX4 Ceramic Tubes Socket for 2A3, 300B, etc.  With Gold plated contacts
4 Pin UX4 Ceramic Tubes Socket for 2A3, 300B, etc. With Gold plated contacts
£5.00
eBay
Info
4 Pin UX4 Ceramic Tubes Socket for 2A3, 300B, etc.  With plated Brass contacts
4 Pin UX4 Ceramic Tubes Socket for 2A3, 300B, etc. With plated Brass contacts
£4.25
eBay
Info
SOCKET43SG UX4 TO FIT 2A3, 300B, 811A VALVE TUBES BULK OFFER 20 PIECES
SOCKET43SG UX4 TO FIT 2A3, 300B, 811A VALVE TUBES BULK OFFER 20 PIECES
£60.00
eBay
Info
A PAIR OF 300B 300BS Hi-Fi AMPLIFIER VACUUM VALVE TUBES
A PAIR OF 300B 300BS Hi-Fi AMPLIFIER VACUUM VALVE TUBES
£100.00
eBay
Info
Matched Pairs Svetlana Electron Devices (SED) 300B tubes,NOS from 1998,Brand New
Matched Pairs Svetlana Electron Devices (SED) 300B tubes,NOS from 1998,Brand New
£599.99
eBay
Info
Platium Matched Quad Genalex Gold Lion PX300B 300B tubes, Brand New
Platium Matched Quad Genalex Gold Lion PX300B 300B tubes, Brand New
£500.10
eBay
Info
Matched Pair Classic Grade Psvane 300B-T Mark II Vacuum Electronic Tube Tubes
Matched Pair Classic Grade Psvane 300B-T Mark II Vacuum Electronic Tube Tubes
£292.00
eBay
Info
New GENALEX Gold Lion PX300B Platinum Matched Pair Tubes Valves 300B FREE SHIP
New GENALEX Gold Lion PX300B Platinum Matched Pair Tubes Valves 300B FREE SHIP
£199.00
eBay
Info
4 Pin UX4 Chassis Mount Ceramic Valve Tubes Socket for 2A3, 300B, etc.
4 Pin UX4 Chassis Mount Ceramic Valve Tubes Socket for 2A3, 300B, etc.
£2.75
eBay
Info
15VA 2 x 2.5V Filament / Heater transformer for 45 46 2A3 300B valves tubes
15VA 2 x 2.5V Filament / Heater transformer for 45 46 2A3 300B valves tubes
£17.00
eBay
Info
300B Valve Tube Stereo Integrated Amplifier HiFi Hand wired / point-to-point DIY
300B Valve Tube Stereo Integrated Amplifier HiFi Hand wired / point-to-point DIY
£789.00
eBay
Info
300B BILLINGTON GOLD CHINESE 2PIECES MATCHED PAIR VALVE TUBE
300B BILLINGTON GOLD CHINESE 2PIECES MATCHED PAIR VALVE TUBE
£202.00
eBay
Info
300B BILLINGTON GOLD SPECIAL EDITION CHINESE 2PIECES MATCHED PAIR VALVE TUBE
300B BILLINGTON GOLD SPECIAL EDITION CHINESE 2PIECES MATCHED PAIR VALVE TUBE
£220.00
eBay
Info
300B SingleEnded Monoblock Tube Amplifier Demo Unit Tubeguru Röhrenverstarker
300B SingleEnded Monoblock Tube Amplifier Demo Unit Tubeguru Röhrenverstarker
£4900.00
eBay
Info
Bowei - 300B Hi-End Class A Tube Integrated Amplifier
Bowei - 300B Hi-End Class A Tube Integrated Amplifier
£503.50
eBay
Info
PSVANE 300B 2pcs HIFI Series Vacuum Valve Tube Matched Pair For Tube Amplifier K
PSVANE 300B 2pcs HIFI Series Vacuum Valve Tube Matched Pair For Tube Amplifier K
£104.00
eBay
Info
6N8P+300B Directly heated triode HIFI Tube amp amplifier DIY KIT 110v 220v 7W
6N8P+300B Directly heated triode HIFI Tube amp amplifier DIY KIT 110v 220v 7W
£239.00
eBay
Info
6SN7-300B single-ended tube amp amplifier DIY Kit large PCB suite HIFI design
6SN7-300B single-ended tube amp amplifier DIY Kit large PCB suite HIFI design
£55.00
eBay
Info
Hi-End 300B Push 845 Valve Tube Stereo Amplifier Class A HiFi Integrated Amp 60W
Hi-End 300B Push 845 Valve Tube Stereo Amplifier Class A HiFi Integrated Amp 60W
£1499.00
eBay
Info
Douk Audio 300B+6F8G-Q Valve Tube Amplifier Class A Single-ended HiFi Stereo Amp
Douk Audio 300B+6F8G-Q Valve Tube Amplifier Class A Single-ended HiFi Stereo Amp
£624.00
eBay
Info
Golden Dragon 300B M valve, tube. Cost £165 new. 300BM
Golden Dragon 300B M valve, tube. Cost £165 new. 300BM
£89.00
eBay
Info
Art Audio 300b Diavolo Monoblocks & Conductor Preamp & Vinyl 1 Tube Phono Stage✨
Art Audio 300b Diavolo Monoblocks & Conductor Preamp & Vinyl 1 Tube Phono Stage✨
£7250.00
eBay
Info
YAQIN MS-300C 300B Vacuum Valve Tube Power Amp Integrated Amplifier 110-240v U
YAQIN MS-300C 300B Vacuum Valve Tube Power Amp Integrated Amplifier 110-240v U
£768.00
eBay
Info
Brown cardboard postal tubes, 63.5x483mm, pack of 25
Brown cardboard postal tubes, 63.5x483mm, pack of 25
£0.55
Rajapack
Info
Brown cardboard postal tubes, 76.2x686mm, pack of 20
Brown cardboard postal tubes, 76.2x686mm, pack of 20
£0.87
Rajapack
Info
Brown cardboard postal tubes, 50.81x686mm, pack of 50
Brown cardboard postal tubes, 50.81x686mm, pack of 50
£0.50
Rajapack
Info
2x New Tested 300B-98 300B ShuGuang Vacuum Tube For Tube Amplifier
2x New Tested 300B-98 300B ShuGuang Vacuum Tube For Tube Amplifier
£102.99
eBay
Info
Single Ended Triode 300B Vacuum Tube Valve Amplifier | Class A | FREE UK Del
Single Ended Triode 300B Vacuum Tube Valve Amplifier | Class A | FREE UK Del
£1125.00
eBay
Info
LM-210IA Line Magnetic 300B Tube Integrated Amplifier Class A Single Ended
LM-210IA Line Magnetic 300B Tube Integrated Amplifier Class A Single Ended
£1481.05
eBay
Info
Raphaelite CS30 Hi-End 300B Single-ended Audio HiFi amp Tube amplifier DIY KIT
Raphaelite CS30 Hi-End 300B Single-ended Audio HiFi amp Tube amplifier DIY KIT
£699.00
eBay
Info
2 x New Tested 300B-L 300B UK Design Psvane Vacuum Tube For Amp,Matched Pair
2 x New Tested 300B-L 300B UK Design Psvane Vacuum Tube For Amp,Matched Pair
£227.00
eBay
Info
2 x New Tested HiFi 300B Psvane Vacuum Tube For Tube Amplifier,Matched Pair
2 x New Tested HiFi 300B Psvane Vacuum Tube For Tube Amplifier,Matched Pair
£103.80
eBay
Info
1 x New Tested HiFi 300B Psvane Vacuum Tube For Tube Amplifier
1 x New Tested HiFi 300B Psvane Vacuum Tube For Tube Amplifier
£55.80
eBay
Info
2 x New Tested HiFi 300B-N 300B Psvane Vacuum Tube For Tube Amp,Matched Pair
2 x New Tested HiFi 300B-N 300B Psvane Vacuum Tube For Tube Amp,Matched Pair
£205.00
eBay
Info
YAQIN Valve Amplifier 12AX7 12AU7 300B Tube Vavle Vacuum Stereo Headphone AMP
YAQIN Valve Amplifier 12AX7 12AU7 300B Tube Vavle Vacuum Stereo Headphone AMP
£1200.00
eBay
Info
Easier HIFI DIY PCB KIT 300B stereo Tube Power amplifier based Audio Kit1 300B
Easier HIFI DIY PCB KIT 300B stereo Tube Power amplifier based Audio Kit1 300B
£68.32
eBay
Info
One Single Svetlana Electron Devices (SED) 300B tube, NOS from 1997, Brand New
One Single Svetlana Electron Devices (SED) 300B tube, NOS from 1997, Brand New
£205.99
eBay
Info
520B-V3 EML 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
520B-V3 EML 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
£939.00
eBay
Info
Western Electric with EARLY ENGRAVED BASE 300B Tube AMPLITREX TESTED
Western Electric with EARLY ENGRAVED BASE 300B Tube AMPLITREX TESTED
£5998.80
eBay
Info
KR AUDIO PX-25 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
KR AUDIO PX-25 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
£739.00
eBay
Info
HIFI Quality DIY KIT unsolder for 6SN7 300B tube amplifier class A single-ended
HIFI Quality DIY KIT unsolder for 6SN7 300B tube amplifier class A single-ended
£53.57
eBay
Info
KR AUDIO KR-45 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
KR AUDIO KR-45 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
£699.00
eBay
Info
KR AUDIO KR 211 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
KR AUDIO KR 211 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
£929.00
eBay
Info
KR AUDIO PX-4 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
KR AUDIO PX-4 2 NEW VACUUM TUBES (MATCHED PAIR) BEST300B.COM
£709.00
eBay
Info
B4 EDISWAN VINTAGE BRITISH VALVE TUBE SOCKETS (300B PX25 ETC)
B4 EDISWAN VINTAGE BRITISH VALVE TUBE SOCKETS (300B PX25 ETC)
£5.50
eBay
Info
Line magnetic LM-210IA Pure Class A with 300B tube, amplifier.
Line magnetic LM-210IA Pure Class A with 300B tube, amplifier.
£2400.00
eBay
Info
Tube Amps Cathode Filament Balance Protect Board Eliminate AC Noise for 300B 2A3
Tube Amps Cathode Filament Balance Protect Board Eliminate AC Noise for 300B 2A3
£11.03
eBay
Info
Toroidal tube amplifier transformer 230 160W 0-175-220-260/0-20-60/6.2 EL34 300B
Toroidal tube amplifier transformer 230 160W 0-175-220-260/0-20-6 0/6.2 EL34 300B
£39.99
eBay
Info
Matchecd Pair PSVANE WE300B Tube Western Electric 1:1 Replica Tested and New
Matchecd Pair PSVANE WE300B Tube Western Electric 1:1 Replica Tested and New
£569.99
eBay
Info
Matchecd Pair PSVANE WE300B Tube Western Electric 1:1 Replica Tested and New
Matchecd Pair PSVANE WE300B Tube Western Electric 1:1 Replica Tested and New
£499.99
eBay
Info