Vacuum tubes, called valves in England, were the standard in home-audio systems until the advent of the transistor in the 1950s. Tubes can be used to increase a device’s amplification, which translates into more volume in a high-fidelity amplifier. In particular, tube amplifiers are renowned for their warmer sound when compared to amplifiers with solid-state circuitry. Two of the best-known makers or tube amplifiers are Heathkit, which sold amplifier kits to home-audio hobbyists in the 1950s and ’60s, and McIntosh, whose amplifiers, pre-amps, and tuners were considered the gold standard by many audiophiles during the same decades.

Best of the Web (“Hall of Fame”)

The Vintage Knob

The Vintage Knob

The Vintage Knob is an extensive resource on all types of audio electronics organized by manufacturer, from Aiwa to… [read review or visit site]

Other Great Reference Sites

Most watched eBay auctions    

Hh Scott 272 Vintage Audiophile Integrated Tube Stereo Amplifier El34 Amp Nice!!Mcintosh Mx110 Vintage Stereo Tube Pre-amplifier / Tuner / Mx110z For Mc30 Mc275Bell Sound Vintage Hifi Mono Tube Amp 2200 Amplifier 6l6 Parts/repair/restoratioH.h. Scott Stereomaster Type 299 Vintage Stereo, Vaccume Tube Amplifier RecieverVintage Eico St 70 St70 70 Watt Intergrated Stereo Amplifier Tube Pair 30s Vintage Spring Top 2a3 Tube Amplifier Rca Brook Western Electric EraPair 30s Vintage 45 245 Triode Tube Audio Amplifier Western Electric Rca Era AmpMatched Pair Of Ampex El34 Mono Tube Amplifiers, Triad Transformers Stereo Amp Heathkit W5m Mono Tube Power Amplifier, Vintage, No ReserveBell 2200 Tube Amplifier Vintage Ampex Concerto Mono Tube Amp 6973 AmplifierVintage Fisher 660a 7591 Tube Amplifier Console Pull Comes With All Tubes Look!!Unique Set Pioneer Stereo Tube Amplifier Sa-400 + Tube Stereo Tuner Tx-400Cx 350 Rca Pair Tube Amplifier 50 Audio Stereo Radio Single Ended CunninghamVintage Magnavox 6bq5 Stereo Tube AmplifierSherwood S1000 Tube Amplifier 6l6gb (6l6 Amp) 20 WattsMasco  me-27 Vintage Mono Tube Amplifier Me37 Harp Amp Parts/repair/restoration Allied Tube Stereo Receiver/amplifier (6bm8 Amp,6e5,etc)Marantz 8b Tube Power AmplifierHeathkit Aa-121 El34/6ca7 Pp 80-watt Stereo Tube Power Amp Amplifier Works! ♫ H.h. Scott Lk-48 Tube Integrated Amplifier Amp W/ Case - Tested & Working ♫Fisher X-202-b Tube Integrated Amplifier Vintage Bogen Model Db230a Tube Stereo AmplifierTube Amplifier Pa (public Address Amp) (6n6,6c8,6f5,5yg)30-a Vintage Fisher Vacuum Tube Mono Amplifier 6bq5 El84 7189 Power Amp 30a H.h. Scott Type 222c Stereomaster Tube Integrated Amplifier - Parts Or Repair Vintage Magnavox Tube Amplifier 8601-20 T-7Ux 350 Rca Tube Amplifier 50 Audio Stereo Radio Single Ended Horn Zenith Philco Beautiful Sherwood S-5000ii Tube Amplifier Amp Stereo Vintage50s Vintage Allen Organ Pp 6l6gc Tube Audio Amplifier Hi-fi Mcintosh Marantz EraEr 250 Raytheon Eveready Tube Amplifier 50 Audio Stereo Radio Single Ended Ham Dynaco St70 Dynakit Vacuum Tube Stereo Power Amplifier OriginalGrundig Nf2 Tube Amplifier El84 Ecc83Vintage High Quality Philips Integrated Full Tube Stereo Amplifier Ag9016Luxman Mb 3045 Monoblock Tube Amplifiers Heathkit Tube 14 Watt Hi Fi Amplifier (el84 Ouputs)Heathkit W-5m Tube Mono Power Amplifier + Free PreampWestern Electric Ks-16608-l1 Mono Tube Amplifier- Excellent !!! No Reserve!!!Vintage Magnavox Console Stereo Tube Power Amplifier 9303-00 4-6bq5 2-6eu7Knight Kb-85 Stereo 60 Watt Tube AmplifierTruetest Stereo/5 Stereo Tube AmplifierBogen Mxm Mono Tube Preamplifier Amplifier Mixer Microphone Preamp Nice Vintage Bell 3725 Tube Amplifier Amp Pa Mic Guitar 6l6Dynakit St70 Stereo, Tube AmplifierAltec Lansing 344a 344-a Integrated Mono Tube Amplifier Amp For Parts Or RepairFisher 100 Mono Block Vintage El37 Tube Audio Power Amplifier Similar To 80azNice Vintage Bell 3750 Tube Amplifier Amp Pa Mic Guitar 6l6Heathkit A-7 Tube Integrated Amplifier For Parts Or RestorationVintage Heathkit Mono Tube Amplifier Model A-9Hammond Ao-44 Tube Reverb AmplifierVintage John Gable Tube Jukebox Phonogrpah Amplifier Wurlitzer Western Electric Heathkit Aa-100 Tube Amplifier Good Working ConditionSingle Sylvania Type 10y Vt-25 Triode Tube For Power Amplifiers - Test Very GoodBaldwin 64h Tube Stereo 3 Channel 6bq5 Amplifier Sansui Hw-731 Tube Amplifier (mono) Rare!!!!Single Tung Sol 6550 Tube For Power Amplifiers - Tests Very GoodVintage Conn Organ 6l6 Tube Amplifier ~ Working ~ Free ShippingVintage Mono Tube Amplifier Amp 4 Tubes 2 X 6l6 12ax7 5u4 Chassis Fused Gain ConTube Amplifier, Old Sears Consol, Type Magnavox 94-03 Tube Amplifier From Console