Circa 1966 Fender Bassman

Mullard 3-3 audio power amplifier in wooden enclosure.

Oh's Phono Amplifier, a Marantz 7 style phono stage.

Amplifiers, The Club at Stage AE, Pittsburgh, PA (2.21.12)

mp3 player hooked up to old Radio Shack megaphone on lowrider bike

The technique is fast forward. Vacuum tubes (still going), Frequency Modulation, Digital Audio, 2 channel hi-fidelety and 5-channel surround ... I refuse to forget the 70's and 80's, good turntables and amplifiers. For this reason I have taken good care of several of them.

Per A. Høyer/coltrain2011

vacuum tube amplifier with 300B triodes

diy audio gear on electronics market in Lima, Peru

This Leak amplifier is one of two that makes up the matched stereo pre-amp.

Each unit weighs several kilograms thanks to their solid iron base.

Amplifier.

10th May 2013.

Salamandra 2,

Hospitalet de Llobregat.

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Detalhe da placa

One of my amps for listening to music.

This amp uses the rare Sansui H30-6 output transformer for ten watts of vintage triode power.

Dad has been working on this amplifier made with electronic tube, which give a lot of warm sound as well as heat.

Mini Sonya is a company I made of paper clay for myself.

Spring Festival, 2007.

L'ampli est maintenant monté, les lampes installées, les câbles branchés. On peut l'allumer et écouter ce son fantastique.

The McIntosh amplifier is ready. Vacuum installed, wires connected. The sound is fabulous.

Brand new edition of the famous MC-275 amplifier. First reedition.

6AH4GT DIfferential Push-Pull Amplifier

Trying out my new lens (Auto-Takumar 55mm 1.8), I shoot this amplifier at a friends house.

Still building! More pics at m0ukd.com/Homebrew_572B_HF_Linear_Amplifier/Construction_...

Placa montada no dissipador

My Monobox amplifier circuit, based on Ross Hershberger's project:

makeprojects.com/Project/MonoBox+Powered+Speaker/2396/1

More info on my build:

www.lungstruck.com/electronics/monobox-ammo-can-amp/