tube audio electronics

40 years of repair, design & build of analogue audio

Repairs to guitar amps such as Marshall Orange Laney Peavey

Restoration of guitar amplifiers Fender Marshall Selmer Vox Sound City and including vintage hifi Leak Quad McIntosh and solid state amps.

Custom design ‘boutique amps’ and valve outboard - EQ spring reverb and distortion units for studio use.

Innovation Reliability Quality

studio outboard

valve hifi

all hand wired circuitry

amplifier repair & restoration

hand built guitar amps

custom built cabinets

Theo Argiriadis Bsc Hons please contact for your repair or design requirement

Argiriadis Analogue Electronics on Instagram

AAE #EQ #Reverb #unit #workinprogress #preamp #lowpass #reverbnation #amp #valve #music #musicians #recordingstudio #studiogear #stereo #overdrive #harmonics #circuitporn #frequencysweep #higain

Guitar amp speaker cab nearly finished for a customer. Birch ply vaneered with Maple & Sapele wood #guitarampcabs #speakercabs #speakercabinets #ampcabinets #guitarampcabinets

Nearly finished - bespoke #hifi #preamp and #headphones amp for a regular customer. For more info on bespoke hifi builds, do get in touch. Link in bio. #hifiaudio #hifiporn #amplifier #audioengineer #hifiaudio #valve #valveamp #valveamplifier #tubeamp #tubeamps #vintagehifi #vinyl #vinylcommunity #headphoneamp #tubeamplifier #highendaudio #headphones🎧

If you’re a #London #giggingmusician now’s a great time to take advantage of the downtime to do maintenance on your amp. See link in bio and do get in touch. #fender #fenderamps #fenderamp #fenderdeluxe #fendertweed #vox #voxamp #voxamps #ampeg #ampegamps #marshallamps #valveamp #valve #tubeamp

Currently working on bespoke #hifi #preamp and #headphones amp for a regular customer - link in bio #hifiaudio #hifiporn #amplifier #audioengineer #hifiaudio #valve #valveamp #valveamplifier #tubeamp #tubeamps #tubeamplifier #highendaudio #headphones🎧

Fender Tweed Vibrolux in the shop for repair and restoration. Need a repair or restoration of your vintage amp? See the link in my bio to get in touch. #fender #fenderamp #fendertweed #fendertweedvibrolux #guitar #guitarsofinstagram #tweed #jensen #leofender #guitaramp #vintage #vintagegear #valveamp #restoration #valveamps #repairshop

Bespoke #300B #hifi #amp - link in bio #hifiaudio #hifiporn #amplifier #audioengineer #hifiaudio #valve #valveamp #valveamplifier #tubeamp #tubeamps #tubeamplifier #highendaudio

#300b #hifi #amplifier #benchtest #workinprogress #valveamp #powertransformer #outputtransformer #transformer #vinyl #ecc99 #6sn7 #highendaudio #audio #hifiporn #tubeamp #tubeamplifier #tubeamprepair #tubeamplifiers

#300b #hifi #amplifier #workinprogress #valveamp #powertransformer #outputtransformer #transformer #vinyl #ecc99 #6sn7 #highendaudio #audio #hifiporn #tubeamp #tubeamplifier #tubeamprepair #tubeamplifiers

Demonstrating the relationship between mild harmonic distortion and colouration in signals made out of different - but harmonically related - frequencies (cords). I set the keyboard in sine wave mode. First you hear a sound clip coming straight from the keyboard (dry) and then it goes through the unit (wet). I stop between the 'dry' and 'wet' sounds to make the changeover clear, while I'm pressing an external by-pass switch. In this video, the interstage operates in #Pentode mode. First, I'm playing a single note to illustrate that if the harmonic colouration is low, you can hardly hear the difference in single notes. However, as soon as you play more notes simultaneously (a cord) even if the harmonic distortion is very low, inter-modulation products kick in and the sound changes a great deal. You can see the single note waveform in both 'dry' and 'wet' form in the #oscilloscope where the 'wet' single note waveform is rich in second harmonic distortion. #workinprogress #AC #current #testing #EQ #distortion #lowpass #reverbnation #amp #tonemob #music #musicians #recordingstudio #ultralinear #pentode #studiogear #stereo #overdrive #harmonics #triode #cascode #cathode #reverb #amplification #sound #waveform #keyboard #frequencies