Tube amps w/ Geoff Farina: Troubleshooting Tube Guitar Amps | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.
Carl Martin Ampster Tube Guitar Amp – Thomann UK
The Guitar Amp Handbook: Understanding Tube Amplifiers and Getting Great Sounds, Updated Edition : Dave Hunter: Amazon.co.uk: Books
History Of Amplifier Tubes: How To Retube And Bias Your Amp
Best Guitar Amplifier Valve? Here's The Answer. | ampvalves.co.uk
Amp Stuff
Everything You Ever Wanted to Know About Output Tubes
The Guitar AMP Handbook: Understanding Amplifiers and Getting Great Sounds: Understanding Tube Amplifiers and Getting Great Sounds : Dave Hunter: Amazon.co.uk: Books
2 x JJ EL84 ( 6BQ5 ) Matched Pair Guitar Amp Vacuum Power Tube /Valve – ToneVillage