Career Professionals

Transformers for Tube Amplifiers: How to Design, Construct & Use Power, Output & Interstage Transformers and Chokes in Audiophile and Guitar Tube Ampl, Paperback/Igor S. Popovich

Tube Guitar Amplifiers Volume 2: How to Repair, Modify & Build Guitar Amps, Paperback/Igor S. Popovich

Audio Tests & Measurements: How to Test Electronic Components, Audiophile & Guitar Amplifiers and Loudspeakers Using Modern and Vintage Test Instr, Paperback/Igor S. Popovich

Audiophile Vacuum Tube Amplifiers - Design, Construction, Testing, Repairing & Upgrading, Volume 2, Paperback/Igor S. Popovich