Isolation Transformer Upgrade for Old Guitar Amps : 11 Steps (with Pictures) - Instructables
TRANSFORMERS FOR TUBE AMPLIFIE: How to Design, Construct & Use Power, Output & Interstage Transformers and Chokes in Audiophile and Guitar Tube Amplifiers : Popovich, Igor S: Amazon.de: Books
Output Transformers - The Heart of a Tube Amp
How To Check A Guitar Amp Power Transformer – FuelRocks
Transformer Placement on Tube Amp - Techtalk Speaker Building, Audio, Video Discussion Forum
Transformer - Hammond, Guitar Amplifier, replacement for Fender, 120 V | Antique Electronic Supply