Tube amplifier output transformers
Moving Coil step-up transformers
Input and parafeed line output
Mains transformers for tube amplifiers
A lot of Lundahl's transformers are available with Amorphous cores, nanocrystalline cores and silver wire.
Please inquire if the model you are looking at is available with the above options.
Various PCB's for a range of Lundahl Transformers to make wiring to them easier!