[Amps] how to wind an HF broadband 10:1 transformer

[Peter Voelpel]

I did that when I got my copy of V.O.Stokes book many years ago, where I
found his wideband transformer concept.
Using the largest ferrit toroids I could get, they were similar to Amidon
#61, I sandwiched them between 5mm thick aluminum plates 20x10cm for
cooling, used 2x12 toroids and wound a 50:600 transformer with 3mm teflon
covered wire to feed my terminated V-Beam from 160-10m. 
That worked perfectly well with all the power my modified L4B (3.5KV) could
deliver.

73
Peter

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf Of jeremy-ca

However if you can show 1.8 - 30 MHz performance statistics at the 1500W 
level they would go a long way to
put a sense of engineering reality on the subject.