Tag Archives: transformer

Dec12024

Johnson Viking II Transmitter Interstage Transformer Inverter Tube Module Replacement Live Demo

Heathkit SB-1000 1KW HF Linear Amplifier With Dahl Transformer Upgrade

This is a Heathkit SB-1000, 1KW amplifier. It is from a non-smoking environment. It is wired for 240vac operation. It has been upgraded with a Peter Dahl transformer. Other upgrades/mods include wiring to reduce filament voltage and the addition of … read more

May 12, 2016 adminheathkitamplifier • dahl • heathkit • linear • sb-1000 • transformer • upgrade