Roger's Williamson Amplifiers
Designed by Roger Knopp, M.Sc.EE
knopp.electronics@iname.com
phone/fax: +46 31 252345











KEW88-91D, Roger's Williamson Amplifier Mk IV











KEW807-91C, Roger's Williamson Amplifier Mk III











KEW807-91B, My First Tube Amplifier

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Wireless World 1947: "The Original Williamson Circuit Diagram"
KEW88-91D, Roger's Williamson Amplifier Mk IV
KEW807-91C, Roger's Williamson Amplifier Mk III
KEW807-91B, My First Tube Amplifier