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New research by Arjen van den Hoek about Ig2 compensation in the UL40-S2.
The Website is updated, major mistakes are removed. Warn me if you find any faults and I will deal with them.
TubeSociety lesson dates have changed because of the 2019 AES-convention in Dublin.
The report of the TubeSociety 2017-project is available.
New research of Menno about the influence of amplifiers damping factor.
De TubeSociety les-data voor de eerste helft van 2018 zijn nu bekend.
UL40-S2 tested with modern tubes..
The results of the TS-2016-project (design of 2A3/300B SE-amp) are available now.
A new Trans-PP-amp from Eric Rabeuf (Fr).
Video Masterclasses of Menno in NL, DL....