Download the AudioXpress VDV-TRANS-PP80 article here.
Small corrections on the Vanderveen-Trans-PP80 are available.
The new Vanderveen-Trans-PP80 article is available now.
The manual of the Trans-SE10 valve-amp is updated. Download the 1.5.4 Vs.2023 version.
The MC10 is sold-out and taken out of production. The MC10 service documentation stays available in the section “Research & Development".
VDV-800-5 Impedance-Matching-Transformer for OTL-valve-amplifiers.
A new study from Menno about a small HB-amplifier and “Creation of Spacy Guitar Soundscapes” (use google translate to read it).
My ETF-2021 lecture about Trans versus Global negative feedback is available now
Two new mains power transformers (MAINS-B en MAINS-D) are available now.
The results of our TS2019 project are published now with many extra details and background.
New research results about guitar effect pedals.
The Trans-SE10 amplifier is evaluated in the high-end press by Srajan Ebaen (6moon).
Menno’s article about the Trans-SE10-Secrets can be downloaded here.
The first modification for the Vanderveen-Trans-SE10-kit is available.
The Construction Manual of the Vanderveen-Trans-SE10 Vanderveen-Trans-SE10 is updated. See for more information …
The Vanderveen-Trans-SE10 kit is ready and can be ordered. See for more information …
We made a new miniature electronic choke with 200 mA current capability: the MEC-200
The December 2019 AudioXpress article about the Vanderveen-Trans-SE18 amplifier is available now.
The transformers VDV-POW80-t and VDV-GIT80-t for “The Project” and the “PR20HE amplifier” are totally renewed with largely improved specifications.
In the December issue of the American magazine “AudioXpress” (www.audioxpress.com), the final result of the TubeSociety Project-2018 is published: the “Trans-SE18 Single-Ended amplifier”. Parts of its schematics can be found on this website > Products > valve electronics > kits.
Two new transformers are added, special designed for guitar amplifiers. The VDV-4050-Guitar is for 50 Watt push-pull amps, while the VDV-25100-Guitar can handle for 100 Watts or more. See Products > Transformers > Other.
The dates for TubeSociety lessons in 2020 are scheduled …….
The TubeSociety projects from 2006 to 2011 are placed again on this website.
The report of the TubeSociety-2018-Project is available on this site, mainly in the Dutch language. Hopefully you can get an impression about the great things that we are doing at TubeSociety.
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).