This Blog is about revising/upgrading the vintage Quad 33 to 909 amplifiers and the Revox taperecorders.
Audio electronics and High End Hifi are also absolutely "on-topic" here.
All pictures on this site (except the schematics) are Copyright Dada Electronics. You can use them after a written agreement (via e-mail) with the author.
For Contact-information see www.dadaelectronics.eu
Saturday, January 20, 2007
Bernd Ludwig's complete latest 405 update text!
Dada Electronics is proud to present: the latest version of Bernd's Quad 405 modification text.
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