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
- Name: Stefaan
- Location: Antwerpen, Belgium
- Can you do a revision of my 405 FAQ's
- Velleman K4700 Schematics
- Upgrading the 33 power-supply voltage
- Strange noises in a 306.
- What people say about their 405 revision.
- Quad Antropology: Who are those Quad fanatics?
- Quad Revision Live: Walters' Quads revision
- Quadrevision Live: Peter's 303 Explosion
- Quadrevision Live: The Quad/Rogers 405 studio moni...
- Quad 405 Replacement Transistors