Bernard d’Uur’s little lab; doctor is in!

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A blog about vintage amps, pedals and their working. For over 20 years I’ve been dissecting amps, pedals and guitars to see what makes them tick! And I love a good mystery! So dive together with me in the information I can dig up from various places (both digital and analog) to tell you more on the units I work on. My main addictions are Fuzz pedals, Chorus pedals and 50’s amps. And the rarer, the better

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Articles of interest

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  • Yamaha – OC-01 octaver. Now with some extra polarity

    Yamaha – OC-01 octaver. Now with some extra polarity

    And yet again, something fun! This Yamaha Octaver is something different and yet, sound really close to the known octavers in the market. I was triggered by the ‘Polarity’ switch. What should that be…

  • Höfner – Model 175 Tele

    Höfner – Model 175 Tele

    Sometimes I get a guitar in for some TLC. This Höfner 175 is one of them.  This early 1970’s Höfner model 175 Tele (not to be confused with the Höfner model 175 that was…

  • ZVEX – Fuzz probe

    ZVEX – Fuzz probe

    I got this pedal in for some TLC; the owner also needed an LED to see if the pedal is on. In the sonic mayhem of some bands the extra attention to what is…

  • Voss Amplifier – 45W / TR; fun from Western Germany

    Voss Amplifier – 45W / TR; fun from Western Germany

    I LOVE vintage amps! And I LOVE stuff that is unknown or rare. So when this German Voss Amplifier came along, I wanted to check it out! And I can’t really find anything on…

  • Dynacord Jazz; simplicity in it’s finest

    Dynacord Jazz; simplicity in it’s finest

    I got this great treat in for some TLC. A 1963 Dynacord Jazz.  Dynacord started as Werner Pilternagel started in 1945 a radio repair shop in Pilsting, Germany. One year later he would produce…

  • Yamaha – YTA-15; a killer budget amp

    Yamaha – YTA-15; a killer budget amp

    I just adore these 70’s amps! It was a time that a lot of manufacturers produced amps that should mimic tube amps but, at the same time, were sounding completely different.  Yamaha did too.…

  • Z.CAT – Cat Fuzz; Russian NPN Germanium transistors!!

    Z.CAT – Cat Fuzz; Russian NPN Germanium transistors!!

    I LOVE fuzz! And sometimes I find these weird fuzz pedals I need to try out. Z.CAT is a company that is located in Riga, Latvia. It is a small company run by two…

  • Maestro – USS-1: the Universal Synth System

    Maestro – USS-1: the Universal Synth System

    Sometimes I got asked to do something special. This Maestro USS-1 (Universal Synthesizer System) is one special case. The USS was introduced by Maestro in the 70’s. Maestro was at that time a known…

  • Voodoo Labs – Sparkle Drive V1. The first Boutique pedal?

    Voodoo Labs – Sparkle Drive V1. The first Boutique pedal?

    Sometimes a small forgotten treasure comes along! The Voodoo Labs Sparkle Drive is one of these. Voodoo Lab produces pedals and power supplies since 1986. The company was founded by Josh Fiden in the…