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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  • GLX – DS-100 Distortion; a simple MT-2 (also Boston / Beta Aivin, etc)

    GLX – DS-100 Distortion; a simple MT-2 (also Boston / Beta Aivin, etc)

    Sometimes you get some pedals you didn’t ask for. This GLX is one of these pedals that I got in a package deal with other pedals. I was intrigued: it looks like a Boss…

  • Gibson – GA-30 amp

    Gibson – GA-30 amp

    I love old amps! And this amp is pretty old!  Gibson, you know, that brand that produces a lot of great guitars and basses, also produced amps. In the 1940’s they produced beautiful amps…

  • MXR – M-120 Envelope filter

    MXR – M-120 Envelope filter

    I recently got this unit in for some TLC.  As a bass player I adore envelope filters. On my own pedalboard an Emma DiscumBOBulator is  always present and I was perplexed when I learned…

  • Morley – Pro Phaser

    Morley – Pro Phaser

    This Morley Tel-Ray Pro Phaser (PFA) came to my door for some TLC.  I love these old Morley products. The Tel-Ray name was given to a specific part of the Morley product line as…

  • Boss – ME-10; a tale of many caps

    Boss – ME-10; a tale of many caps

    This pedal came in as it wasn’t producing any sounds. It is a common problem with this pedal. This pedal was released in 1992 and run for only two years. It followed the ME-5…

  • Belcat – Power Master PM700

    Belcat – Power Master PM700

    Sometimes you need to fix products from China. This Belcat Power Supply is one of them. It came in as the owner lost power output at one section. Belcat is a Korean company that…

  • Flynn amps – Classic OC44 booster

    Flynn amps – Classic OC44 booster

    I got this pedal in as it wasn’t producing any sound. It is made by Flynn Amps (Glasgow, Scotland); a company that does wonders on amps but also produce a couple of pedals. This pedal is…

  • BBE – Mind Bender V1

    BBE – Mind Bender V1

    I got this pedal quite cheap as it developed a loud noise. As the noise was as loud as the audio it was not usable and needed to be fixed.The noise sounded like a…

  • EHX – Small Stone / vintage versions

    EHX – Small Stone / vintage versions

    The EHX Small Stone is next to the MXR Phase 90 one of the most known and common phase pedals out there!  The Small Stone was created in 1974 by David Cockerell, a former…