profile---4--{'original_item': {'oid': 69}, 'provider_user_id': 69, 'provider_user_key': 69, 'community': None} -- profile---

    Olivia Rodrigo Rig Rundown

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    R.G. Keen
    R.G. Keen is a former contributor to Premier Guitar.

      R.G. Keen

      Posts from R.G. Keen

      Make a Mic Muter

      R.G. Keen
      11 November 2008

      Troubleshooting Tube Amps

      R.G. Keen
      13 October 2008

      The Immortal Amp Mods, Pt. 4

      R.G. Keen
      09 September 2008

      The Immortal Amp Mods, Pt. 3

      R.G. Keen
      15 August 2008

      The Immortal Amp Mods - Pt. 2

      R.G. Keen
      10 July 2008

      The Immortal Amplifier Mod

      R.G. Keen
      10 June 2008

      The Life and Death of an Electrolytic Cap

      R.G. Keen
      12 May 2008

      Are You Listening With Your Eyes?

      R.G. Keen
      09 April 2008

      The Ins and Outs of Layout

      R.G. Keen
      11 March 2008

      The ’59-’63 Fender Concert Vibrato

      R.G. Keen
      08 February 2008

      Tube Amp Tune-Up

      R.G. Keen
      09 January 2008

      Exploring Tone Controls

      R.G. Keen
      11 December 2007

      Should You Bypass True Bypass - Again?

      R.G. Keen
      09 November 2007

      Diode Stew

      R.G. Keen
      10 October 2007

      Why is a Good Amp Tech So Hard to Find?

      R.G. Keen
      10 September 2007

      Adjustable Clipping in VOX Amps

      R.G. Keen
      08 August 2007

      True Confessions: I Like Thomas Organ Vox Amps

      R.G. Keen
      11 July 2007

      The Secret World of Amp Caps

      R.G. Keen
      12 June 2007

      JFET Switching

      R.G. Keen
      14 May 2007

      Tube Matching - Needed or Not?

      R.G. Keen
      12 April 2007

      The Millenium Bypass

      R.G. Keen
      19 March 2007

      Amp Power, Speakers & Loudness

      R.G. Keen
      19 March 2007

      The Zen of Power Adapters

      R.G. Keen
      15 March 2007

      The Super-Secret Transformer Tester

      R.G. Keen
      15 March 2007