<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/harmonic-distortion</loc>
    <lastmod>2026-08-10T11:53:43-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/guitar-2_274da84a-09a5-42e1-87f7-85e9e3416fe1.jpg?v=1786388023</image:loc>
      <image:title>Harmonic Distortion</image:title>
      <image:caption>Harmonic Distortion Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/dynamic-range</loc>
    <lastmod>2026-08-10T11:53:53-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/JJ-6L6-CHA_37a8bc13-e428-44e8-80dd-fabdbddeda9a.jpg?v=1786388033</image:loc>
      <image:title>Dynamic Range</image:title>
      <image:caption>Dynamic Range Measurement</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/natural-compression</loc>
    <lastmod>2026-08-10T11:54:20-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/DSC02330_ff705394-41c6-4f9a-93fb-09fb319f60b6.jpg?v=1786388060</image:loc>
      <image:title>Natural Compression</image:title>
      <image:caption>6v6 tubes in amp</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/tube-amps-verses-solid-state-amps</loc>
    <lastmod>2026-08-10T11:54:23-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/ssvstube_7a6d5acf-dbda-4bb1-9384-026dbd552e5d.jpg?v=1786388063</image:loc>
      <image:title>Tube Amps Verses Solid State Amps</image:title>
      <image:caption>solid state amp vs tube amp</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/where-to-find-ruby/audionova-plus</loc>
    <lastmod>2026-08-10T11:53:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/Audionova_d254004a-db26-43d8-b798-909fa88c38c9.png?v=1786387999</image:loc>
      <image:title>Audionova Plus</image:title>
      <image:caption>Audionova Plus Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/where-to-find-ruby/stewmac</loc>
    <lastmod>2026-08-10T11:53:39-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/StewMac.jpg?v=1786388019</image:loc>
      <image:title>StewMac</image:title>
      <image:caption>StewMac Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/where-to-find-ruby/dougs-tubes</loc>
    <lastmod>2026-08-10T11:53:56-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/Dougs_tubes_c6b380e8-4352-4ccb-98c9-802832a6462e.png?v=1786388036</image:loc>
      <image:title>Dougs Tubes</image:title>
      <image:caption>Doug&apos;s Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/where-to-find-ruby/egm-distribution</loc>
    <lastmod>2026-08-10T11:53:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/EGM_Dist.jpg?v=1786388016</image:loc>
      <image:title>EGM Distribution</image:title>
      <image:caption>EGM Distribution Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/news/ruby-visits-shuguang</loc>
    <lastmod>2026-08-10T11:53:31-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/Picture1_a9796d10-311d-4455-9f74-713c46c8fe16.jpg?v=1786388011</image:loc>
      <image:title>Ruby Visits Shuguang!</image:title>
      <image:caption>Ruby Visits Shuguang! Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/ruby-tubes-matching-testing-process</loc>
    <lastmod>2026-08-10T11:53:29-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/DSC09055.jpg?v=1786388009</image:loc>
      <image:title>Ruby Tubes Matching &amp; Testing Process</image:title>
      <image:caption>Ruby Tubes Matching &amp; Testing Process Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/how-to-know-when-your-guitar-amp-needs-new-tubes</loc>
    <lastmod>2026-08-10T11:54:00-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/BrokenTubes_4156de8a-1e5f-4377-a3c0-1de64a3dbb3b.jpg?v=1786388039</image:loc>
      <image:title>How to Know Your Guitar Amp Needs New Tubes: Improve Your Tone Now</image:title>
      <image:caption>A Box of broken vacuum tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/12ax7-ecc83-preamp-tube-guide-buyers-tips</loc>
    <lastmod>2026-08-10T11:54:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/jj_12ax7_tube_f38ef054-b047-473a-83e6-42e5176e1774.jpg?v=1786388043</image:loc>
      <image:title>12AX7 / ECC83: Everything You Need to Know Before You Buy | April Tube of the Month</image:title>
      <image:caption>JJ 12ax7 photo</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/the-6l6gc-and-5881-power-tube-guide</loc>
    <lastmod>2026-08-10T11:53:47-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/JJ_6l6GC_Tube_Of_The_Month.jpg?v=1786388027</image:loc>
      <image:title>The 6L6GC and 5881 Power Tube Guide: Master of American Tone | May Tube of the Month</image:title>
      <image:caption>6l6gc tube of the month</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/el34-vs-6l6-vacuum-tube-comparison</loc>
    <lastmod>2026-08-10T11:53:51-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/6l6vsel34.jpg?v=1786388031</image:loc>
      <image:title>Which Power Tube Wins: EL34 for Marshall or 6L6 for Fender?</image:title>
      <image:caption>6l6 vs el34</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/vacuum-tube-kits-guitar-hi-fi-amplifiers</loc>
    <lastmod>2026-08-10T11:53:24-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/Fender_Hot_Rod_GT_Tube_Kit_V2_de2d77f8-ad36-44ca-824e-a8a8efcb1ce8.jpg?v=1786388004</image:loc>
      <image:title>Vacuum Tube Kits for Guitar Amps &amp; Hi-Fi Amplifiers | Find the Right Retube Kit Fast</image:title>
      <image:caption>Vacuum Tube Kits for Guitar Amps &amp; Hi-Fi Amplifiers | Find the Right Retube Kit Fast Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/june-tube-of-the-month-the-el34-power-tube-master-the-british-crunch-hi-fi-warmth</loc>
    <lastmod>2026-08-10T11:54:27-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/EL34TOTM_17b74620-3855-43fa-a21d-23df12403f8c.jpg?v=1786388067</image:loc>
      <image:title>June Tube of the Month: The EL34 Power Tube | Master the British Crunch &amp; Hi-Fi Warmth</image:title>
      <image:caption>el34 tube of the month</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/kt88-tube-guide-audiophiles</loc>
    <lastmod>2026-08-10T11:54:16-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/Kt88_Good_Photo_94257a85-e4a8-4d1a-8e67-1f6782ed2837.jpg?v=1786388056</image:loc>
      <image:title>KT88 Power Tube: An Audiophile Guide | July Tube Of The Month</image:title>
      <image:caption>KT88</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/el84-6bq5-power-tube-guide-british-combo-tone</loc>
    <lastmod>2026-08-10T11:48:03-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/jj_el84v2_Pair_39ba284d-e24b-430e-ab23-7e17110b839d.jpg?v=1786387683</image:loc>
      <image:title>EL84 / 6BQ5 Power Tube Guide: The Chime Behind British Combo Tone | August Tube of the Month</image:title>
      <image:caption>two jj el84 power tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/best-tubes-for-hi-fi-audio</loc>
    <lastmod>2026-08-10T11:54:14-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/JJ_box_LGP_6d4d3f76-dc45-45bc-ab1d-cee5bf0b1a70.jpg?v=1786388054</image:loc>
      <image:title>Best Tubes for Hi-Fi: A High-End Audio Buyer&apos;s Guide</image:title>
      <image:caption>Best Tubes for Hi-Fi: A High-End Audio Buyer&apos;s Guide Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-knowledge/tube-amp-buzzing-humming-crackling-fixes</loc>
    <lastmod>2026-08-10T11:54:06-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/soundsbad_f1a1522f-d928-4b55-91f1-394277861a66.jpg?v=1786388046</image:loc>
      <image:title>Why Is My Tube Amp Buzzing, Humming, or Crackling? Causes and Safe Fixes</image:title>
      <image:caption>Why Is My Tube Amp Buzzing, Humming, or Crackling? Causes and Safe Fixes Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/news/furthest-waves-guitars-california-surf-guitars</loc>
    <lastmod>2026-08-10T11:54:10-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/furthestwavesgif_ab9e6ceb-d552-478f-bb80-70d2d3f5a4f9.gif?v=1786388050</image:loc>
      <image:title>Furthest Waves Guitars: Handmade California Surf &amp; Offset Electrics</image:title>
      <image:caption>Furthest Waves Guitars: Handmade California Surf &amp; Offset Electrics Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/news/connors-corner-summer-of-sound</loc>
    <lastmod>2026-08-21T10:12:19-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/f7386e8e-7534-4795-a113-f5e78c954ab6_f7d1c7c7-53ff-463b-bf70-0c92b86f28d7.jpg?v=1787332339</image:loc>
      <image:title>Connor&apos;s Corner: Summer Of Sound</image:title>
      <image:caption>Connor&apos;s Corner: Summer Of Sound Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/12at7-ecc81-preamp-tube-guide-reverb-phase-inverter</loc>
    <lastmod>2026-09-01T00:00:05-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/12at7_tube.jpg?v=1786992121</image:loc>
      <image:title>12AT7 / ECC81 Preamp Tube Guide | September Tube of the Month</image:title>
      <image:caption>12AT7 / ECC81 Preamp Tube Guide | September Tube of the Month Ruby Tubes</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://rubytubes.com/blogs/tube-of-the-month/5ar4-gz34-rectifier-tube-guide-sag-tone</loc>
    <lastmod>2026-10-02T14:24:36-07:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0735/0206/4948/articles/5AR4_57135232-4df6-4482-9760-aedfb945aac9.jpg?v=1790976276</image:loc>
      <image:title>5AR4 / GZ34 Rectifier Tube Guide: Sag, Warm-Up &amp; Tone | October Tube of the Month</image:title>
    </image:image>
  </url>
</urlset>
