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It's All About the Glass

Cascade Tubes

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Tag Archives: KT88

Shifting Priorities

Posted on February 6, 2025 by Matt
5

Remember when I said that you can’t always get what you want? Well, it turns out you can. At least in this case. Especially if you are willing to shift some priorities.

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Posted in Uncategorized | Tagged 6L6, 6V6, 807, Edcor, frequency, GXSE10-5k, GXSE15-5k, inductance, KT88, marblewood, Spalted Alder | 5 Replies

About that Other Amp

Posted on March 4, 2024 by Matt
1

There is truly nothing like the smell of a freshly wound transformer.

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Posted in Uncategorized | Tagged 807, Edcor, KT88, power supply, transformer, triode, triode strapped | 1 Reply

Prototype Data Lights the Way

Posted on February 11, 2024 by Matt
7

I have the initial set of data with the power supply prototype using the Edcor XPWR011 power transformer. It is enlightening and clearly shows which amplifier I need to build next.

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Posted in Uncategorized | Tagged 807, KT88, power supply, prototype, prototyping | 7 Replies

The Next Amp

Posted on December 4, 2023 by Matt
7

So I’ve been thinking about my next amplifier project. And I thought I had made up my mind. Then things changed… again.

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Posted in Uncategorized | Tagged 6L6, 807, Amplifier, KT88, power stage, power supply, transformer, triode, triode strapped | 7 Replies

Old Dog, New Tricks

Posted on April 26, 2022 by Matt
1

Although sometimes it may take a little disturbance to the system, as it turns out, you can teach an old dog new tricks.

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Posted in Uncategorized | Tagged 6L6 SE-UL, KT88, labels, mistake | 1 Reply

Everyone Makes Mistakes

Posted on March 27, 2022 by Matt
4

Today I was once again reminded of the perilous state of human fallibility and the risks of personal hubris. The cost of today’s lesson? One ruined KT-88. And a little smoke in the office.

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Posted in Uncategorized | Tagged jig, KT88, smoke, test | 4 Replies

Talking about SETs

Posted on December 29, 2021 by Matt
10

With my shop temperature hovering around 38°F (≈3°C) and with the outside temperature hovering around 20°F (≈-7°C) I though that today might be a good time for a little “inside” amplifier discussion. And today’s discussion is about SETs; BIG ONEs.

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Posted in Uncategorized | Tagged KT88, SET, triode strapped | 10 Replies

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Articles of Note

  • “Experts” 0
  • A Note on Feedback 0
  • A Tale of Two Tubes 0
  • About that Volume Control 0
  • About that Volume Control – Part II 0
  • About Tube Books 0
  • Another Note on Feedback with Black's Original Paper 0
  • Audio Heresy – Lampizator 0
  • Audio Power – Wikilink 0
  • Cathode Bypass and Frequency Range 0
  • Cathode Bypass and Frequency Range, Part II 0
  • Component Tolerances & Modern Manufacturing 0
  • Consequence of The Quest for 20Hz Roll Off 0
  • Distortion Misunderstood 0
  • Engineering! 0
  • How Amp Technology Affects Volume and Power 0
  • How Much Audio Bandwidth? 0
  • Identifying a Mystery Tube 0
  • In Praise of the Album 0
  • Low Frequency Output Transformer Performance 0
  • Matt's Grounding Philosophy 0
  • Sensitivity and Amp Power – Chuck Hawks 0
  • Talking about SETs 0
  • The Quest for 20Hz Roll Off 0
  • Toroids and “Shorted Turns” 0
  • Tube Sound – Power Stage Topology 0
  • Tube Testers 0
  • Understanding Speaker Power Ratings – Eminence 0
  • Volume Controls and High Frequency Response 0
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