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Tube Data Sheets & Guitar Amp Prints

Tube Data Sheets & Guitar Amp Prints

Below I will have continually updated vacuum tube data sheets listed and guitar amplifier prints.  There are also links to some websites with prints on the first page of this…

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Reissue versus the original amps

Reissue versus the original amps

In the above “article”, there may be the misconception (or from some of my two forum’s comments), that I was saying that the reissue amps can “be” every bit the…

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Tube Rectifiers: How they differ & compare to Solid-State Rectifiers

Tube Rectifiers: How they differ & compare to Solid-State Rectifiers

Many people have many opinions on rectifiers in vacuum tube guitar amplifiers.  Some people feel that solid-state rectifiers are more reliable. This is true in one sense but gives vacuum…

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Biasing current production tubes

Biasing current production tubes

In the past output tubes and preamp tubes were much more consistent than they are today.  One could use the older method to bias output tubes with the scope/crossover method…

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Tube Matching

Tube Matching

You cannot convert a GT dynamic number to a static number. The GT number is based on where the tube distorts not just the idle draw. The only way you…

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NOS Tubes – The hype, myth, and reality.

NOS Tubes – The hype, myth, and reality.

Are NOS tubes any better or different than the new tubes made today? Many folks cannot seem to tell the difference. After a recent batch of new tube testing, where…

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Point to Point amps – some myths and why some “poor” techs love them

Point to Point amps – some myths and why some “poor” techs love them

Point to Point (PTP) and Printed Circuit Board (PCB) amps – an ongoing debate that rages on. Why do many of the most “non-technical” techs prefer these? I know ……

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Gain and Current in preamp tubes

Gain and Current in preamp tubes

I ran into numerous amplifier problems. ALL of these could have been avoided if some basic information was known or considered by the amp owner. I have said a lot…

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