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01-07-2020, 02:10 PM
Hi jmcd
Even as it is you can play guitar through it and get a good sound depending on what your goal is. For example, it will be pedal friendly since the amp's character is rather neutral, especially if you fit it with real 6CA7s or 6L6s, which sound the same but smell different when hot
As you optimise the amp for more modern guitar tones, you make it more your own. The chassis size and eyelet board makes it very easy to work on for mods or repairs.
Grounding is random and for the original circuit the noise level will be acceptable. As you increase gain you may find grounding needs to be adjusted. One good initial mod is to redo the bias circuit so each tube has its own bias pot. This allows the output stage to be hum-balanced and you can use any tube type or mix of types you desire. Add current-sense resistors and meter jacks to make bias checking/setting safe.
Even as it is you can play guitar through it and get a good sound depending on what your goal is. For example, it will be pedal friendly since the amp's character is rather neutral, especially if you fit it with real 6CA7s or 6L6s, which sound the same but smell different when hot
As you optimise the amp for more modern guitar tones, you make it more your own. The chassis size and eyelet board makes it very easy to work on for mods or repairs.
Grounding is random and for the original circuit the noise level will be acceptable. As you increase gain you may find grounding needs to be adjusted. One good initial mod is to redo the bias circuit so each tube has its own bias pot. This allows the output stage to be hum-balanced and you can use any tube type or mix of types you desire. Add current-sense resistors and meter jacks to make bias checking/setting safe.
