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Summary of Contents for SCIENCE DECOLONIZER
- Page 3 Tip: For the cleanest tone possible, set the Clean channel Loudness maximum, and use the Clean gain to adjust the overall volume level. For the most overdriven sound possible from the Clean channel, set the Clean gain to maximum and bring up the Clean Loudness to the desired Note: This control is more effective with closed-back speaker cabinets, and even more exaggerated with larger enclosures...
- Page 4 Note: Speakers must be rated for at least the full rated clean output power of the amplifier (100W). Under overdrive conditions, the clean power can be exceeded by tens of watts, therefore it is preferable to use speakers whose combine power rating exceeds the clean power rating.
- Page 5 Note: The 4 output tubes work in pairs; the left bias control adjust the bias voltage for V1 and V2, while the right control adjusts the bias voltage for V3 and V4. While the output tubes can only be adjusted in pairs, a test jack is provided for each individual tube to provide more accurate bias monitoring (e.g.
- Page 6 Note: A electronic volt meter (digital preferred) with a millivolt setting is needed to make bias readings/adjustments. A digital multimeter can be found cheaply at any hardware store. Here's the cheapest we've found on the web, which is totally sufficient for the job: ote: The 4 output tubes work in pairs;...
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- Page 8 • Tip: If you think you have a microphonic tube, you can very gently tap on each tube with a pencil's eraser to see if the sound becomes worse or changes. All tubes will amplify the sound a little, especially preamp tubes. But for example, if you hear an intermittent ringing sound and tap each tube to find V9 is causing the ringing to start and stop, you can be sure it's the problematic tube! Tip: Buy “burned-in”...
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