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CLEAN 1st
Prohibited no permission reprint
It is the first level of clean channel.
The tone control circuit and volume of fender type have been added to the standard 1 step amplifiers of cathode bias resistance 1.5k and plate load resistance 100k.
R4 1.5k Cathode bias resistance. Fender standard value R5 100k Plate load resistance. Fender standard value R6 100k LPF resistance of tone control circuit. C4: LPF is formed with 0.47u and this 100k. Fender standard value VR1 250k Rheostat for [toreburu] adjustment of tone control circuit. Fender standard value VR2 250k Rheostat for based adjustment of tone control circuit. Fender standard value VR3 25k Rheostat for middle adjustment of tone control circuit. It is possible to put out the middle more strongly than 10k which is fender standard value VR4 1M Rheostat for volume adjustment. The bright switch having been attached, when it TURNS ON, when squeezing volume, you can obtain the sound where the coming out which [shiyatsukiri] [patsukiri] is done is good. When volume is connected to rear of the tone control circuit directly, when it makes small value below 1M, quality changes. Fender standard value C1 22u Cathode bias resistant by-pass capacitor. fc=4.8Hz, the design which it passes low securely to the limits C2 220p HPF condenser of tone control circuit. With three VR HPF is formed. As for fender standard value 250p C3 0.1u Coupling capacitor of tone control circuit. The sound which passed by LPF due to R6 and C4 the condenser in order to mix with the sound which passed by HPF. As for role simply direct current cutting C4 0.047u LPF condenser of tone control circuit C5 100p Condenser of bright switch. As for fender standard value 120p C6 220p Condenser of bright switch. Because it is 220p, the effect is larger than 100p SW1 * Bright switch
