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OVER DRIVE 4th
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The overdrive channel step it is 4th.
It is feature to use the directly connected [kasodohuoroa] circuit, but, the Marshall circuit that way the [paku] [tsu] [te] it is.
Also the distortion condition here becoming rather important, you think as the [ku].
R33 1k Cathode bias resistance. You think that it is good even with 1.5k, but whether something there is a circumstance R34 100k Plate load resistance R35 100k Cathode bias resistance. U8 is method of using, generally known cathode follower, it does not expand, it does not do the function which lowers output impedance. But expectation, 200V weakness depending on the cathode of U8, because it has biased with 100k, 2mA weakness it is the expectation which is flowing. Because withstand voltage between the heater and the cathode is 100V, but originally it should add the bias about of 80V to the heater, you do not happen to see the guitar amplifier which adds bias properly excessively R36 33k The resistance for LPF of tone control circuit. This constant is the tone control circuit of Marshall type VR8 250k Rheostat for [toreburukontororu]. Marshall standard value VR9 1M Rheostat for based control. Marshall standard value VR10 25k Rheostat for middle control. Normally 10k kana? 25k is large a little, just it is? VR11 1M Master volume VR12 1M Master volume C28 470p The condenser for HPF of tone control circuit. Marshall standard value C29 0.022u DC cutting condenser of tone control circuit. Marshall standard value C30 0.022u The cutting condenser for LPF of tone control circuit. Marshall standard value SW14 * Transfer in channel. Master volume can be set separately
