Manual do usuário Marshall Amplification 1959HW

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ENGLISH Introduction Overview: Historical, Tone and Tech Talk The 1959HW is a Class-A/B, all-valve, 100 Watt, two-channel head. When building this handwired re-issue of an amazing sounding, original Plexi head made in 1969, our goal was both obvious and simple: to make it as close to the original as possible in terms of components, circuitry, constructional methods, materials, specifications, aesthetics, signal path, performance, tonal characteristics and feel. We went to incredible lengths to a

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ENGLISH OUTPUT MAINS TRANSFORMER Tone Circuit: In typical Marshall fashion, the shared tone network of this handwired 1959 re-issue is TRANSFORMER post gain, passive and interactive - the latter simply meaning that the settings of the Bass and Treble controls affect the amount of mid-dip available via the Middle control. CHOKE Tonal Note 2: The Middle control is a 10% log pot, unlike the linear one found in the regular production 1959SLP. This greatly changes the dynamic of the whole tonal netwo

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ENGLISH 10 12 Chassis: We are using a box-section chassis made from 16 gauge mild steel with butt-welded corner joints. The steel is also passivated giving lifelong resistance to corrosion. 1959HW Front Panel Our original chassis has a lot of extra holes drilled in it that weren't used. No doubt these existed because the same exact chassis was also used for other products made at the time. The most noticeable ‘extra hole’ is one on top for a fourth ECC83 and on our reference unit, this particula

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ENGLISH 11. LOW SENSITIVITY INPUT FOR 12. HIGH SENSITIVITY INPUT FOR CHANNEL I CHANNEL II 1959HW Rear Panel This is the ‘low sensitivity’ guitar input for Channel I. This is the ‘high sensitivity’ guitar input for Channel II, It is 6dB lower in volume than the ‘high sensitivity’ the so-called ‘Normal’ channel. input and has a darker sound as well due to its significantly lower input impedance. 13. LOW SENSITIVITY INPUT FOR CHANNEL I Interesting aside: Back in the day, a ‘high This is the ‘low se