iv.Apply power to the generator, preamplifier, then the level meter.

v.Adjust the generator output level so that the preamplifier output level is at the desired red threshold. If the proper level can't be reached, adjust the preamplifier gain control.

vi.Locate VR1 on the channel 1 audio circuit board. (See figure 7) Adjust VR1 until the peak LED is between green and red. The color should appear amber when the setting is correct.

vii.Repeat this procedure for channel 2.

viii.If it is desired to calibrate the peak indicator to a specific tape recorder input level, simply replace the level meter with the recorder. Adjust the signal generator so that the desired peak level is indicated on the recorder and then adjust VR1 until the peak LED is between green and red.

Figure 7. PEAK LED ADJ. VR1 AND OFFSET ADJ. VR2 LOCATIONS

C.INPUT OFFSET ADJUSTMENT: The input amplifiers in the 201 are ultra precision laser trimmed devices that have a very low input offset. However, even the smallest differential offset at the input can result in an audible "click" when the gain control is turned. It should be noted that this type of click will be audible when no signal is present. With no signal present there is no signal amplitude to be changed unless input offset is present. The DC servo circuit in the 201 corrects any DC errors that appear at the output of the instrumentation amplifier stage. It can not correct the very small offset at the inputs. This procedure nulls the input offset and minimizes the clicking sound with no signal present. In contrast, there will almost always be an audible click if turning the gain control while a signal is present. This is because the gain control, being a stepped control, will make an instantaneous change in amplitude when turned, which creates a transient signal.

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Microplane 201 owner manual
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201 specifications

The Microplane 201 is a finely crafted culinary tool widely renowned for its exceptional grating and zesting capabilities. It is an essential instrument for both professional chefs and home cooks looking to enhance the flavor and presentation of their dishes. This versatile tool stands out due to its innovative design and advanced technology, which contribute to its popularity in kitchens around the world.

One of the main features of the Microplane 201 is its stainless steel grating surface. The razor-sharp, photo-etched blades are engineered to provide precision and efficiency. Unlike traditional graters, which can crush or bruise ingredients, the Microplane 201 slices through food with minimal effort, preserving the integrity and flavor of the ingredients. This is particularly important when it comes to delicate tasks such as zesting citrus fruits or grating hard cheeses.

Another notable characteristic of the Microplane 201 is its ergonomic design. The handle is crafted for comfort, allowing users to maintain a firm grip while grating ingredients. This ergonomic consideration reduces hand fatigue, enabling users to perform repetitive tasks with ease. Additionally, the lightweight construction of the Microplane 201 enhances maneuverability, making it simple to use in various cooking scenarios.

The Microplane 201 also features a protective cover that ensures safe storage after use. This cover not only extends the lifespan of the blades by preventing damage but also protects users from accidental cuts when reaching into drawers or cabinets.

In terms of versatility, the Microplane 201 can tackle a wide range of ingredients, from soft vegetables like garlic and ginger to harder items such as nutmeg and chocolate. This multifunctionality makes it indispensable in any kitchen, whether you are preparing gourmet meals or simple everyday dishes.

Cleaning the Microplane 201 is a breeze as it is dishwasher safe, allowing for convenient maintenance and ensuring that it remains in top condition for years to come. Its sleek design and shiny stainless-steel finish also add a touch of elegance to kitchen tools.

In summary, the Microplane 201 is a top-tier grating tool that exemplifies innovation in kitchen technology. With its sharp blades, ergonomic design, and versatility, it emerges as a must-have tool that simplifies food preparation while enhancing culinary creativity. Whether you are zesting lemons for a dessert or grating cheese for a pasta dish, the Microplane 201 delivers outstanding results every time.
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