The pinion knob on a microscope is used to adjust the focus by moving the stage up or down. The condenser level is used to adjust the height of the condenser lens to control the amount of light entering the specimen.
After you adjust the coarse adjustment knob, the fine adjustment knob makes it sharper or clearer.
To focus the image of the specimen
The function of a microscope's coarse adjustment knob is to improve focus on the object under study by adjusting the lens. Unlike the fine adjustment, coarse adjustment moves the lenses quickly.
The illumination intensity knob controls the brightness of the light source in a microscope. By adjusting this knob, you can increase or decrease the amount of light that shines on the specimen, helping to improve visibility and contrast for better microscopy observations.
To ensure suitable amount of pressure is applied onto the object
It is used to make the picture sharper/clearer.
The rack and pinion substage in a compound microscope is a mechanism that allows you to adjust the vertical position of the stage. By turning the knob, the rack and pinion system moves the stage up or down to focus the specimen being observed under the objective lens. This feature helps to achieve sharp images by adjusting the distance between the specimen and the objective lens.
The course adjustment knob on a microscope is used to quickly focus on the specimen by moving the objective lens up or down. It is typically used for initial rough focusing before using the fine adjustment knob for precise focusing.
The condenser knob in a microscope is used to adjust the position of the condenser lens, controlling the amount of light that reaches the specimen. By adjusting the condenser knob, the user can optimize the illumination and contrast of the specimen being viewed under the microscope.
To access the function menu on an Alpine CDA-7850, press the "Menu" button on the front panel of the unit. This will bring up the main menu options. Use the volume knob or the arrow buttons to navigate through the menu and select the desired function by pressing the knob or the "Enter" button.
I have a 94 Firebird and on the bottom of the shifter knob there is a "U" shaped clip. You will have to shift into L1 to see it since it is on the front of the knob. Once you pull out the clip, it slides off and you can replace it with whatever kind you wnat but make sure the "push to shift" function is on the new knob.