"A"
"B"
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
'O' to 'On', 'Op' to 'Oq', 'Or' to 'Oz'
OBSOLETE. Products that have been replaced by a newer or more advanced function. Products that have been discontinued or no longer being manufactured. Also refer to Part Life Cycle Definition, or Distributors of Obsolete Components
OCTAL NUMBER SYSTEM. A number system based on powers of eight. Refer to the Octal Conversion Table.
OFF-LINE TEST EQUIPMENT. Equipment that tests and isolates faults in modules or assemblies
removed from systems.
| OFF-SET NULL. A two terminal balance adjustment on an Op-Amp used to zero or null the output. A balanced condition of a circuit that represents zero output, as in Off-Set Null of an Op Amp. A related term; Null. Note the Off-set adjustment in the graphic, a 1K potentiometer connected between the two Balance terminals [BAL a and BAL B] of an Op-Amp. |  Off-Set Null |
OHM. The unit of electrical resistance. That value of electrical resistance through which a constant potential difference of 1 volt across the resistance will maintain a current flow of 1 ampere through the resistance.
OHMIC VALUE. Resistance in ohms. Also refer to Resistor Definitions
Ohm Meter
OHMMETER. A meter used to measure resistance. Refer to the Test Equipment Manufacturers page.
OHM'S LAW. The current in an electrical circuit is directly proportional to the electromotive force in the circuit. The most common form of the law is E = IR, where E is the electromotive force or voltage across the circuit, I is the current flowing in the circuit, and R is the resistance of the circuit.
OHMS PER SQUARE. The resistance of any square area of thin film resistive material as measured between two parallel sides.
OILCAN TUBE. A type of planar tube, similar to the lighthouse tube, which has cooling fins. The oilcan tube is designed to handle large amounts of power at uhf frequencies.
Next section of "O" terms
