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| America Wire Gauge= Gauge/diameter |
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| The Three Type of Shielding: |
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| The Three Types of Noise: |
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| Shielding helps to reduce: |
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Sex of connectors:
Jacks=
Plugs= |
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| American's Wall Outlets offer: |
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| Solder used in class are: |
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Definition
| 60/40 Rosin Core:composed of 60% Tin and 40% lead |
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| What does OPEN means and value: |
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Definition
a connection where it not suppose to be and it value is infinity(ohms)
EX. PIN#2 is open to PIN#1 |
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Term
| What is SHORT means and values |
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Definition
a connection that is neant to be and about 0 ohms
EX.PIN#1 is short to PIN#1 |
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| Desoldering fused connection with: |
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Definition
| wick/bulb/pump or desoldering iron |
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Definition
| it represent an electrical connection |
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| have no wires between the IN/OUT 's |
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| The solder terminals for the tip,ring,sleeve and normalling contacts can be founded using: |
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Definition
| the difference in electrical potential two point. |
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Definition
| the oppositionto current flow(given in ohms) |
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| the most common troubleshooting involves testing: |
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Definition
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| The Three flavor of voltage are: |
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Definition
| AC/DC/AC with a DC offset |
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Definition
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| when oscilloscope is set at AC |
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Definition
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| when oscilloscope is set at DC |
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Definition
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| when oscilloscope is set at GND |
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| What Percent of isopropyl alcohol is use to clean: |
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Definition
| Magnetic References Laboratory |
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Term
| in the USA,the EQ switch is set to NAB at: |
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Definition
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Term
ANSI(US)nWb/m
520=
370=
320=
250=
185= |
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Definition
dB References to 185nWb/m
520=+9dB
370=+6dB
320=+5dB
250=+3dB
185=0dB |
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| the higher the operating level: |
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Definition
| the lower the noise floor |
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| what are L,M and H are setting for difference speeds |
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Definition
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| wind analog tape reel with the tails: |
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| Stores tapes in a environment: |
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| Stores tapes in a environment: |
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| Repro Azimuth/Recheck repro azimuth : |
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| a Digital multi meter is used to measure: |
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| Turning on an active component require: |
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| Op amps and transistor are: |
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| transformer and inductor are: |
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| integrated circuits chip pin number can be founded by referencing the location of the Dot. The Dot = |
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Definition
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Term
| Common IC chips type includes: |
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Definition
linear(operational amplifiers)
digital(logic gates)
component chip(resistors,capacitors and etc.) |
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| infinite ohms,no current flow |
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| has current flow by design |
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| current take the path of least resistance/0 ohms/not by design |
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| circuits path does not split/it add up |
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Definition
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| Parallel voltage are always: |
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| the voltage across a short= |
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Definition
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| Voltage across a working fuse= |
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| they direct all AC waves half cycles to travel in the same direction |
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| Bipolar transistors leads are called: |
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Definition
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Definition
| the source,gate,and drain |
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| what are Op amps schematic symbol: |
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Definition
| inverting(-) and non-inverting(+) |
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Term
| a differential op amplifier amplifies: |
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Definition
| the difference between the two signal at its inputs |
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Term
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Definition
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Term
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Definition
| are used to show how a logic circuit's output responds to various combination of the inputs |
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Term
| TTL(transistors-transistors logic)indicates: |
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Definition
| the bipolar digital gate family |
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Term
| the operating level for CMOS digital ICs is a fixed value between: |
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Definition
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Definition
| metal runs on only one side of the board |
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| metal runs on both sides of the board |
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Definition
| parts are soldered into the circuit board |
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| no parts are soldered into the circuit board |
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Term
| wide metal runs on a printed circuit board(PCB) are: |
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Definition
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| soldering should be performedd quickly on a circuit board so that traces: |
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Definition
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Term
| Repairing a PCB crack involves: |
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Definition
-use of insulated wire,
-leaving stress excess
-removing enamel,
-knowledge of magnet wire enamel removal |
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Term
| The three most important features in services manual are the: |
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Definition
-Schematic drawings
-Assembly drawings
-Parts description lists |
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| What is a Cross-Reference: |
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Definition
| a companies offer the sales of the same component under different names |
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| what two ways of calibration use dry erase markers: |
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Definition
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Definition
| rec. 1k at 0 VU and playback should be 0 VU |
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| Rack(forward/backward) is set by: |
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Definition
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| Azimuth is set in electrical cal with: |
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Definition
| an oscilloscope or monometer method |
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Term
| What are common method for biasing are: |
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Definition
10k overbias
1kHz peak method |
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| in europe, the 0dB nWb/m value is: |
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Definition
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180nWb/m=
(185 nWb/m at 700 Hz) |
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250 nWb/m
(260 nWb/m at 700 Hz) |
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