AGC FOR THE X1M - PAR Electronics
... CHANGED TO 1M DURING THE TESTING PHASE. THE OUTPUT OF THE SECOND STAGE GOES THROUGH A 5.1K RESISTOR WHICH TENDS TO ISOLATE THE AGC DURING X1M TX CYCLES. I HAVE NOT YET DETERMINED WHY THIS IS NECESSARY – BUT LOW VALUES LIMIT THE POWER OUTPUT ON SSB. AT THIS TIME IT IS SUFFICIENT TO SAY THAT R5 ALLOWS ...
... CHANGED TO 1M DURING THE TESTING PHASE. THE OUTPUT OF THE SECOND STAGE GOES THROUGH A 5.1K RESISTOR WHICH TENDS TO ISOLATE THE AGC DURING X1M TX CYCLES. I HAVE NOT YET DETERMINED WHY THIS IS NECESSARY – BUT LOW VALUES LIMIT THE POWER OUTPUT ON SSB. AT THIS TIME IT IS SUFFICIENT TO SAY THAT R5 ALLOWS ...
Schematics - Schematic devices and diagrams
... • Zip ties are not structural nor are they suitable for high heat environments. • Lacing does a much cleaner job, but is harder to service or install a new wire into. ...
... • Zip ties are not structural nor are they suitable for high heat environments. • Lacing does a much cleaner job, but is harder to service or install a new wire into. ...
Topic 18 Safety
... A. They must be bonded to all buried water and gas lines. B. Bends in ground wires must be made as close as possible to a right angle. C. Lightning grounds must be connected to all ungrounded wiring. D. They must be bonded together with all other grounds. ...
... A. They must be bonded to all buried water and gas lines. B. Bends in ground wires must be made as close as possible to a right angle. C. Lightning grounds must be connected to all ungrounded wiring. D. They must be bonded together with all other grounds. ...
Wirebondable Finishes Application Notes
... need for a high volumes and a very high level process quality, as well as the ever increasing cost of the precious metal has led to the development of a number of alternative processes which include, Silver, Nickel Palladium and Nickel Phosphorous materials and various Nickel / Palladium / Gold plat ...
... need for a high volumes and a very high level process quality, as well as the ever increasing cost of the precious metal has led to the development of a number of alternative processes which include, Silver, Nickel Palladium and Nickel Phosphorous materials and various Nickel / Palladium / Gold plat ...
P85326
... 3. When terminating field wires, do not use more lead length than required. Excess lead length could result in insufficient wiring space for the signaling appliance. 4. Use care and proper techniques to position the field wires in the backbox so that they use minimum space and produce minimum stre ...
... 3. When terminating field wires, do not use more lead length than required. Excess lead length could result in insufficient wiring space for the signaling appliance. 4. Use care and proper techniques to position the field wires in the backbox so that they use minimum space and produce minimum stre ...
Transformer Disassembly and Inductor Winding
... the primary will not hurt anything, and may make winding easier. For the transformer shown, 5 to 6 turns per leg of the primary works well. The number of turns needed on the secondary can be calculated as 0.88 times the number or turns on the primary. Assuming 5 turns per leg on the primary, the num ...
... the primary will not hurt anything, and may make winding easier. For the transformer shown, 5 to 6 turns per leg of the primary works well. The number of turns needed on the secondary can be calculated as 0.88 times the number or turns on the primary. Assuming 5 turns per leg on the primary, the num ...
Hot Wire Anemometry and Fluid Flow Measurement
... Errors due to neglecting higher order terms Rectification Error – insensitive to reversal of flow direction. Contamination: Deposition of impurities in flow on sensor alter the calibration characteristics and reduce frequency response. Probe breakage and burn out Unable to fully map velo ...
... Errors due to neglecting higher order terms Rectification Error – insensitive to reversal of flow direction. Contamination: Deposition of impurities in flow on sensor alter the calibration characteristics and reduce frequency response. Probe breakage and burn out Unable to fully map velo ...
Facilities - Forest Fire Lookout Association
... The Forest Service, United States Department of Agriculture (USDA), has developed this information for the guidance of its employees, its contractors, and its cooperating Federal and State agencies, and is not responsible for the interpretation or use of this information by anyone except its own emp ...
... The Forest Service, United States Department of Agriculture (USDA), has developed this information for the guidance of its employees, its contractors, and its cooperating Federal and State agencies, and is not responsible for the interpretation or use of this information by anyone except its own emp ...
Thermostatically controlled electric water heater
... has curved extending ends clasping wires 35 and contact made between adjustable switch arm 23 40 passed through them. At the free end of bi and bi-metal switch arm 24. This will cause metal switch arm 24 is contact button 25. current to flow through the circuit, lighting lamp Rigid wires 35 and 40, ...
... has curved extending ends clasping wires 35 and contact made between adjustable switch arm 23 40 passed through them. At the free end of bi and bi-metal switch arm 24. This will cause metal switch arm 24 is contact button 25. current to flow through the circuit, lighting lamp Rigid wires 35 and 40, ...
Installation and Troubleshooting Guide
... Connect the Orange jumper wires to the Green wires according to the numbers on the wires. Connect the Orange jumper wires to the ignition coils according to the color code of the wires and cylinder numbers {NOTE: Remember the top cylinder uses a Orange/Blue wire while the bottom cylinder uses a Oran ...
... Connect the Orange jumper wires to the Green wires according to the numbers on the wires. Connect the Orange jumper wires to the ignition coils according to the color code of the wires and cylinder numbers {NOTE: Remember the top cylinder uses a Orange/Blue wire while the bottom cylinder uses a Oran ...
preview - SOL*R
... of junctions connected in series. We will refer to this as a probe, to distinguish it from a single junction. Construct a probe by joining ten pairs of junctions in series (Figure 5) and bundling the ten probe junctions together and the ten reference junctions together (Figure 6). The bundles shown ...
... of junctions connected in series. We will refer to this as a probe, to distinguish it from a single junction. Construct a probe by joining ten pairs of junctions in series (Figure 5) and bundling the ten probe junctions together and the ten reference junctions together (Figure 6). The bundles shown ...
TM-1001 PS Word - White Oak Audio
... 17. Now install the breakaway header strip contacts which will be used to terminate the tuner wires to your board. This makes for a very neat installation. Install one terminal pin in each wire termination hole. Breakaway header strips allow you to break off individual terminals by clipping at the n ...
... 17. Now install the breakaway header strip contacts which will be used to terminate the tuner wires to your board. This makes for a very neat installation. Install one terminal pin in each wire termination hole. Breakaway header strips allow you to break off individual terminals by clipping at the n ...
development of a basic circuit of a hot-wire anemometer
... The core of this instrument is the filament sited in the anemometric probe. A deepened study of the behavior and of the physical performance of this filament is the key for the construction of a good anemometer. Perry (1982) is a excellent reference for this purpose. Typical commercially available h ...
... The core of this instrument is the filament sited in the anemometric probe. A deepened study of the behavior and of the physical performance of this filament is the key for the construction of a good anemometer. Perry (1982) is a excellent reference for this purpose. Typical commercially available h ...
Mig Welding Booklet - Weldwell New Zealand
... wire size needs to have the correct wire size liner. Be aware some liners may fit more than one size of wire. There are also different materials for different types of wire electrode, eg steel or stainless liners for solid wires and Teflon liner for aluminium. The liner length is most important. In ...
... wire size needs to have the correct wire size liner. Be aware some liners may fit more than one size of wire. There are also different materials for different types of wire electrode, eg steel or stainless liners for solid wires and Teflon liner for aluminium. The liner length is most important. In ...
chaser lights - Rainbow Kits
... decade counter with 10 decoded outputs. This means we only have an output on one pin at a time. We use 4 of these outputs to drive transistors, Q1, Q2, Q3 and Q4. We use output 5 to reset the counter and start the ‘chase’ over. Each time we put a pulse (from the LM555 IC) on pin 13 the output is adv ...
... decade counter with 10 decoded outputs. This means we only have an output on one pin at a time. We use 4 of these outputs to drive transistors, Q1, Q2, Q3 and Q4. We use output 5 to reset the counter and start the ‘chase’ over. Each time we put a pulse (from the LM555 IC) on pin 13 the output is adv ...
Printed Circuit Board - Montana State University
... 2) Find something to support the header while you solder the back side pins. At this stage of assembly you can probably just use the bench top, but later other components may inhibit this method of soldering headers. 3) A piece of tape can be used to hold the header in place. In some ways this seems ...
... 2) Find something to support the header while you solder the back side pins. At this stage of assembly you can probably just use the bench top, but later other components may inhibit this method of soldering headers. 3) A piece of tape can be used to hold the header in place. In some ways this seems ...
© 2009 Fast Heat, Inc. All Rights Reserved. Ground Leakage and
... present. It basically opens the thermocouple circuit protecting the junction and controller input circuitry. Second, a specialized protection device turns excessive “noise” and leakage current into heat. This is primarily used for any short duration pulses present in all industrial applications. Thi ...
... present. It basically opens the thermocouple circuit protecting the junction and controller input circuitry. Second, a specialized protection device turns excessive “noise” and leakage current into heat. This is primarily used for any short duration pulses present in all industrial applications. Thi ...
LECTURE 34 HIGH FREQUENCY TRANSFORMER A. Transformer
... winding area is taken up by voids between round wires, by wire insulation and any bobbin structure on which the wire turns are mounted as well as insulation between high voltage and low voltage windings. In practice, only about 50% of the window area can actually carry active conductor, This fractio ...
... winding area is taken up by voids between round wires, by wire insulation and any bobbin structure on which the wire turns are mounted as well as insulation between high voltage and low voltage windings. In practice, only about 50% of the window area can actually carry active conductor, This fractio ...
An explanation of standard vs high performance ignition coils
... panel. Remove the W/Y wire from terminal C4 of the starter relay, an plug it onto the unused terminal next to the white wire on the fuse box. If this is occupied, find another terminal that switches on/off with the ignition switch. This causes the coil to be powered by 12V all of the time, and will ...
... panel. Remove the W/Y wire from terminal C4 of the starter relay, an plug it onto the unused terminal next to the white wire on the fuse box. If this is occupied, find another terminal that switches on/off with the ignition switch. This causes the coil to be powered by 12V all of the time, and will ...
RFI and Ferrites
... are wound through core, the fields cancel, so only common mode current contributes to saturation – This allows ferrites to be effective on loudspeaker and power wiring ...
... are wound through core, the fields cancel, so only common mode current contributes to saturation – This allows ferrites to be effective on loudspeaker and power wiring ...
Control Plus Series Soft Patch III Manual Touch-Plate Lighting Controls
... to 20 amps at 277 VAC Tungsten or Ballast (and 347VAC for Canada). A secondary contact is provided for use with pilot lights. When the relay is operated, it changes state, from off to on or vice versa, and mechanically latches in that state. No holding current is required. As a result, heat in the e ...
... to 20 amps at 277 VAC Tungsten or Ballast (and 347VAC for Canada). A secondary contact is provided for use with pilot lights. When the relay is operated, it changes state, from off to on or vice versa, and mechanically latches in that state. No holding current is required. As a result, heat in the e ...
PES 1120 Spring 2014, Spendier Lecture 20/Page 1 Today
... Resisting the flow of current: Resistance is a measure of an object's opposition to the flow of electrons. This may sound like a bad thing, but it's actually very useful. Resistance is what makes it possible to generate heat and light, restrict the flow of electric current when necessary, and ensure ...
... Resisting the flow of current: Resistance is a measure of an object's opposition to the flow of electrons. This may sound like a bad thing, but it's actually very useful. Resistance is what makes it possible to generate heat and light, restrict the flow of electric current when necessary, and ensure ...
Digital inverter power source for professional welding tasks with
... The interior of the unit has been divided up into sections to prevent dust getting into the control and power circuits, improving reliability in adverse environments with conditions like high temperatures or dust. This is combined with a new construction that features channels providing a cooling ai ...
... The interior of the unit has been divided up into sections to prevent dust getting into the control and power circuits, improving reliability in adverse environments with conditions like high temperatures or dust. This is combined with a new construction that features channels providing a cooling ai ...
Wire wrap
Wire wrap is a method to construct electronic circuit boards. Electronic components mounted on an insulating board are interconnected by lengths of insulated wire run between their terminals, with the connections made by wrapping several turns around a component lead or a socket pin. Wires can be wrapped by hand or by machine, and can be hand-modified afterwards. It was popular for large-scale manufacturing in the 60s and early 70s, and continues to be used for short runs and prototypes. The method eliminates the design and fabrication of a printed circuit board. Wire wrapping is unusual among other prototyping technologies since it allows for complex assemblies to be produced by automated equipment, but then easily repaired or modified by hand.Wire wrap construction can produce assemblies which are more reliable than printed circuits: connections are less prone to fail due to vibration or physical stresses on the base board, and the lack of solder precludes soldering faults such as corrosion, cold joints and dry joints. The connections themselves are firmer and have lower electrical resistance due to cold welding of the wire to the terminal post at the corners.Wire wrap was used for assembly of high frequency prototypes and small production runs, including gigahertz microwave circuits and super computers. It is unique among automated prototyping techniques in that wire lengths can be exactly controlled, and twisted pairs or magnetically shielded twisted quads can be routed together.Wire wrap construction became popular around 1960 in circuit board manufacturing, and use has now sharply declined. Surface-mount technology has made the technique much less useful than in previous decades. Solder-less breadboards and the decreasing cost of professionally made PCBs have nearly eliminated this technology.