20 Professional Electrical Panel Wiring Techniques Images
Related photos in this diagram:
Other recommended diagram ideas:
Electrical Panel Wiring Techniques - The format is pretty instantly-forward. The massive heat-sinked metallic can in the direction of the bottom is the rf generator assembly (yig tuned oscillator). The power deliver segment is placed off the primary board at the black warmth sink at the rear of the enclosure. From the photograph to the proper, you could see the frenzy button rod runs from the front panel all of the manner to the back for the mains transfer. This become a completely regular construction approach returned then in order that the high voltage mains wiring may want to stay in the back and did no longer should run all of the way throughout the case.
Relatively sufficient although, it did electricity up and its output signal frequency and variety have been pretty much spot-on assuming my hp 5350b changed into accurate. Unfortunately, when i left it on for about an hour to heat up, the frequency show at the wavetek 907 went over variety (displays a “1” regardless of the frequency putting). Whilst it still output a signal, the adjustable frequency variety dropped from 6.Nine ghz – 11.05 ghz to 6.9 ghz – 7.9 ghz. Also, i observed that the unit not generate an awful lot heat and began to quiet down. Considering the fact that wavetek 907 makes use of a yig tuned gunn oscillator, for the yig oscillator to characteristic well the operating environment have to be maintained at a fantastically excessive temperature. So given the signs, i think that the % heating element within the yig oscillator become likely failing.
Below is photograph of the power supply phase (the only at the left). Wellknown three terminal regulators are used to generate all the required rail voltages and the larger transistor is used to satisfy the better contemporary call for of the yig p.C heater. You may also see a thermal switch established on the same heatsink in the direction of the lowest. This thermal switch is used to cut off the main energy should the strength supply become overheated. Those two pics under are the pinnacle and backside view of the primary pcb (click on to look the excessive resolution version). The date codes on the components additionally indicate that it became built sometime in 1980. There are a few unpopulated foot prints on the board and possibly they're left for alternatives (or will be for the 907a model).