Absolutely NOT!Audio amplifiers has a sync signal at 60hz, all the frequencys from 20hz to 20khz are sourced to a 60hz sync signal that comes out of the wall 120 VAC at 60hz
The 60Hz from the mains goes into a power transformer that steps down the voltage. Then it is full-wave rectified into 120Hz positive pulses and filtered. The 60Hz is not used to sync a 'scope unless the amplifier produces mains hum that you want to measure. Most amplifiers do not produce mains hum so they do not have a 60Hz sync output.Why do you think they use 60hz out of the wall? because hum sounds nice and easy to filter? it's a sync signal , external sync signal
Of course the signal and the sync must be multiples or the waveform will be free running. Usually the viewed signal provides sync to a 'scope.The frequencys don't have to be multiples in order to be synced
NO, the frequencies ARE NOT sync'd by the 60Hz ! The 60Hz has nothing to do with sync when viewing 20Hz to 20kHz frequencies. The signal you are viewing provides its own sync.You can take a function generator and sweep it from 20hz to 20khz and get STABLE waveforms on the O-scope right? and all those frequency's from 20hz to 20Khz are sync to 60hz right?
None of that is correct. 60hz is not sync in any way, it is just a convenient number of cycles per second, based on the mechanics of AC generators. Why would, or even HOW could all the frequencies be synced to 60Hz, when most of them are not multiples of 60Hz?Audio amplifiers has a sync signal at 60hz, all the frequencys from 20hz to 20khz are sourced to a 60hz sync signal that comes out of the wall 120 VAC at 60hz
Why do you think they use 60hz out of the wall? because hum sounds nice and easy to filter? it's a sync signal , external sync signal
The frequencys don't have to be multiples in order to be synced
You can take a function generator and sweep it from 20hz to 20khz and get STABLE waveforms on the O-scope right? and all those frequency's from 20hz to 20Khz are sync to 60hz right?
the frequencies ARE NOT sync'd by the 60Hz ! The 60Hz has nothing to do with sync when viewing 20Hz to 20kHz frequencies. The signal you are viewing provides its own sync.
Usually the viewed signal provides sync to a 'scope.
Why would, or even HOW could all the frequencies be synced to 60Hz, when most of them are not multiples of 60Hz?
the frequencies ARE NOT sync'd by the 60Hz ! The 60Hz has nothing to do with sync when viewing 20Hz to 20kHz frequencies. The signal you are viewing provides its own sync.
When the sync switch on a 'scope is set to the channel you are using then it takes the signal you are viewing, squares it with a Schmitt-trigger and uses the resulting pulse to sync the horizontal oscillator in the 'scope. The setting of the scope's sweep oscillator and the grid of lines on the screen can be used to determine the frequency of the signal.How does a signal provides it's own sync? and how do you find that sync frequency? How does it provide it's own sync to a scope?
No it is NOT. It is any frequency you want and is set by the big knob that adjusts its frequency. 60Hz has nothing to do with it unless the sweep and its sync is set for LINE! Line is the 60Hz electricity line.The Oscilloscope's linear sweep generator for the horizontal sweep generator is at 60hz
No. If you are viewing channel #1 then you set the sync to come from channel #1. 60Hz has nothing to do with sync!You're triggering off of channel#1 , so that makes it sync to 60hz
Yes, for viewing the signals for synchronous (the abbreviation "sync" again) AC motors and old fashioned black and white TVs.Switch the trigger to LINE , and it will trigger off of the 60hz line outlet out of the wall
No, it is completely different. Switching the sync trigger to channel #1 feeds the signal from channel #1 so it sync's the horizontal sweep.Now switch the trigger to Channel#1 , it's the same thing , 60hz right?
The viewed signal is used to sync the horizontal sweep oscillator. 60Hz has nothing to do with it!But you're saying the waveform is not in sync with 60hz , that the waveform it self is the external sync signal , how can that be?
The viewed waveform is squared into pulses then the pulses sync the horizontal sweep oscillator.The waveform triggers the Oscope?
Maybe the sync trigger switch on your 'scope is labelled SOURCE (of the sync). Then when it is set to channel #1 the sync comes from the squared signal viewed on channel #1.Only when channel#1 is SOURCED to the triggers input
When the sync switch on a 'scope is set to the channel you are using then it takes the signal you are viewing, squares it with a Schmitt-trigger and uses the resulting pulse to sync the horizontal oscillator in the 'scope.
60Hz has nothing to do with it unless the sweep and its sync is set for LINE! Line is the 60Hz electricity line.
The viewed signal is used to sync the horizontal sweep oscillator
The viewed waveform is squared into pulses then the pulses sync the horizontal sweep oscillator.
Maybe the sync trigger switch on your 'scope is labelled SOURCE (of the sync). Then when it is set to channel #1 the sync comes from the squared signal viewed on channel #1.
You are absolutely WRONG! See my attachment.Only on a solid state O scope , it uses schmitt triggers , not on a tube O scope
You can look at its schematic or connect the 'scope and view its sync.How do you tell if the circuit is a line-powered and line-synchronized circuits?
Yes but very few circuits are line synchronized.A line synchronized circuit has to use the LINE triggering at 60hz
You can look at its schematic or connect the 'scope and view its sync.rue , I agreeHow do you tell on a schematic that the circuit is a line synchronized circuit?
Of course. That is normal.My O-scope has a SOURCE mode , you can Source channel#1 or Channel#2 to eachother or to the triggers input
You are absolutely WRONG! See my attachment.
I posted actual detailed schematics of Schmitt triggers, not simple block diagrams.The Block Diagrams on an Tube O-scope is different than a Block Diagram of a Solid state Oscope, what are the differences?
Of course both are linear. The trace sweeps across the screen at a steady speed. The horizontal oscillator produces a sawtooth waveform on both of them.A tube Sweep Generator is different than a solid state sweep generator, how so? are they both linear or other?
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