Download HAMEG HM OSCILLOSCOPE UM service manual & repair info for electronics experts. Find great deals for HAMEG HM Oszilloskop 20mhz digital Storage. Shop with confidence on eBay!. I have been experiencing a problem with my Hameg HM oscilloscope. It was working correctly then the trace suddenly went back to the left.

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As a result of intermediate storage, the reduction of trace brightness, normally observed at higher fre- quencies, is avoided. This is the case with bursts, for instance. For amplitude measurements, the variable control on the input attenuator switch must be in its calibrated position CAL.

When recording square-wave or pulse-type signal voltages, it must be noted that jm harmonics must also be transmitted. The plotter drive voltages are O. Signal voltages applied at the Y-input are not short-circuited in position GD. If it is necessary to employ the full dot density of Channel I alone, two buttons 2.

The series impedance of the probe pro- vides a certain amount of protection for the vertical amplifier.

Full text of “Hameg: hm”

Vertical amplifier mode Channel I: Please enter 6 numbers for the Postal Code. If this small knob is pulled out, the oscilloscope hj over to X-V-mode. It is recommended when checking the operating voltages also to check their hum or interference voltages. The single sweep mode is not applicable in analogue oscilloscope operation.


Oszillograph HM Equipment HAMEG GmbH, Frankfurt, build 19

The two channels are scanned separately – but simultaneously. The exposed high voltage contact of the tube must then be short circuited against the chassis with, for instance, a long insulated screw driver, in which case the wired tube socket should be left on the tube base. In this way, two different signals can be stored in each channel independent of one another and called up and compared with the two signals stored in memory 1.

Accurate evaluation of such signals is only possi- ble up to approximately 2 MHz repetition frequency. Strictly speaking, trigger- ing should be external with modulation frequency from the AF generator or a demodulator. Battery-powered or AC supply operated optional. Influence on the leading edge T5: Trigger signal inputto TRIG.

When starting work, pay attention that none of the buttons is pushed in. It is superfluous since the stored image does not flicker even at low frequencies. If a stored X-Y mode image is present, the fine time control knob must also be pulled out or pushed in with the memory switchover.


Stored waveforms may be recorded using a chart- or X-Y recorder. The time resolution poses no problems. The clear advantage over ordinary probes are field replaceable parts and the HF-compensation feature on the 1 0: Decreases Y sensitivity by a factor of 2.

Learn more – opens in a new window or yameg. Composite video signal with line frequency: The latter applies both for analog and memory mode. X10 pushbutton switch T race magnifier – expands the X-axis by a factor of The denser the dot sequence which simu- lates the signal shape, the more accurately the memory dis- play hameh be evaluated.

Two stored waveforms can also be displayed simultane- ously above one another.

HAMEG Hm208 Oscilloscope 20mhz Digital Storage

Otherwise there is a possibility in the AT position automatic triggering that the triggering point may change or that triggering may not occur at all with signals without zero transition. Pressing the CHOP, button has no effect. It is unimportant, on the other hand, if the first or second memory is used for channel 1.