Find great deals for HAMEG HM 20mhz Oscilloscope. Shop with confidence on eBay!. Oszilloskop HM Equipment HAMEG GmbH, Frankfurt, build , 12 pictures, 11 schematics, 1 tubes, Germany, semiconductors, Service- or Lab. Finally got the dust off my Hameg I bought from a car boot sale about 2 years ago and forgot about it. I didn’t have the space, then moved to a.

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Spend some time and clean the front panel and knobs and start playing with it.

Is it a terribly bad idea to do the adjustment while the scope is naked and powered? The users who voted to close gave this specific reason: User manual here addition to previous link.

HAMEG Model Hm203-6 2 Channel 20 MHz Oscilloscope

Until now I fix some switch, create a new stop for one switch and replace 3 capacitors but now I don’t know what I can do with this noise. Someone gift me this oscilloscope and I fix some capacitators on it but I see this a bit weired.

The ones I’ve found are in German, and contain schematics only, no instructions. Home Questions Tags Users Unanswered.

HAMEG Model Hm 2 Channel 20 MHz Oscilloscope | eBay

There was an error while thanking. The oscilloscope still a bit dush outside and on switchs, I don’t clear all of the switches. So I assume the “calibrated position” must be recalibrated. Just remember that the outer metal part of both inputs and the TRIG. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.


Pay also attention to the red variable controls.

HAMEG HM 203-6 20mhz Oscilloscope

You can find the service manual here: Nothing scary, the scarier part was the amount of spider webbing inside: I play with my fingers on multimeters too and saw the resistance between both hands is lower then between 2 fingers on the same hand if I active my muscles also I do it with radio and my body act like a antenna if I disconect it is like a flat line, I think the form of the wave form will be more like a sinwave.

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Repeat this test with the other probe. Did you miss your activation email? I’m replacing the power line wired with a new one but will be in months untils I will have ground wires, I life in a old house with wires cover by sewing thread something like that. The configuration now is two crocodrile wires with a resistor of 2K2 between both red wires, this noise come mostly from the channel 1 on channel 2 I get some noise but a bit lower. I think something is wrong.

I know Distrelec hamegg some, but they are not alone. Z80user on December 04, Turn all three red variable controls fully counter-clockwise. It’s probably just as simple as adjusting the pot marked Y-gain.

At high speed 0.

I’m aware that exposed CRTs are lethally dangerous. INP sockets are connected together and they are also connected to the mains earth when you get that in your house. Hameg weird 50Hz signal Z80user on December 03, See it as a challange!

The procedure being as follows: Disconnect the power cable, and remove the scope cover; Place the scope 23, so the VR pot can be reached and the front panel still reachable ; Reconnect the power cable, turn the scope on, and supply the reliable 5 volts in my case it was through 230 digital Lab PSU, so I also rechecked with 1 volts, 2 volts, etc.


The problem is that there’s no mention on how to do this in the manual I was able to find. Is asking on how to fix a faulty circuit on topic?

So my questions are, Is there anything else to it, besides the pot adjustment? As suggested, I just tried it and calibrated it myself. Should be fine to power it on and adjust ahmeg with the cover off, just be careful not to short anything with a metal screwdriver and stay away from the HV supply to the CRT. Does it 66 like a square wave 2 divisions high and 1 wide per period? I think the missing knobs can be replaced by something from the ELMA range.

If I mix both channels and add the inverse of the second one I can cancel this noise. How to calibrate the vertical sensitivity of an old analog scope Hameg HM? This question appears to be off-topic. Jones play with the chair and see the spikes on the oscilloscope the noise of 50 Hz here is common but I think the form of the signal can be a bit strange.