That is really amazing. Rubber gasket and all, I love the robust knob. I wish manufacturers would go back to good durable knobs that were fun to twist hard.
There was a time when things where made to last, there wasn't a new model coming out every few months, making the previous one obsolete. Everything could be repaired, nothing was thrown away, except in extreme cases. I think if such a device was made today, it would cost a fortune, so no-one could afford it... but at least if you are making some sort of device for yourself you can use proper knobs and switches, and make it last a lifetime.
Felicitări. ca toți cei din domeniu, înainte de '89 era aparatul de bază pentru măsurători, dar pentru portabilitate luam mavo 2 cu mine, mavo 35 mai mult în atelier.
I was a shocked kid when I first saw the insides of a VOM. I really expected to see some complex circuitry, but mostly it was only a handful of resistors, no active components.
cum putem sa calibram aparatul?prin potenciometru RW2 si RW3?imi da o diferenta intre Sanwa 301TX si MAVO 35 si la rezistente,inteleg ca si aici trebuie calibrat.
I never noticed that, but I only counted 33... 8 for DC voltage; 6 for AC voltage; 5 AC current; 8 for DC current and 6 for resistance; what am I missing?
@@FesZElectronics You are right it has 33, I miscounted due to small computer screen and lack of attention. Maybe they counted the 75mV/50 uA as two ranges, and what about the dB scale? Is it associated with another range?.What about that DOHM input isn't it an extra range?
Honestly no; I did now though, I noticed in the manual that you need some sort of adapter to short-circuit the "*" and "+" input terminals, and the resistance is measured between this and the "D" input. I don't have a proper low resistance adapter, I will need to make it at a later time, so I couldn't perform a proper measurement. Also the manual states that this setup will drain about 0.12 A from the battery and I think I have some bad contacts somewhere since my needle was not very stable.
@@FesZElectronics you are right to use the device to do this measurement, you must have the right adaptor and you must clean the control switch in the coming period. I will publish a video about the analog measuring devices. I will discuss the method of manufacturing a copy of the adaptor and a copy of the same circuit with a twist i hope you like it by the way multimeter with low ohm range thay are rare so take care of this set my freind it a jowel god bless
I found the manual online somewhere, I will have to see if I still have the link and add it to the video description. The rotary contact wheel was on some plastic support spacers which shattered, the wheel its self was not affected, but it would no longer stay in alignment with the stationary contacts
That is really amazing. Rubber gasket and all, I love the robust knob. I wish manufacturers would go back to good durable knobs that were fun to twist hard.
There was a time when things where made to last, there wasn't a new model coming out every few months, making the previous one obsolete. Everything could be repaired, nothing was thrown away, except in extreme cases. I think if such a device was made today, it would cost a fortune, so no-one could afford it... but at least if you are making some sort of device for yourself you can use proper knobs and switches, and make it last a lifetime.
Felicitări. ca toți cei din domeniu, înainte de '89 era aparatul de bază pentru măsurători, dar pentru portabilitate luam mavo 2 cu mine, mavo 35 mai mult în atelier.
Thanks
I was a shocked kid when I first saw the insides of a VOM. I really expected to see some complex circuitry, but mostly it was only a handful of resistors, no active components.
Bravo pentru video!
se poate demagnetiza aparatul intr-un fel? treci degetul peste plasticul cadranului si acul o ia razna...
cum putem sa calibram aparatul?prin potenciometru RW2 si RW3?imi da o diferenta intre Sanwa 301TX si MAVO 35 si la rezistente,inteleg ca si aici trebuie calibrat.
It seems that it has 35 ranges on the selector knob, hence the "35"on the model number. Nice.
I never noticed that, but I only counted 33... 8 for DC voltage; 6 for AC voltage; 5 AC current; 8 for DC current and 6 for resistance; what am I missing?
@@FesZElectronics You are right it has 33, I miscounted due to small computer screen and lack of attention. Maybe they counted the 75mV/50 uA as two ranges, and what about the dB scale? Is it associated with another range?.What about that DOHM input isn't it an extra range?
Hi nice video thanks for posting tell me do you still have this multimeter
hello, yes I still have the multi meter, but I only use it on rare occasions since its so big...
@@FesZElectronics good have you ever use it to test low ohm res on the d ohm
Honestly no; I did now though, I noticed in the manual that you need some sort of adapter to short-circuit the "*" and "+" input terminals, and the resistance is measured between this and the "D" input. I don't have a proper low resistance adapter, I will need to make it at a later time, so I couldn't perform a proper measurement. Also the manual states that this setup will drain about 0.12 A from the battery and I think I have some bad contacts somewhere since my needle was not very stable.
@@FesZElectronics
you are right to use the device to do this measurement, you must have the right adaptor and you must clean the control switch in the coming period. I will publish a video about the analog measuring devices. I will discuss the method of manufacturing a copy of the adaptor and a copy of the same circuit with a twist i hope you like it by the way multimeter with low ohm range thay are rare so take care of this set my freind it a jowel god bless
Sounds like a good idea, I am curious to see your video, can't wait!
where did you find that manual? yours had that contact suport broken?
I found the manual online somewhere, I will have to see if I still have the link and add it to the video description. The rotary contact wheel was on some plastic support spacers which shattered, the wheel its self was not affected, but it would no longer stay in alignment with the stationary contacts