Author Topic: Bench DMM from Portable Conversion (Aneng Q1 for $50 All)  (Read 4322 times)

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Offline MechatrommerTopic starter

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Bench DMM from Portable Conversion (Aneng Q1 for $50 All)
« on: June 26, 2019, 12:29:35 am »
long story short.. bought it last year the moment people went frantic. every con dave mentioned in the video is the pro for this, so i know this is a perfect candidate. once arrived i tried to make the conversion by breaking out the lcd using flying wires, failed, not sure what went wrong, some synchronization issue? or impedance mismatch of zebra strip? who knows. got feed up and put it in plastic in the store until few days ago, because browsing Fluke 8840 or Agilent 34401, their depth are too much for my bench, so got no option have to revive this project since my rubidium need repairing requiring this... i went different route after lcd breakout failure, i decided to cut the pcb into 3 pieces and reconnect traces where apropriata. add the ac 50hz transformer old part laying around, 12v fan and 3.3v dc ldo psu, glue and cut here and there,and additional sleep prevention pic10f206 circuit that presses appropriate button in every minute (pull low to GND) voila! now i have bench dmm that wont sleep on me in perfect form factor and size for about guesstimated $50 + a sandwich box to put probes acc etc thanks to Uni-T for the innovative idea... enjoy the pics fwiw.
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 
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Offline windsmurf

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Re: Bench DMM from Portable Conversion (Aneng Q1 for $50 All)
« Reply #1 on: June 26, 2019, 12:32:56 am »
Wow good job!  ;D :-+ :-/O :-DMM

But I'd redo the input jack faceplate  8)
 

Offline MechatrommerTopic starter

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Re: Bench DMM from Portable Conversion (Aneng Q1 for $50 All)
« Reply #2 on: June 26, 2019, 12:51:00 am »
:-+ i think there's nothing wrong with input jack as the functions are still the same, only have to turn head 90 degree to the side to read the labels :P, and i dont have that kind of recessed and protected/covered bnc input as replacement. i think i need to erase some labelling though such as the "auto power off" because its not auto power off anymore. i dont want to spend too much time on this so i'll reuse everything that i can.
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 


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