Interesting Universal Bridge
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From: NSM on 10 May 2005 19:19 Just picked up an interesting universal bridge "RLC 10" on eBay. I cannot find a maker's name anywhere on this. It is similar to an H&B Inkavi and Pontavi combined, but uses transistors to generate the AC test signal and drive a center zero meter. There is no manual with it, just basic instructions on the back in Czechoslovakian, Russian and German. It uses an unusual 3 Volt battery, about 75 mm long and 20 mm diameter or square. It has an AC and a DC test button and a dissipation null control for inductance measurement. Ranges: 10 mH, 100 mH, 1 H 0.1 Ohm, 1 Ohm, 10 Ohm, 100 Ohm, 1 KOhm, 10 KOhm (DC) 10 Ohm, 100 Ohm, 1 KOhm, 10 KOhm, 100 KOhm (AC) 100 pF, 1 nF, 10 nF, 100 nF, 1 uF It has a scale from 0.5 to 20 and it can also do comparisons between components and show the deviation from the external standard. One thing I cannot figure out is how to use the dissipation control since the center zero meter is phase sensitive - goes left to right and you can null the meter at various combinations. Suggestions? Adjust for the lowest or the highest inductance? -- N
From: Franc Zabkar on 11 May 2005 03:24 On Tue, 10 May 2005 23:19:13 GMT, "NSM" <nowrite(a)to.me> put finger to keyboard and composed: >Just picked up an interesting universal bridge "RLC 10" on eBay. I cannot >find a maker's name anywhere on this. It is similar to an H&B Inkavi and >Pontavi combined, but uses transistors to generate the AC test signal and >drive a center zero meter. There is no manual with it, just basic >instructions on the back in Czechoslovakian, Russian and German. If you can't understand the instructions, try posting a photo of them on your webspace. - Franc Zabkar -- Please remove one 's' from my address when replying by email.
From: NSM on 11 May 2005 13:42 "Franc Zabkar" <fzabkar(a)optussnet.com.au> wrote in message news:7un281hki65c4b4p58702guusm4jo5co1s(a)4ax.com... > On Tue, 10 May 2005 23:19:13 GMT, "NSM" <nowrite(a)to.me> put finger to > keyboard and composed: > > >Just picked up an interesting universal bridge "RLC 10" on eBay. I cannot > >find a maker's name anywhere on this. It is similar to an H&B Inkavi and > >Pontavi combined, but uses transistors to generate the AC test signal and > >drive a center zero meter. There is no manual with it, just basic > >instructions on the back in Czechoslovakian, Russian and German. > > If you can't understand the instructions, try posting a photo of them > on your webspace. I Babelfished them - got the sense of them OK, but they're too brief to cover the full use of this device. -- N
From: NSM on 11 May 2005 18:29 "Franc Zabkar" <fzabkar(a)optussnet.com.au> wrote in message news:7un281hki65c4b4p58702guusm4jo5co1s(a)4ax.com... > On Tue, 10 May 2005 23:19:13 GMT, "NSM" <nowrite(a)to.me> put finger to > keyboard and composed: > > >Just picked up an interesting universal bridge "RLC 10" on eBay. I cannot > >find a maker's name anywhere on this. It is similar to an H&B Inkavi and > >Pontavi combined, but uses transistors to generate the AC test signal and > >drive a center zero meter. There is no manual with it, just basic > >instructions on the back in Czechoslovakian, Russian and German. > > If you can't understand the instructions, try posting a photo of them > on your webspace. In German: BATTERIE 3V BEREICH MESSUNG EINGANGS KAPAZITýT 6 pF SUBTRAHIEREN MIT WECHSELSTROM DIE INDUKTIVITýT MIT GLEICHSTROM DIE OHMKOMPONENTE ARBEITEN SIE NACH DER BEILIEGENDEN GEBRAUCHSANWEISUNG ABGLEICH DER OHMKOMPONENTE In English(-like): BATTERY 3V. RANGE. MEASUREMENT. INITIALLY CAPACITY 6 pF SUBTRACTING. WITH ALTERNATING CURRENT INDUCTANCE. WITH DIRECT CURRENT THE OHM COMPONENT. WORK AFTER THE ENCLOSED OPERATING INSTRUCTION. ALIGNMENT OF THE OHM COMPONENT.
From: Franc Zabkar on 12 May 2005 04:26 On Wed, 11 May 2005 22:29:43 GMT, "NSM" <nowrite(a)to.me> put finger to keyboard and composed: > >"Franc Zabkar" <fzabkar(a)optussnet.com.au> wrote in message >news:7un281hki65c4b4p58702guusm4jo5co1s(a)4ax.com... >> On Tue, 10 May 2005 23:19:13 GMT, "NSM" <nowrite(a)to.me> put finger to >> keyboard and composed: >> >> >Just picked up an interesting universal bridge "RLC 10" on eBay. I cannot >> >find a maker's name anywhere on this. It is similar to an H&B Inkavi and >> >Pontavi combined, but uses transistors to generate the AC test signal and >> >drive a center zero meter. There is no manual with it, just basic >> >instructions on the back in Czechoslovakian, Russian and German. >> >> If you can't understand the instructions, try posting a photo of them >> on your webspace. > >In German: > >BATTERIE 3V >BEREICH >MESSUNG >EINGANGS KAPAZITýT 6 pF SUBTRAHIEREN >MIT WECHSELSTROM DIE INDUKTIVITýT >MIT GLEICHSTROM DIE OHMKOMPONENTE >ARBEITEN SIE NACH DER BEILIEGENDEN GEBRAUCHSANWEISUNG >ABGLEICH DER OHMKOMPONENTE > >In English(-like): > >BATTERY 3V. >RANGE. >MEASUREMENT. >INITIALLY CAPACITY 6 pF SUBTRACTING. >WITH ALTERNATING CURRENT INDUCTANCE. >WITH DIRECT CURRENT THE OHM COMPONENT. >WORK AFTER THE ENCLOSED OPERATING INSTRUCTION. >ALIGNMENT OF THE OHM COMPONENT. I see what you mean. Why not experiment with a known inductance and a series resistor, say 0.1 ohm or several of them in parallel? Try different combinations and observe the behaviour of your meter. - Franc Zabkar -- Please remove one 's' from my address when replying by email.
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