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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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Thread Tools |
10th Jul 2019, 9:21 pm | #1 |
Triode
Join Date: Aug 2018
Location: Kauhava, Finland
Posts: 37
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AVO CT 160 digital panel current meter
Mikko hey. I'd like to try the digital panel meter through the front panel A1 and A2 anode connectors. How big resistor I have to put in to avoid the overvoltage relays going on. With an analog panel gauge, this works great. But I would like a digital one.
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11th Jul 2019, 8:05 pm | #2 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,173
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Re: AVO CT 160 digital panel current meter
Hi Mikko, for initial tests it would be as well to use a separate battery powered DVM.
Drawing DVM meter supplies from mains or the tester itself is full of dangers due to possible common mode problems. Note that this can also be a problem if you take a digital output to a computer for data logging/ curve tracing. Ed |
11th Jul 2019, 9:44 pm | #3 |
Triode
Join Date: Aug 2018
Location: Kauhava, Finland
Posts: 37
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Re: AVO CT 160 digital panel current meter
Thanks. The purpose would be to use a link power meter with its own 5v battery. What size would it be good to put in the resistance that the measurement would remain true?
https://www.ebay.com/itm/DC-100mA-Re...MAAOSwOeVZzl-y |