Log ratios occur often in nature...
JR
JR
Factor 10 is for power, whih is a second-order variable (product of voltage and current). Factor 20 is appropriate for direct variables.It is interesting that you used a coefficient of 20 and not 10 for the calculation of the relationship between age and earnings.
I use DC as a stimulus to check an attenuator (often stepped) rather than tone then use the 8050's DC dB and relative modes to read attenuation directly in dB.I checked it, and although the 8060A can calculate dB DC, I cannot think why I would need it.
On the DC scale I am testing blood pressure (+/-V) and nervous system (various) voltages to numerical values not converted to dB. I'll re-read the 8050A post.
"The plus rail is down 3 dB" said me never.
Your post reminds me of this multi-mode analog meter:The product I would like to buy apparently does not exist.
An auto-ranging DVM that displays simultaneously the DC content (average DC), the AC rms value and the peak-to-peak AC value. No need for AC average then.
The missing link netween DVM and 'scope.
I remember taking apart the LCDs and cleaning them in the case it might have been a conductivity issue, no dice..It's deeper than the ribbons. If it's like the '60A the LCD is connected to the PCB with a conductive rubber spacer that needs to have it's contacts cleaned. Have not had to do that often, but it works.
Mike
Actually I was considering building the meter I described. I came to a somewhat similar arrangement except that I want the triple display (I'm not interested in Average).Your post reminds me of this multi-mode analog meter:
https://proaudiodesignforum.com/forum/php/viewtopic.php?f=12&t=688
The charge light is the visible difference between the 8050A and the 8050A-01 (battery-powered).The 8050A has a version with a battery charge light and one without. I think that means one has a battery and one doesn’t? For common to be floating do you need the battery version?
74 y/o abbey? nice! I just turned 38.dB is just a relative way of expressing ratios. If you make $70k a year and your neighbour $100k, you're making 3dB less than him. It doesn't have to be a sinusoidal value.
If you're 37, you're 6dB younger than me.
Thanks!Happy birthday Flipper
http://mrmodemhead.com/blog/gallery/fluke-8050a-led-conversion/I remember taking apart the LCDs and cleaning them in the case it might have been a conductivity issue, no dice..
So first guess is 2Vac, but since that's avg. and peak must be accounted for, it would be the top, second formula, restated to solve for A. So A= 2Vac * (2/pi) = 1.27Vac. I'd say 1.25Vac to be safe.Here is a Quora type question intended especially for those members who think that DIYers do not need oscilloscopes, but that a DMM is sufficient.
The linear power supply consists of a transformer, a full-bridge rectifier, a capacitor and a 7812 regulator. The regulator needs a minimum ratio of Vin-Vout=3V to work properly.
Average DMM in DC position measures 17V at the reg input. What is the maximum voltage that can be measured in the AC position at the reg input for the regulator to work correctly?
View attachment 96514
Pi is not relevant here.So first guess is 2Vac, but since that's avg. and peak must be accounted for, it would be the top, second formula, restated to solve for A. So A= 2Vac * (2/pi) = 1.27Vac. I'd say 1.25Vac to be safe.
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