Resistor - Videokarma.org TV - Video

timmy · #1 10-01-2021, 05:08 PM

I hate to ask this but what is .482 for a resistor is this k or Meg

Electronic M · #2 10-01-2021, 05:35 PM

Depends on the vintage of the set. Solid state gear will use .47ohm resistors as fuses and or current sensing devices. Tube gear won't use a value that low.

Checking the schematic against the part in the set can help clear up confusion in cases like this.

timmy · #3 10-01-2021, 05:44 PM

I thought it was 500k but depending on the dvm it will show Meg

old_tv_nut · #4 10-01-2021, 07:05 PM

Are you saying .482 is written somewhere, or that is the reading on your digital meter?

If you are using a digital meter, it should indicate whether its reading Megohms either with a symbol in the display or a knob setting.

I think using the decimal point (.482) would be odd for k ohms (it would just read 482 ohms), so this would be either ohms or megohms.

timmy · #5 10-02-2021, 10:31 AM

The digital meter shows Meg

old_tv_nut · #6 10-02-2021, 11:57 AM

Quote:

Originally Posted by timmy

The digital meter shows Meg

So then it's 0.482M = 482k

zeno · #7 10-03-2021, 09:47 AM

Hint
When measuring high ohm resistors lift one end & use clip leads
to test it. If you hold on both ends you add your body resistance
in parallel, throwing off your measure.

73 Zeno

LFOD !

DavGoodlin · #8 10-07-2021, 02:40 PM

Quote:

Originally Posted by zeno

Hint
When measuring high ohm resistors lift one end & use clip leads
to test it. If you hold on both ends you add your body resistance
in parallel, throwing off your measure.

73 Zeno

LFOD !

I know some guys will measure them in-circuit and not touching probes, particularly RCA tube sets with PWB-mounted resistors, then clip from top and replace if it measures other than marked.