Resistor identification assistance please..

Thread Starter

Eostre

Joined Dec 8, 2023
4
Hello, looking for assistance, I am used to identifying resistors by the colour code.
I have a pair without colour code, these were soldered though hole in a power supply PCB for a Bang and Olufsen television. The PCB is about 8 years old and the failure seems to be commonplace at this age.
Whilst burnt these meter at 9.5M Ohm, 9mm in length, 3mm in diameter.
Markings seem to be A139.9, I could be wrong about the A1as the two letters are joined. Maybe even an R and the dot (.) could be a burn mark! I attach an image, hoping someone can identify these.

Thank you in advance.
 

Attachments

MrChips

Joined Oct 2, 2009
30,518
Maybe it is 9.9M.
There appears to be a space between the 3 and the 9.
9.9 is an unusual valve, why did't they just call it 10.
 

ericgibbs

Joined Jan 29, 2010
18,668
Hi Eostre,
Looking at the resistor construction, I don't believe they are 9.9Mega Ohm.

Use an ohm meter to measure the least looking damaged resistor.

E
 

Thread Starter

Eostre

Joined Dec 8, 2023
4
Hi Eostre,
Looking at the resistor construction, I don't believe they are 9.9Mega Ohm.

Use an ohm meter to measure the least looking damaged resistor.

E
Thank you Eric, I metered them both at 9.5Mega Ohm. I found some on Mouser physical size being similar, going to try when these arrive.
 
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