JVC a_k22 restoration

[adelo]

Hi to all! I started restoring an old amplifier (JVC a_k22). Could someone help me with the specifications of the thermistors I have highlighted?

 

[redk9258]

Are they bad?

 

[adelo]

Yes, one of the two is broken.

 

[p4spooky]

Carefully remove the one that is not broken. Let it come to room temp after desoldering. Measure the resistance. Put your soldering iron CLOSE to the thermistor, if its a PTC resistance will rise. NTC - the resistance will reduce. Carefully dip the thermistor in hot water (85C - 100C) and measure resistance. Post the temperature and resistance values.

 

[adelo]

Thanks for the reply, I'll give it a try as soon as I get time.

 

[adelo]

Hello! I return to the above topic

After measuring the thermistor at room temperature I found 2.4 kohm.
After heating it to about 80 degrees celsius then I measured 100 ohm.
Based on the above, what should I choose for replacement?