Part identification for HMV Stereo 1010

[ShantaramChari]

I recently came across a HMV Stereo 1010 Turntable. I am currently restoring the player but the amplifier section has one part blown in it. Can anyone help in identifying the part. This player has 2 separate boards for, one for each channel. I have attached one good and one bad component photo.

 

[analogadikt]

The part # is printed on the pcb, it is obscured in your photos. If you can find the schematic, you shall know what it is.
R is visible in the first pic,that means it is a resistor. Although I haven't seen a resistor like that. The second one that is in good condition clearly shows the Colour code, check that with a multimeter to confirm it is a resistor. If you don't know colour reference, look up "resistor colour codes" online and match the good one to that. Replace both resistors.

Regards

 

[ShantaramChari]

The part # is printed on the pcb, it is obscured in your photos. If you can find the schematic, you shall know what it is.
R is visible in the first pic,that means it is a resistor. Although I haven't seen a resistor like that. The second one that is in good condition clearly shows the Colour code, check that with a multimeter to confirm it is a resistor. If you don't know colour reference, look up "resistor colour codes" online and match the good one to that. Replace both resistors.

Regards

On the pcb it's printed as 'R' which indicates a resistor. But never seen a resistor like this before. According to the colour code it shows 200 ohms. Can it be a NTC?

 

[reubensm]

That is an old school thermistor. I used these in my AC187/AC188 germanium transistor amplifier builds, back in the day. They were available in various denominations like 100 ohms, 150 ohms, 250 ohms, etc. You can use the 2000 ohms resistor setting on the multimeter and measure the resistance of the good one (Potentially after taking it out of the PCB as the thermistor is likely to be wired in parallel with that preset for bias adjustment. Letting it remain in the circuit may result in incorrect readings).

I recollect Dad correcting one of my builds wherein I had the thermistor mounted like the one in the HMV 1010 record player. He explained to me that a thermistor should be in contact with the power transistor heatsinks in order to function as intended, and thereafter I mounted it, in contact with the heatsinks.

 

[reubensm]

+ the value seems to be 200 ohms but good to recheck.

 

[ShantaramChari]

That is an old school thermistor. I used these in my AC187/AC188 germanium transistor amplifier builds, back in the day. They were available in various denominations like 100 ohms, 150 ohms, 250 ohms, etc. You can use the 2000 ohms resistor setting on the multimeter and measure the resistance of the good one (Potentially after taking it out of the PCB as the thermistor is likely to be wired in parallel with that preset for bias adjustment. Letting it remain in the circuit may result in incorrect readings).

I recollect Dad correcting one of my builds wherein I had the thermistor mounted like the one in the HMV 1010 record player. He explained to me that a thermistor should be in contact with the power transistor heatsinks in order to function as intended, and thereafter I mounted it, in contact with the heatsinks.

Thanks for your reply, checked it up and yes it's showing 200 ohms. Will order a new one replace both of them.