Help with the size of a inductor

I and restoring a amp section of this grundig and found why the left side is cracking and not making sound. But not sure what this part is it has a wire wound exterior and that part of it is broke into two sections. I have a schematic and circled it in red below help please

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Hello Mark,

since this is a stereophonic amplifier (model Grundig NF10), the right channel should have the same inductor fitted. To determine the needed value, you can measure the inductance (e.g. at a measuring frequency of 1 kHz) with an inductance bridge or a LCR meter. To do so, carefully de-solder one end of it from the circuitry.

This inductor (Grundig part-# 9218-103) is part of the negative feedback circuit.

Please show also a picture how this inductor looks.

Thanks,
Bernhard

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I'll have to order a LCR meter and measure the other side. 

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Hello Mark,

I am repairing a KS-590 for a Friend. I already took out the NF-10 (Amplifier) and it's now working.

I wanted to take out the HF-10 (pre-amp & tuner); however have not figured out to remove it.
Tried pulling it out from the top, and it only pulled off the dial/key/indicator screen, with the turn buttons blocking taking it off?

Do i need to open the KS-590 from the back to get to the HF-10 (Tuner).

How did you remove the HF-10 from the KS-590?

Regards,

Zomerbier

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