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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 15th Jun 2020, 6:26 pm   #1
Sean Mann
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Default Resistor value?

I am trying to repair as a novice a Sugden A48 Mk 2 int. amp and can see what looks like a resistor in one of the output amps, but it has an unusual marking. Printed on the beige carbon composite surface is: 1 nKH and that's all. Does anyone know what this means?

Thanks.
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Old 16th Jun 2020, 10:04 am   #2
snowman_al
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Default Re: Resistor value?

It would help us answer if you either post a picture or if you have the manual with parts location you may find what it is?
Have a look here:- http://www.valve-radio.co.uk/literat...ervice-manual/
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Old 16th Jun 2020, 4:32 pm   #3
G6ONEDave
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Default Re: Resistor value?

Looking around the internet, there are references to nH and uH as inductance values, so it suggests to me that the part in question is some type of coil or choke. A picture would help to confirm it.
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Old 16th Jun 2020, 8:57 pm   #4
barretter
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Default Re: Resistor value?

This Sugden amp has a Zobel network on the output consisting of a 1 ohm resistor in series with a 220nF capacitor. Is this possibly that 1 ohm resistor? Do you have a multimeter with which you could measure it? I can't see any inductors in the circuit diagram.
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