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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 29th Jan 2016, 5:11 pm   #1
leslie5555
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Default 270mac

Hi I have this little brown component that I think is a capacitor, if it is what would be a suitable replacement thanks
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Old 29th Jan 2016, 5:44 pm   #2
elanman99
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Default Re: 270mac

Is it dark brown or light brown?

Ian
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Old 29th Jan 2016, 5:47 pm   #3
Herald1360
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Default Re: 270mac

Picture?

Does it read open circuit, short circuit or about 270 ohms with an ohmmeter?

What part of a circuit is it from?
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Old 29th Jan 2016, 5:48 pm   #4
Lucien Nunes
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Default Re: 270mac

Maybe a silly question, but if you don't know whether it's a capacitor, how do you know it needs replacement?
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Old 29th Jan 2016, 6:04 pm   #5
leslie5555
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Default Re: 270mac

Here it is. The reason I need to replace it is because I have had to replace the vol pot, and I cut this component off and its too short to reconnect, so I thought I'd just fit a new one. Its from a bush SRP31C
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Old 29th Jan 2016, 6:19 pm   #6
Lucien Nunes
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Default Re: 270mac

It's a ceramic capacitor. But, if it's as it is now, stick a bit of TC wire on the end and it'll probably be fine. Not sure about that 100k though!
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Old 29th Jan 2016, 6:21 pm   #7
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Default Re: 270mac

Or that 'orrible black and red Plessey....
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Old 29th Jan 2016, 6:23 pm   #8
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Default Re: 270mac

or that yellow Plessey electrolytic!
Its probably a 270pF ceramic capacitor as ,ucien has said, and I agree with him that a bit of solid core wire would solder onto the end. You might even get away with the same trick on the 100k underneath but for the cost of a new one I think i'd replace that.

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Old 29th Jan 2016, 6:24 pm   #9
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beat me to it turret!
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Old 29th Jan 2016, 7:33 pm   #10
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Default Re: 270mac

Quote:
Originally Posted by leslie5555 View Post
Its from a bush srp31c
It is indeed a 270pF capacitor.
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Old 29th Jan 2016, 8:39 pm   #11
leslie5555
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Thank you very much for all your help, I know there's a lot more to do to this amp, but you have helped me to start it , which allways seems to be the hardest part
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