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Hifi amp signal flow question
Hifi amp signal flow question
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Old 17th January 2020, 02:37 AM   #31
Divad123 is offline Divad123
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Join Date: Sep 2019
Rayma - fantastic, I'll do close inspection of solder connection and tracks. I'll make a list and order the resisters and capacitors although I do have a wee stock of both but not the emitter resisters, I'll definitely have to order them.


I'll keep you posted. Should only take a few days for delivery if I order the parts tomorrow. Thank you.


Rick, thanks for the information - I'll try that when I have problems with my next project and need advice. Note - I said 'when' I have problems, not 'if' lol.
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Old 17th January 2020, 03:53 PM   #32
Divad123 is offline Divad123
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Sorry Rayma - before I order - the emitter resistors, is there any physical difference between them and normal resistors. The ones on the Rotel look like normal resistors with the coloured value rings but a bit larger than the other resisters on the PCB.

It's just in case I recive ordinary resistors, albeit of the required value, when I should have ordered proper 'emitter' ones.


Thank you sir
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Old 17th January 2020, 04:24 PM   #33
rayma is offline rayma  United States
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Quote:
Originally Posted by Divad123 View Post
the emitter resistors, is there any physical difference between them and normal resistors.
Usually they are wire wound but can be metal oxide, etc. Can you post close photos of them?
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Old 17th January 2020, 04:42 PM   #34
Divad123 is offline Divad123
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Default Photos of Left and right Emitter Resistors

HI Rayma,
I used Rick PA Stadel's method for uploading pics, hope it works here goes -
Attached Images
File Type: jpg Left 2.jpg (788.1 KB, 19 views)
File Type: jpg Right 2.jpg (734.0 KB, 19 views)
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Old 17th January 2020, 04:54 PM   #35
rayma is offline rayma  United States
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Quote:
Originally Posted by Divad123 View Post
HI Rayma,
I used Rick PA Stadel's method for uploading pics, hope it works here goes -
Those are metal oxide types. Get a wattage that is the same or larger physical size.
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Old 17th January 2020, 05:46 PM   #36
Divad123 is offline Divad123
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Thanks Rayma,
Will order this evening.

Cheers
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Old 17th January 2020, 05:48 PM   #37
rayma is offline rayma  United States
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Quote:
Originally Posted by Divad123 View Post
Will order this evening.
Those are likely to be 2W or 3W resistors, order the same physical size or larger.
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Old 17th January 2020, 08:21 PM   #38
Divad123 is offline Divad123
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Will do Rayma - thanks for the help with the resistor question. Will get back to you shortly


Cheers
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