AKAI AM-U41 Light replacement for Power Indicator - diyAudio
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Old 15th October 2014, 12:01 PM   #1
oszkar is offline oszkar  Romania
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Default AKAI AM-U41 Light replacement for Power Indicator

Hello! I have an AKAI AM-U41 amplifier for what it's Power Indicator lamp has burned! What Led should I get as it's replacement? Thank you!
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Old 15th October 2014, 12:06 PM   #2
Johan41 is offline Johan41  Indonesia
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check this Amazon.com: Vintage Akai AM-U41 DC Stereo Integrated Amplifier, Amp Excellent!: Everything Else
Click the image to open in full size.
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Old 18th October 2014, 12:19 PM   #3
oszkar is offline oszkar  Romania
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Yep but what led power would fit in?
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Old 18th October 2014, 12:57 PM   #4
Mooly is offline Mooly  United Kingdom
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Bulbs that you want to replace with LED's ?

Any LED's are suitable electrically as long as you include a series resistor to limit current. I would suggest 2k2 as starting point. As to what fits physically... you will have to measure the bulbs and see what can be made to fit.
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Old 18th October 2014, 04:52 PM   #5
oszkar is offline oszkar  Romania
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I have not even dismateled yet the unit, but for what fits usualy in such aparatus are standard leds, now I am asking for what I can get for certain on Monday, 1,8V LEDs, what would be the entyre assembly consisting of?
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Old 18th October 2014, 06:07 PM   #6
Mooly is offline Mooly  United Kingdom
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Whether you use a "1.8 volt LED" which would suggest a red one or a white or blue at nearer 3 or 4 volts, it doesn't matter. You still need a suitable series limiter resistor.
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Old 18th October 2014, 06:54 PM   #7
oszkar is offline oszkar  Romania
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So a 2k 1/2w resistor in serries with a 1,8w LED would work?
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Old 18th October 2014, 08:02 PM   #8
Mooly is offline Mooly  United Kingdom
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Yes, depending on what the supply voltage is. Keep the LED current to below its max rating which is typically around 30ma. Many modern LED's are super bright on just a milliamp or so.

Experiment and get a suitable brightness to match the other panel lights.
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Old 20th October 2014, 02:10 PM   #9
oszkar is offline oszkar  Romania
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Ok, got the LED and the res.
LED is 1,8V
Resistance is 2,7K
Will get to work on it today
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Old 20th October 2014, 02:12 PM   #10
Mooly is offline Mooly  United Kingdom
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OK, good luck.
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