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Convert Miniature Lamps to LED on Stereo Receiver
Hi Everyone,
Here's the situation. I have a 20 year old amplifier made by Yamaha that has a number of buttons on the front that are lit by 14.5 V 80mA bulbs. The bulbs are not available any longer and I haven't been able to find suitable replacements. My question is this: Is it possible to substitute LEDs with a minor modification of the the source current, ie., can I go to Radio Shack and buy something that will enable the LED to work in this situation. I'm not sure but I suspect that the current is AC. If you have any ideas I would appreciate any guidance. Thanks. P.S. If you want to reply directly please remove the x-y-z from my email address. |
#2
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Convert Miniature Lamps to LED on Stereo Receiver
In article , canaanskier@x-y-z-
prodigy.net says... Hi Everyone, Here's the situation. I have a 20 year old amplifier made by Yamaha that has a number of buttons on the front that are lit by 14.5 V 80mA bulbs. The bulbs are not available any longer and I haven't been able to find suitable replacements. My question is this: Is it possible to substitute LEDs with a minor modification of the the source current, ie., can I go to Radio Shack and buy something that will enable the LED to work in this situation. I'm not sure but I suspect that the current is AC. If you have any ideas I would appreciate any guidance. Thanks. P.S. If you want to reply directly please remove the x-y-z from my email address. a 680 or 820 ohm resistor in series with the LED should do the trick, whether ac or not. If it's ac the "diode" will "flicker" - "thirty" times per second. |
#3
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Convert Miniature Lamps to LED on Stereo Receiver
In article ,
"canaanskier" wrote: Hi Everyone, Here's the situation. I have a 20 year old amplifier made by Yamaha that has a number of buttons on the front that are lit by 14.5 V 80mA bulbs. The bulbs are not available any longer and I haven't been able to find suitable replacements. My question is this: Is it possible to substitute LEDs with a minor modification of the the source current, ie., can I go to Radio Shack and buy something that will enable the LED to work in this situation. I'm not sure but I suspect that the current is AC. If you have any ideas I would appreciate any guidance. Thanks. P.S. If you want to reply directly please remove the x-y-z from my email address. Check out: http://www.allelectronics.com/cgi-bi...=320&type=stor e They have a number of lamps available. Al -- There's never enough time to do it right the first time....... |
#4
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Convert Miniature Lamps to LED on Stereo Receiver
vze1xj6z wrote in
: If it's ac the "diode" will "flicker" - "thirty" times per second. Nope, 60 times a second (assuming 60 Hz AC) or it's a very odd "diode" (LED). -- Regards, Soeren * If it puzzles you dear... Reverse engineer * New forum: URL:http://www.ElektronikTeknolog.dk/cgi-bin/SPEED/ |
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