Saturday, February 1, 2014

DIY - Reinstating original green backlit after lamp replacement on Audiolabs

Been some time since replacing the original backlit lamps on my Audiolab(s). 

Must admit - I really missed the original green glow of backlit(s). Currently the available replacements does not produce the original green glow.

As I had open up the 8000CDM (awaiting replacement tray gear parts), decided to experiment with alternatives - drawing inspirations from my Sansui TU-9900 eg using a coloured filter of sorts. 

I decided to try using coloured drinking straws.

Sections of drinking straws for the experiment

After cutting them to a suitable length (and trimming the larger straw), I inserted the "candidate(s)" into the lamp holder areas to test, a set at a time - as per below.


With coloured straws inserted

Thickness of the thinner straws were simply too much for the lamps. Hence the results made the display hardly legible - must be within a meter???

Results from the larger straw were most pleasing but dimmer than the original. Definite improvement over the ugly yellow-ish alternative.

8000CDM display after adding filters

8000T display after adding filters

Will continue to search for a better alternative in the future ... until then, these will do just fine!

2 comments:

  1. Hi,
    Did you use the orginal bulbs for the display?

    I have a bag of them here, and as I have the CDM in bits I'm thinking about replacing the three broken ones.

    While taking the CDM to bits I did manage to seperate the power lines from the daughter board the bulbs site in.

    Should I just solder these two wires back in place or shoud I add a connector in?

    I spotted a reference on a board to someone replacing the bulbs with LEDs and the correct resistor - would you have any thoughts on that?

    Thanks

    Adrian

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  2. Sorry for the belated reply.

    LED(s) are the way to go. Less hassels and you can reinstate the original green glow since they stop producing the original green bulbs.

    I have yet to replace those bulbs. Hence I can not comment on which would be better for you. Maybe you can experiment and post a feedback here

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