Tube DIY Asylum

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IR diode

64.118.23.33

Posted on September 15, 2014 at 19:37:57

Posts: 453
Location: Ontario
Joined: September 20, 2007

I need about 1.3 volt drop to bias a 6SL7 so the IR diode seems ideal. I just can't figure out if 1ma current will work despite having spent some time looking at LED data sheets. TIA for any help in clarifying this.

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RE: IR diode

Eli Duttman

20:26:13 09/15/14

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RE: IR diode

Eli Duttman

20:26:13 09/15/14

RE: IR diode, posted on September 15, 2014 at 20:26:13
Eli Duttman Audiophile Posts: 10455 Location: Monroe Township, NJ Joined: March 31, 2000	Instead of a LED, which may not function well passing only 1 mA., use a small NiMH cell. Charge the cell up before installing it in the project. Regular use keeps the cell fully charged. The 1 mA. of plate current is a nice trickle charge. Eli D.