Hoffman Amplifiers Tube Amplifier Forum
Forum and Web site Stuff => Hoffman Amplifiers web sites => Topic started by: EL34 on July 19, 2021, 10:40:54 am
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The LED's listed in my store are on this page
https://hoffmanamps.com/MyStore/catalog/Lamps.htm (https://hoffmanamps.com/MyStore/catalog/Lamps.htm)
The hookup info for all the colors is listed below
5mm diameter LED's
Run them below 20 milliamps to be safe
A 100 ohm current limiting resistor works well with all colors if you are using the 6.3 volts heater circuit in an amp
Do not hook these up to a voltage without a current limit resistor
The long lead is the Anode +
Go to this page to use my handy current limiter resistor calculator
https://el34world.com/php/LedCurrent/LedCurrent.htm (https://el34world.com/php/LedCurrent/LedCurrent.htm)
(https://hoffmanamps.com/MyStore/catalog/images/IMG_0976.jpg)