This kit for the Dynaco FM3 allows you to take out the dial bulb and replace it with a much more efficient LED. This takes some strain off the transformer and the unit will run cooler. 

Everything is included to build and install the LED board. I have included a frosted 4000K white LED and a 3K multi-turn pot. If you want to change the colour you can use what ever colour of LED you want and set it to the desired brightness.

Due to feedback I have received regarding the brightness and colour of the LED I have changed to a 3K pot so you can turn the brightness down to very dim if you want. I have also switched to a cool white 4000k frosted LED to better match the original bulb colour. 

There are test points on the board so you can easily set the resistance. I will include easy to follow instructions. 

If you want fixed brightness see my other auctions.