09-14-2014, 06:41 PM
A 1/2 watt is going to be pretty close depending what tube you use for the output. 112A or 71A are the tipical ones. Any small sized output xformer will work fine. For the most part the load here is going to be about 3k for the 71A and 10K for the 112A. Am using a 112A in my two tube Crosley 51. Sound great with -9v bias.
GL
Terry
GL
Terry