Hi Heathkit fans, I read somewhere that audio quality can be improved by substituting Schottky hot carrier diodes in the prod det for the 1N34A's supplied by Heath. I went through my junk box and the best I can come up with is high speed silicon switching diodes type 1N914. I would thinik this would be better than the 1N34's but would appreciate some input on the pro's and con's. 73 Dick KF4NS