[dcl0]

They have been mentioned before on this site (that's how I found them), but I just want to add what a fantastic source Moyer electronics is for hard to get parts. Bill was able to find for me a sound trap, an assortment of peaking coils (from which to experimentally determine the best one) and a correct field coil speaker (the one that came with the set was a smaller substitute and was eaten by mice anyway). This is much better (and cheaper!) than bird-dogging Ebay for needed parts.