I wouldn't want to call any phage "DNA-less", but it would be well worthwhile to look at Salmonella PLT-22, or
perhaps better a lytic variant, "22V". If you like, I'll be glad to send you these plus a few indicators (S.
typhimurium), as soon as I get back to Madison. I need hardly mention to you that typhimurium is supposedly pathogenic, but
so long as nobody eats the stuff, there should be no trouble,
P.S. For other reasons, I would recommend lambda on the K-12 indicator W-1485, but this might be technically more difficult,
though quite high titer lambda can be gotten by lwoffing. However, adsorption is a mess, while PLT-22 should go very cleanly.