Does anyone know if 6hs8 tubes are an acceptable substitute for the 6hs6 required for the HW 101? Thanks Rob Listserver Subscription:listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'" Listserver Submissions: heath at listserv.tempe.gov Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"