The ECG 109 is a germanium gen purpose - like the old 1N34. The 1N914x crosses to a 519 -- 73, Dave - W3NP Ft. Ashby, WV Sponsored by the City of Tempe Listserver Submissions: heath at listserv.tempe.gov Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'" Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"