We have a HP 651A Frequency generator with a shorted transistor Q2 and a burnt resistor R37 which tests at 4 ohms Can anyone advise the number or a sub for Q2 and value of R37 ... number on transistor reads like 850-0137.. also.Where would I find this info on the net etc. Alvin Radio & TV Centre Marystown, Nfld. ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/