Don I appreciate your comment. I decided to continue building.
My DMM may be too old. His age is over 20 years or so, Hi Don Wilhelm wrote: > Aki, > > At D2, the AC voltage could be power supply ripple, but the regulators > should smooth that out. > > Because you show about the samee AC voltage at all these points, the most > likely problem is your DMM. You might confirm that by turning the power > switch to OFF and checking the AC voltage at D2. If you still find the same > 150 mv ripple, it is most likely hum pickup on your DMM. > > I would continue building and recheck later after locating another DMM that > you could borrow. > > 73, > Don W3FPR > > >>-----Original Message----- >> >>Finished KX1 assemly part-1 and made test-1. >>All check has been OK except following. >> >>Voltage check 2 in the manual says that ac voltage is under >>20mv AC rms at D2(A/K), U1 Pin1 and U3 Pin6. >>My old and cheap DMM shows about 150mv at these point. >>Checked C7, C10, C38 but could not find any miss-installation. >> >>I have not any other DMM. >>Can I go to assembly part-2 ? >> >>Any suggestion will be appreciated. >> >> >>73 de aki, ja1nlx >> > > > -- 73 de aki, ja1nlx [EMAIL PROTECTED] http://www.asahi-net.or.jp/~yy7a-ysd/ http://ja1nlx.exblog.jp/ _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
