David, All those voltages are about right for a VFO that is not oscillating. Do not be concerned about a voltage that is only a few 10s of millivolts different from the chart. Actual readings will vary a bit from DMM to DMM.
The important voltage now is the gate of Q18 - it should go negative once some RF is developed in the gate circuit. The best I can tell you right now is to turn to the schematic - RF Board Sheet 1 of 4 and look at the VFO components in the upper right quadrant of that page. Check the placement and value of each of those components. If you have trouble physically locating any component, the Parts Placement diagrams can be helpful. Be certain the diodes are oriented correctly. Re-check T5, or even rewind it. Be certain the T5 leads are well tinned and soldered. 73, Don W3FPR > -----Original Message----- > > Double-checking DC voltage measurements on 3 transistors. > > Item Measured Chart > Q18 > --- > G: 0.00 -1.0 !! > S: 1.97 ** 2to3 > D: 7.97 6.3 ! > > Q17 > --- > G: 2.16 * 2.2 > S: 0.00 0.0 > D: 1.97 ** 2to3 > > Q16 > --- > E: 0.00 0.0 > B: 0.55 0.6 > C: 2.16 * 2.2 > -- > David Dawson > _______________________________________________ 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
