Re: [Elecraft] K2 #7340 PreAmp Problem

2012-12-26 Thread Ray Spreadbury
something as well! 73 Ray G3XLG -Original Message- From: Don Wilhelm [mailto:d...@w3fpr.com] Sent: 25 December 2012 16:48 To: Ray Spreadbury Subject: Re: [Elecraft] K2 #7340 PreAmp Problem Ray, I would say that Q21 does not have adequate base voltage for it to conduct. The base voltage

Re: [Elecraft] K2 #7340 PreAmp Problem

2012-12-26 Thread Don Wilhelm
Ray, It is great to hear that you now have it working properly. Good find. 73, Don W3FPR On 12/26/2012 6:30 AM, Ray Spreadbury wrote: Hi Don I did a check on the voltage divider resisters as you suggested found that R75 read 82 ohms rather than the expected 680 ohms! I had accidentally put

Re: [Elecraft] K2 #7340 PreAmp Problem

2012-12-25 Thread Ray Spreadbury
December 2012 21:38 To: Ray Spreadbury Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2 #7340 PreAmp Problem Ray, Check every component in the Pre-Amp circuit, including the relay. Do you have the leads of T6 well stripped and tinned? If so, check to see that the leads are in the correct

Re: [Elecraft] K2 #7340 PreAmp Problem

2012-12-25 Thread Don Wilhelm
Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: 24 December 2012 21:38 To: Ray Spreadbury Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2 #7340 PreAmp Problem Ray, Check every component in the Pre-Amp circuit, including the relay. Do you have the leads of T6 well

Re: [Elecraft] K2 #7340 PreAmp Problem

2012-12-24 Thread Don Wilhelm
Ray, Check every component in the Pre-Amp circuit, including the relay. Do you have the leads of T6 well stripped and tinned? If so, check to see that the leads are in the correct holes. After that look critically at the solder pads for those components around the preamp circuit - look at