Re: T1 Tuner Kit Control Board final check issues

Posted by Erik Tkal on May 24, 2021; 9:52pm
URL: http://elecraft.85.s1.nabble.com/T1-Tuner-Kit-Control-Board-final-check-issues-tp7669742p7669756.html

Hi Don,

Everything appears correct and in place, already used magnification to check, and individual resistors all seem to measure correctly.  I still think it's my multimeter in auto mode.  I went back and retried the initial test using manual ranging and if I set the range to 600K it shows a reasonable value.  I suspect the caps in the circuit are fooling it, will have to google that and see if there is an adjustment.  The second test still shows a bit high as well, but  if I measure from the *cathode* of D3 instead of the anode then I get a reasonable value as well; perhaps the difference in meter currents used for measurements is messing up due to the diode being in the circuit as the check is worded?

  Thanks and 73,
  Erik Tkal  -  W1QED



On May 24, 2021, at 15:32, Don Wilhelm <[hidden email]> wrote:

Since that is the case, check the value of the resistors and check out the soldering under magnification.

73,
Don W3FPR

On 5/24/2021 3:08 PM, Erik Tkal wrote:
> Hi Don,
>
> Nope, D3 and D4 are correct, and the LEDs check out per the test...


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