[Elecraft] T1 Tuner Kit Control Board final check issues
Erik Tkal
etksubs at gmail.com
Mon May 24 17:52:00 EDT 2021
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 <don at w3fpr.com> 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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