[Elecraft] K1 RF board resistance, voltage, L1
Mark Fickett
[email protected]
Wed Apr 23 16:09:00 2003
Hello,
I've just finished with building the transmitter portion of the board, and have run across a resistance check and a couple voltage checks that are off, but I can't (yet) find the problem (I've checked solder joints, resistor positions, diode directions).
Resistance (p. 45): ground (-) to J8 pin 5 should be 90-110k, but I'm getting 1.5k.
Voltage (p.46): all from ground (-), with about 12.8v in (the supply is rated 13.2v, but the K1 says it's 12.8).
U8 pin 1 should be 1.3-1.5, and is 1.05
U8 pin 8 should be 5.1-5.5, is 5.8
D11 cathode should be 4.0-4.6, is 0.8
And finally, a question: if I readjust L1 (for the VFO), will I need to recalibrate the reciever, or will it just affect the VFO (and .: the band edges)?
-Mark Fickett, KB3JCY
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