Scotty,
That is a very narrow range, with the 68 pF capacitor at C2, you should
have 80 to 100 kHz, and with the 120 pF you will have about 150 kHz.
Check the orientation of D3 - the shorter flat side is the "rounded"
side. Also check C11 and C12 to be certain they are both 1200 pF (and
not the 120 pF). C5 should be 3300 pF.
If you installed the 68 pF for C2, you should have a 120 pF polystyrene
capacitor left, if it is some other value, you have the wrong capacitor
at either C3, C11 or C12.
You might also measure the voltage at P1 pin 14 as you rotate the VFO
pot. If it does not change from near zero to near 6 volts, look for
something wrong with the wiring of the VFO pot.
73,
Don W3FPR
On 5/6/2013 12:56 PM, Scotty Long wrote:
K1 question VFO range test page 38;I have L1 adjusted with 32 turns red enamel
wire. The VFO is adjusted to 3.099 - 3.067. Is this normal or am I missing some
VFO range???
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