[Elecraft] K2 suddenly stops RX while on 160

Jukka Tarvainen tarjuk at gmail.com
Thu Dec 6 14:27:20 EST 2007


Hi!

I got suggestion from Rick, KC0OV, to check VCO control voltages.

1800 kHz 3,5 V
1960 kHz 7,5 V
1970- kHz 8 V

Other bands are well inside 1,5-7,5 V.

I search archives and found case where it has been below 1,5 V and that was
cured with additional capacitance in C75. I test with some other big size
capacitors around 450 pF and found that VCO voltage can be lowered. I need
to buy several small caps to make suitable replacement for original 470 pF.

We will see if this helps.

73
Jukka OH4MFA
getting ready for Stew Perry




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