Vectronics VEC-1220K - Manual (Page 19)

VEC-1220K/1230K/1240K/1280K Owner's Manual
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! ! 14. Install the coil at L1 and solder.
! ! 15. Locate the 14.060 MHz crystal (metal can, two wire leads). Install at
Y1 and solder.
This completes stage 2 construction of the VEC-1220K 20-meter kit. After
checking for errors, you may now move on to the final stage of construction.
VEC-1230K 30-Meter QRP-CW Transmitter Kit
! ! 1. Find a 33 pF multilayer capacitor (marked 33 or 330). Install at C6
and solder.
! ! 2. Find a 47 pF multilayer cap (47 or 470). Install at C8 and solder.
! ! 3. Find a 100 pF multilayer cap (101). Install at C16 and solder.
! ! 4. Find a 220 pF multilayer cap (221). Install at C7 and solder.
Find two (2) 330 pF multilayer caps (331).
! ! 5. Install 330 pF at C19 and solder.
! ! 6. Install 330 pF at C20 and solder.
! ! 7. Find a 470 pF multilayer cap (471). Install at C13 and solder.
! ! 8. Find the remaining 680 pF multilayer cap (681). Install at C14 and
solder.
Locate three (3) 2.2 uH molded chokes (red-red-gold-silver or gold)
! ! 9. Install a 2.2 uH choke at RFC1 and solder.
! ! 10. Install a 2.2 uH choke at RFC2 and solder.
! ! 11. Install a 2.2 uH choke at RFC3 and solder.
Locate the T37-2 toroid form, a donut-shaped part about 3/8" in diameter and
color-coded red. Also, find the #22 enameled coil wire provided with your kit.
! ! 12. Wind fifteen (15) turns of #22 wire onto the T37-2 form. Turns are
counted inside the form, and each one is pulled tight before winding
the next. When done, spread windings to distribute them over 80% of
the form's circumference.
! ! 13. Trim coil leads to 1/2" and tin with solder.
! ! 14. Install the coil at L1 and solder.
! ! 15. Locate the 10.108 MHz crystal (metal can, two wire leads). Install at
Y1 and solder.