Ten-Tec 1253 Assembly And Instruction Manual page 26

Install the following ceramic disc capacitors. ** Be sure NOT to
use any of the .01 μF mylar capacitors required for C20-C27:
3-17 Capacitor C2, 33 μF.
3-18. Capacitor C1, 100 pF (marked 101).
3-19. Capacitor C18, 220 pF (marked 221).
3-20. Capacitor C4, .01 μF (marked 103) **
3-21. Capacitor C6, also .01 μF. **
3-22. Capacitor C7, also .01 μF. **
3-24. Capacitor C3, also .01 μF. **
3-25. Capacitor C8, .1 μF (marked 104).
3-26. Install RF Gain control, 10K potentiometer R1, seating
the control squarely on the board before soldering. This is
important to assure a good fit to the aluminum subpanel.
3-27. Install Regeneration Control R5 per Step 3-26.
3-28. Install Fine Tuning Control R21 per Step 3-26.
3-29. Coaxial Cable Preparation:
A.
B.
C.
D.
3-30. Solder one end of the cable prepared in 3-29 to the
ANTENNA points near the RF Gain control: the center conductor
is soldered to the "IN" pad, and the braid is soldered to GND.
3-31. Gently slip the subpanel over the shafts and bushings
of the four board-mounted controls until it is flush against the
fronts of the controls. Notice how the locking pins should fit into
the small holes of the subpanel. (Do NOT mount washers and
nuts yet.)
Strip 1/2" of the outer black insulation from each end
of the RG 174 mini coax cable.
Gently unravel the exposed braids and twist the
strands to form single stranded conductors.
C. Strip 1/8" of the inner insulation from the center
conductor at each end.
Lightly tin the exposed braids and center conductors.
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