Ten-Tec SSB-CW-AM Instruction Manual page 82

Install the following ceramic disc capacitors:
6-24. Capacitor C57, 8pF.
6-25. Capacitor C60, 0
6-26. Capacitor
6-27. Capacitor
NOTE: There is an unlabeled outlined for a capacitor next to C57
which would serve as a shunt across trifilar balun T9. However,
further engineering determined no capacitor is needed here, and
this is the-only such "vacancy" on the entire 1254 circuit board.
6-28. Install transistor Q2, JFET type J310, being sure to
orient the flat side as outlined.
6-30. After carefully double-checking the parts just installed
for correct values, install a shield enclosure, soldering all four
mounting tabs. No top cover is used here.
Figure 6.2b
Alignment Preview
After Phase 6.0 is finished
and panel/chassis sections
installed, the Model 1254
is aligned simply by adjusting
these coils for peak signal
strength.
T6
T9
L10
T7
R70 is adjusted for
minimum background
noise at 300 kHz
(marked 104).
1254 - Assembly - 61