- 1 -
12.05.2015
Tweed One-Twelve-16 Amp Kit Assembly-Instructions
1. Unpack all material and check for completeness.
2. Drill the missing holes into the chassis: 2x for the soldering strip and 1x sideways and
centric on the side of the transformer for the cable holder.
3. Commence equipping the board: first the resistors (0.5W), power resistors,
capacitors, and lastly the E capacitors. Pay attention to correct polarity.
4. Set up cable connections and bridges underneath the board.
5. Adjust the board, mark the chassis holes and drill (3.5mm).
6. Set up cable connections from under the board to other parts, according to enclosed
list.
7. Mount transformer and Terminal Solder Lockwasher Lugs for earth/ground point.
8. Mount tube sockets; pay attention to correct orientation.
9. Connect transformer according to scheme, twist the secondary
wires.
10. Mount lamp holder and fuse carrier.
11. Mount potentiometers with chopper discs and bend the lug.
12. After Pre-wiring the input jacks mount them with the washer.
13. Mount the speaker output jacks.
14. Insert rubber grommets (2x 10mm for the transformer, 1x 15mm for power cord)
15. Mount the transformer, feed the cable through. Twist blue and brown and connect.
16. Insert the board, adjust it and fix it.
17. Wire everything according to scheme.
18. Skin power cord for about 10cm and connect it.
19. T
wist and install the green filament cable, 18AWG. (Positions “F” and “F1” of the
layout)
20. Turn the cabinet upside down, slide in the chassis and adjust the back panel in order
to draw the drill holes.
21. Drill the holes at 5.5mm.
22. Mount the loudspeakers.
23. Mount the chassis into the cabinet.
24. Connect the loudspeaker cable to the speaker.
25. Mount the power cord at the side of the cabinet using the cable relief.
26. Plug in the tubes.
27. Functioning test: visual check: wiring correct? Have you connected every earth point?
Do the electrolytic capacitors have the correct polarity? Are the tube sockets correctly
wired? Grounding safe and correct? Are the cable insulations undamaged?
28.
Electronic functioning test with multimeter (Ω): do all earth points have connection to
chassis, do all points carrying high voltage have no shorts to ground?
29. If possible, while gradually increasing the voltage, measure the voltage.
