Vectronics VEC-841K - Manual (Page 7)

VEC-841K Owner's Manual Tunable SSB/CW Audio Filter Kit
5
Emitter
Flat Side
Metal Tab
Metal Can Device Plastic Device Tab-cooled Device
Integrated Circuits: Proper IC positioning is indicated by a dot or square
marking located on one end of the device. A corresponding mark will be silk-
screened on the PC board and printed on the kit's parts-placement diagram. To
identify specific IC pin numbers for testing purposes, see the diagram below.
Pin numbers always start at the keyed end of the case and progress counter-
clockwise around the device, as shown:
1 2 3 4
8 7 6 5
Installation
Key
Key
Installation
Pin Numbers
PARTS LIST
Your kit should contain all of the parts in the following list. Please go through
the parts bag to identify and inventory each item on the checklist before you start
building. If any parts are missing or damaged, refer to the warranty section of
this manual for replacement instructions. If you can't positively identify an
unfamiliar item in the bag on the basis of the information given, set it aside until
all other items are checked off. You may then be able to identify it by process of
elimination. Finally, your kit will go together more smoothly if parts are
organized by type and arranged by value ahead of time. Use this inventory as an
opportunity to sort and arrange parts so you can identify and find them quickly.
" Qty Part Description Designation
Fixed Resistors:
! 1 2.7 ohm resistor (red-violet-gold) R35
! 1 5.1 ohm, 1/2 watt resistor (green-brown-gold) R32
! 1 68 ohm resistor; 1/2 watt (blue-gray-black) R36
! 3 470 ohm resistor (yellow-violet-brown) R10, R28, R29