Vectronics VEC-841K User Manual

Page 13

VEC-841K Owner's Manual

Tunable SSB/CW Audio Filter Kit

! ! 30. Locate resistor R4. This is a 130K resistor (brown-orange-yellow).

Carefully bend the leads close to the resistor body as in Step #1. Insert
at R4, solder in place and trim the leads.

! ! 31. Locate resistor R16. This is a 240K resistor (red-yellow-yellow).

Carefully bend the leads close to the resistor body as in Step #1. Insert
at R16, solder in place and trim the leads.

! ! 32. Locate resistor R32. This is a 5.1 ohm, 1/2 watt resistor (green-

brown-gold). Carefully bend the leads close to the resistor body as in
Step #1. Insert at R32, solder in place and trim the leads.

! ! 33. Locate resistor R36. This is a 68 ohm, 1/2 watt resistor (blue-gray-

black). Carefully bend the leads close to the resistor body as in Step
#1. Insert at R36, solder in place and trim the leads.

Installing Non-polarized Capacitors:

Important Note: Capacitors C5-C8 are made of a polystyrene type material.
Avoid overheating these components when soldering to prevent melting the
capacitor body.

! ! 1. Locate capacitor C5 (1000pF). The is a polystyrene capacitor and will

be marked with a "1000J" on the body (actual value in pF).

! ! 2. Mount C5 and solder both leads in place, making sure the capacitor

remains seated. Remove excess leads on the bottom side of the board
with diagonal cutters.

! ! 3. Locate capacitor C6 (1000pF). The is a polystyrene capacitor and will

be marked with a "1000J" on the body (actual value in pF). Insert at
C6, solder in place and trim the leads.

! ! 4. Locate capacitor C7 (1000pF). Insert at C7, solder in place and trim

the leads.

! ! 5. Locate capacitor C8 (1000pF). Insert at C8, solder in place and trim

the leads.

! ! 6. Locate capacitor C1 (.1uF). The is a disc ceramic capacitor and will

be marked with either a "104" or "104Z" on the body (actual value in
uF). Insert at C1, solder in place and trim the leads.

! ! 7. Locate capacitor C3 (.1uF). Insert at C3, solder in place and trim the

leads.

! ! 8. Locate capacitor C16 (.1uF). Insert at C16, solder in place and trim

the leads.