Skip to main content
/

Site Navigation

Your Account

Choose Language

  1. Guide under construction. The body of the guide is 90% complete at this time. The body of the guide is 90% complete at this time.
    • Guide under construction.

    • The body of the guide is 90% complete at this time.

  2. Photo 1 - Resistors Photo 2 - Capacitors Photo 3 - Semiconductors
    • Photo 1 - Resistors

    • Photo 2 - Capacitors

    • Photo 3 - Semiconductors

  3. Photo 1 - Jacks, switches, and Potentiometer. (Red are incorrect style to fit PCB , this photo will be updated) Photo 2 - Example 24VDC power supply with 5.5x2.1mm plug.
    • Photo 1 - Jacks, switches, and Potentiometer. (Red are incorrect style to fit PCB , this photo will be updated)

    • Photo 2 - Example 24VDC power supply with 5.5x2.1mm plug.

  4. Large - Groundplane attachment bolts   Small - Mosfet attach bolts Heatsinks and stick-on feet
    • Large - Groundplane attachment bolts Small - Mosfet attach bolts

    • Heatsinks and stick-on feet

  5. Circuit PCB Ground Plane board Both are the same size
    • Circuit PCB

    • Ground Plane board

    • Both are the same size

    • Note: If you plan on building this without a chassis (I.E., as shown...) you must use the ground plane.

  6. Gather these components Stuff PCB smallest to largest, resistors, then power jack,
    • Gather these components

    • Stuff PCB smallest to largest, resistors, then power jack,

  7. Capacitors are polarized. The Negative side is marked on the can The positive lead is longer
    • Capacitors are polarized.

    • The Negative side is marked on the can

    • The positive lead is longer

    • The PCB has a "+" marked for the positive lead

    • Finish stuffing PSU capacitors and watch polarity.

    • Add testing procedure

  8. Measure all resistors before inserting into the PCB. This greatly reduces errors during construction. Measure all resistors before inserting into the PCB. This greatly reduces errors during construction.
    • Measure all resistors before inserting into the PCB. This greatly reduces errors during construction.

  9. All smaller resistors are on a 0.5 inch lead spacing. A lead bender tool is recommended. Remember, stuff resistors with the brown band to the right.
    • All smaller resistors are on a 0.5 inch lead spacing. A lead bender tool is recommended.

    • Remember, stuff resistors with the brown band to the right.

  10. Stuff resistors with the slightly thicker brown band to the right. Stuff resistors with the slightly thicker brown band to the right.
    • Stuff resistors with the slightly thicker brown band to the right.

  11. Optocoupler has a dot at pin 1, this aligns with dot on PCB Optocoupler has a dot at pin 1, this aligns with dot on PCB
    • Optocoupler has a dot at pin 1, this aligns with dot on PCB

  12. Left side J112. Right side LSJ74.
    • Left side J112.

    • Right side LSJ74.

    • J74s in this circuit need to be matched.

  13. The flat of the transistors aligns with the flat of the transistor mark on the silkscreen. Q2, Q2 are a matched pair of LSJ74
    • The flat of the transistors aligns with the flat of the transistor mark on the silkscreen.

    • Q2, Q2 are a matched pair of LSJ74

    • Q3 is a J113 selected for Vp of 2.5v, +/- 1v

  14. Bend legs down at point shown. Bend legs down at point shown.
    • Bend legs down at point shown.

  15. Thermal interface (pad or paste) not strictly required, but not a bad idea. Mosfets do not need to be electrically isolated from the heatsinks. Make sure heatsinks are aligned and do not touch each other.
    • Thermal interface (pad or paste) not strictly required, but not a bad idea.

    • Mosfets do not need to be electrically isolated from the heatsinks.

    • Make sure heatsinks are aligned and do not touch each other.

  16. A bit of tape will hold the jack completely flat on the PCB for soldering. Photo 3 - Improper alignment. Make sure the jack is entirely flat on the PCB before soldering. Photo 3 - Improper alignment. Make sure the jack is entirely flat on the PCB before soldering.
    • A bit of tape will hold the jack completely flat on the PCB for soldering.

    • Photo 3 - Improper alignment. Make sure the jack is entirely flat on the PCB before soldering.

  17. Maker sure potentiometer is flat on the PCB before soldering.
    • Maker sure potentiometer is flat on the PCB before soldering.

  18. Make sure the switch is flat and flush with the PCB before soldering Make sure the switch is flat and flush with the PCB before soldering Make sure the switch is flat and flush with the PCB before soldering
    • Make sure the switch is flat and flush with the PCB before soldering

  19. Insert wisdom here. Insert wisdom here.
    • Insert wisdom here.

  20. Screw from bottom, spacer in-between, nut on top. Screw from bottom, spacer in-between, nut on top. Screw from bottom, spacer in-between, nut on top.
    • Screw from bottom, spacer in-between, nut on top.

  21. Place as shown
    • Place as shown

Finish Line

One other person completed this guide.

6L6

Member since: 04/30/2018

8 Guides authored

Team

AwesomeSauce Member of AwesomeSauce

Community

2 Members

8 Guides authored

One Comment

Nice work thanks !!

nicoch58 - Reply

Add Comment

View Statistics:

Past 24 Hours: 0

Past 7 Days: 24

Past 30 Days: 89

All Time: 274