| | | |
|
|
|
|
|
Picture of bare pcb Viewed: 6121 times.
|
Soldering the Riken 0.5W resistor first, as it has the lowest profile, R3 = 620/680, depending on R2 Viewed: 3293 times.
|
Picture of soldering process Viewed: 2468 times.
|
After soldering process Viewed: 2234 times.
|
| | | |
| | | |
|
|
|
|
|
Soldering the Caddock resistors next, R1 = 220ohm, R2 = 20k/22k depending on R3 Viewed: 2166 times.
|
Soldering complete Viewed: 2191 times.
|
View of top of boards with the resistors in place *Viewed: 3051 times.
|
View of the back of the pcb with resistors soldered Viewed: 2747 times.
|
| | | |
| | | |
|
|
|
|
|
Time to solder the large caps Viewed: 2267 times.
|
Caps are installed. Note the polarity. If you get this wrong, they might explode. *Viewed: 2905 times.
|
Time to install the negative feedback (NFB) resistor Viewed: 2715 times.
|
leads are clipped, and resistor is clamped in place Viewed: 2999 times.
|
| | | |
| | | |
|
|
|
|
|
Finished soldering NFB resistor Viewed: 3151 times.
|
LM3875 in place to be soldered Viewed: 2708 times.
|
LM3875 is now soldered Viewed: 2627 times.
|
Front view of amplifier, now ready for chassis installation Viewed: 3725 times.
|
| | | |
| | | |
|
|
|
|
|
Bending Rnfb to place on the LM3875 for second channel Viewed: 2680 times.
|
clamped place. This one came out a bit better than the first. An alligator clip will work fine for a clamp Viewed: 2696 times.
|
Resistor with leads clipped to proper length and bent correctly Viewed: 2411 times.
|
Diodes now soldered into power supply board *Viewed: 3694 times.
|
| | | |
1
