Nice work... I made some changes on circuit...
Good afternoon.
Could provide the scheme?
Thank you.
What is the difference between v1.1 & v1.2 of SPS 1000? is there an up-to-date schematic available? I ask caused I have just about recovered my work area and want see what components I need to source
Sent from my HUAWEI MT7-L09 using Tapatalk
Sent from my HUAWEI MT7-L09 using Tapatalk
APEX SPS1K v1.2
Hi,can you post this in black&white for home etching?
Hi,can you post this in black&white for home etching?
As far as I can see there is no artwork change between v1.1 and v1.2. Only the values have changed.
Sent from my HUAWEI MT7-L09 using Tapatalk
What is the difference between v1.1 & v1.2 of SPS 1000? is there an up-to-date schematic available? I ask caused I have just about recovered my work area and want see what components I need to source
Sent from my HUAWEI MT7-L09 using Tapatalk

on RED marked Part changed, & on GREEN marked track changed by Apex.
Hi,can you post this in black&white for home etching?
here it is,
regards
Attachments
APEX sps1k sch
Trafo winding by Apex:
- Use 0.6mm wire
- Wind 20 turn with 4 x 0.6mm wires in parallel on ETD49 for primary
- Wind 3 turn with 0.6mm for 24v secundary and 2 turns 2 x 0.6mm in series for 2 x 15v
- Wind 2 x 8 turn with 5 x0.6mm wires in parallel For main secundar.
Trafo winding by Apex:
- Use 0.6mm wire
- Wind 20 turn with 4 x 0.6mm wires in parallel on ETD49 for primary
- Wind 3 turn with 0.6mm for 24v secundary and 2 turns 2 x 0.6mm in series for 2 x 15v
- Wind 2 x 8 turn with 5 x0.6mm wires in parallel For main secundar.
View attachment 563021 there is between v1.1 & v 1.2
on RED marked Part changed, & on GREEN marked track changed by Apex.
Track for 15v gnd must be reroute.
Attachments
That is what I used to begin with bu there a several differences to the PCBs.
my amplifier. Now it works, I repaired
Nice work, what is core material with this big gap? BD241 must have heatsink.
Regards
Nice work, what is core material with this big gap? BD241 must have heatsink.
Regards
I install the heat sink, I do not have it, I need to buy. Material 2000NM core, you can put a ring on EPCOS. The size 45*28*12
Attachments
- Home
- Amplifiers
- Class D
- Class D Amp with LM566, LM393 and 2XIRF530