Thank you Delange. The markings were already on the back. It is a prefabricated housing from China
Some tests... 210w in 4 ohm, full power bandwidth on 4ohm = over 1Mhz (-3dB). DCpower at +-50v stabilized voltage. Slew rate 77V/usec, rise time and fall time smaller than 0,5usec betwen 20% and 80%.
Cyan it is input signal, green it is output signal on 4ohm.
Cyan it is input signal, green it is output signal on 4ohm.
Attachments
Thank you greierasul, it is very generous!
😉
With pleasure for a diy people. Best regards, Raimond.
Ok. Some are in english, some in romanian. For romanian files:
-"fisiere eagle adaptor rezistenta dubla" means "Eagle files for double resistor adapter"
-for the gerber files you don't need the translation.
- in the BOM file there are:
A - tip componenta - component type
B - valoare - value
C - putere/tensiune - power/voltage
D - spatiu intre pini - the space between components pins
E - cantitate - amount, quantity
26 - Semireglabil multitura de 1 Kohm de tipul BOURNS seria 3296W - resisting trimmer multiturn, 1kohm, type BOURNS 3296W
4 - rezistente - resistors
25 - rezistenta dubla - double resistor
29 - condensatori - capacitors
43 - diode - diodes
49 - tranzistori - transistors
62 - diverse - miscellaneous
63 - conectori putere - power connectors
64 - soclu pentru sigurante - socket fuse
67 - Linkurile de mai sus au scop pur informativ referitor la dimensiunile exacte ale componentelor avute in vedere la proiectarea cablajului - Links are only informative for the dimensions of the components
68 - Toate componentele de mai sus sunt pentru un singur canal - all the components ar just for one channel.
70 - Pentru rezistentele duble din emitorii finalilor voi proiecta un cablaj mic pentru un adaptor pe care se vor putea folosi mai multe tipuri (3 tipuri) de rezistente legate in paralel pentru a putea obtine valoarea necesara - For the double resistors from the emitters of the power transistors which is hard to find, I'll design a PCB adapter for 3 other types of resistors. There will be parallel resistors for the optimal final value.
71 - Componentele cu fonturi in coloarea rosie sunt componente optionale care fac parte din protectia SOA - The red components, are optional. That component are for the SOA protection circuit.
72 - Cele doua diode de pe layerul top marcate NM nu se vor monta!!!!! - The two diodes from the TOP layer, "NM" marked, they will not mount !!!!!
Gerber files talking about smaller MLT resistors and separated power supply. This isn"t relevant for the gerber files itself. There are just a titles.
Dear greierasul thank you for the design you have done what you had emailed me to.
I'm going to see if I can do this project.
I started with the first design I saw on youtube with PCB mr ALEXmm.
I am new to this audio world so I do my best, first have to purchase the materials
Best regards Hans
I'm going to see if I can do this project.
I started with the first design I saw on youtube with PCB mr ALEXmm.
I am new to this audio world so I do my best, first have to purchase the materials
Best regards Hans
The Alexmm PCB it is as good as Vlad PCB. Do the same thing in another format. The choice between them is your 🙂.The difference between them are the gerber files for the Vlad's PCB. Good luck Hans !
🙂 SARA-2012 was not for diy people destination. It was a complex schematic, maybe too complex. It had nested feedback, coils compensation, multi-pol compensation, etc...
SARA-2016 has a good yield between performances and complexity.