Yo!)
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Waiting "craft" PCB of SR300 amp... and now i have two question:
1 - Any power supply with soft start PCB in lay format (for print PCB) for this amp ?
2 - Any protection PCB in lay format for *again* this amp?)
*cheers.
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Waiting "craft" PCB of SR300 amp... and now i have two question:
1 - Any power supply with soft start PCB in lay format (for print PCB) for this amp ?
2 - Any protection PCB in lay format for *again* this amp?)
*cheers.
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Hi apex.
I already build SR200 amplifier. Sound very good.
Any suggestion for other amp that more power and high quality sound?
I already build SR200 amplifier. Sound very good.
Any suggestion for other amp that more power and high quality sound?
Thanks Mr. Mile S. I post 2 PSU PCB. Please guide me which one we use for SR20 with 30Vac transformer.
1 pic. already operated on 28v ac.
2 pic working on high voltage 40Vac for bigger amp. If we use this PSU on 30Vac then please guide me what change we need.
Regards
Gurpreet
Attachments
Friends, please tell me where can I download the board for this amplifier (SR100F)? I can not find.
Hi, AdeS.
This link leads to the APEX SR100 board with the LF411 chip. I'm asking for a circuit board on APEX SR100F with FET 2SK117.
There is resistor near bias 1k change. To 1k5Hi QQ12e5k1, Thank you very much, this is what I need.
Hello Mr. Mile and QQ12e5k1, I m going to make SR100F but 2SK117 now not available in market stores, When I ask for equivalent, then he suggest me 2n7000, but when I see his electrical diagram different from 2SK117.
My question is can I go with 2n7000.
Regards
Gurpreet
My question is can I go with 2n7000.
Regards
Gurpreet
hi all any one can tell me why 800v 40A triac? can we use another triac?
if it need to be 800V 40A i cannot find it here can i use BTA 41 ? its look like same 800V 40A. here is datasheet.
BTA41 pdf, BTA41 description, BTA41 datasheets, BTA41 view ::: ALLDATASHEET :::
Hi, I builded fr100 using file in post 2140 that Terry uploaded and I have a problem with offset, they are 90mv and 125mv.
I'm using 30-0-30vac and vdc drop from +/-42 no-load to +/-32 with load, which is kind of high. Bias is set to 90ma for each pair. The modules passed light bulb test.
I matched input Tr but I cannot be sured if the reading are corrected or not. I've builded ax14 without matching before and the offset never exceeded 50mv so I'm not sure if there is something wrong. What should I looking for? Any suggestions?
Thank
I'm using 30-0-30vac and vdc drop from +/-42 no-load to +/-32 with load, which is kind of high. Bias is set to 90ma for each pair. The modules passed light bulb test.
I matched input Tr but I cannot be sured if the reading are corrected or not. I've builded ax14 without matching before and the offset never exceeded 50mv so I'm not sure if there is something wrong. What should I looking for? Any suggestions?
Thank
Hello, I have another question, it may be simplistic for many members, but for me to understand better how the protection works: is the PRO input of the protection circuit simply connected to the output transistor emitter? So this way in any amplifier is it possible to connect a protection circuit? Thank you and I hope to solve this doubt because I want to put a protection on an amplifier that does not have it.
