dear ashok,
i etch your av400 and av1000 watt amplifier pcb .but there is not protection circuit and how the bios voltage is set.plz give me details thanking u.regard masood
i etch your av400 and av1000 watt amplifier pcb .but there is not protection circuit and how the bios voltage is set.plz give me details thanking u.regard masood
hello ashoka
i have tested your AV1000w driver board which you sent me in that i have tested with 40-0-40 5amps transformer its work fine but 1306 and 3298 transisters are heating
please reply
i have tested your AV1000w driver board which you sent me in that i have tested with 40-0-40 5amps transformer its work fine but 1306 and 3298 transisters are heating
please reply
hi this av400.zip LAY file one error
look this correct LAY file
my AV800 completed
An externally hosted image should be here but it was not working when we last tested it.
Read your mail.
Use this link if u want to construct 400W Marshall Leach Amp
Dr. Leach's Amplifier and Speaker Projects
Gajanan Phadte
Use this link if u want to construct 400W Marshall Leach Amp
Dr. Leach's Amplifier and Speaker Projects
Gajanan Phadte
dear sirs,
i was out of electronic work .now i come back i want to buy ic lm3886 in delhi.can any one give me the shop no.in delhi thank you
i was out of electronic work .now i come back i want to buy ic lm3886 in delhi.can any one give me the shop no.in delhi thank you
Hello.
I'm also building av800. After many many mistakes and errors i managed to get it through pre-flight test somehow.
But Q5 (IRF610) seems to be heating quite hot. around 60+ celsius.
I haven't yet tested the amp with o/p devices in fear of blowing them.
What is the maximum input voltage and should i use some sort of load in pre-flight test?
I'm also building av800. After many many mistakes and errors i managed to get it through pre-flight test somehow.
But Q5 (IRF610) seems to be heating quite hot. around 60+ celsius.
I haven't yet tested the amp with o/p devices in fear of blowing them.
What is the maximum input voltage and should i use some sort of load in pre-flight test?
The amp in the picture (post 66) gives a little concern.
Looks like IRFPs are being used. Should there not be local decoupling caps?
From experience layout is important for verticals and not having local decoupling could be asking for oscillation issues? There doesn't appear to be any gate zobels either or are they soldered directly to the MOSFET pins underneath?
Looks like IRFPs are being used. Should there not be local decoupling caps?
From experience layout is important for verticals and not having local decoupling could be asking for oscillation issues? There doesn't appear to be any gate zobels either or are they soldered directly to the MOSFET pins underneath?
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