900W H-class PA Amp with Limiter

[boggart dapo]

bav21
mur120
uf4004
4006
4007

engel,,
is this 1n4006,,1n4007 ?

 

[irvynejay]

not 1n4001,1n4007
its uf4001,to uf4007
fr103

 

[irvynejay]

BAV20,21 is commonly use on old AOC crt monitors
bav20 can be found on newer version of crt flat or semi flat AOC 17 inch monitors
bav21 can also be found on old version 14 inch AOC crt

those diodes are placed on prong pcb

look for junk monitors and you will find those diodes
http://www.nxp.com/documents/data_sheet/BAV20.pdf

 

[soerdjanto]

proses pembuatan travo untuk H900
travo making process for H900

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[TonyTecson]

I created this travo own
I use a silicon steel / crgo as its core
imported from japan
10cm high
3.8 cm thick
7.5 cm diameter circle in
cores weighing 9.5 k
primary wire 1.5 mm
secondary wire 1.8 mm
with turn ratio of 1.5
spent approximately USD 1,000,000 (U.S. $ 90)
and need the time at least for 3 days to finish 1 unit travo
Sorry my english

nice work! may i know where you get your irons? and how much?

 

[soerdjanto]

aku tukune neng koncoku kang. q ora ber hubungan langsung karo pabrike neng jepang.
dadi q ora weruh alamate pabrike neng ngendi. heheheeee

I get the silicon steel from my friend, and I do not deal directly with its factories in Japan.
so, I do not know where the address. heheheeee

 

[TonyTecson]

aku tukune neng koncoku kang. q ora ber hubungan langsung karo pabrike neng jepang.
dadi q ora weruh alamate pabrike neng ngendi. heheheeee

I get the silicon steel from my friend, and I do not deal directly with its factories in Japan.
so, I do not know where the address. heheheeee

terema kasi, abang...... thank you.....

 

[andrewlebon]

weak audio

hi jay
greetings can anyone tell why i am getting very weak audio output
only when i touch ground and touch input i get faint audio clickbase drive voltages are correct no heating of any component using v2 h900 pcb
thanking you
andrew lebon

 

[engel dela pena]

andrewlebon
post picture buddy

 

[boggart dapo]

anybody PCB layout apex fet stereo preamp 3.1,,,,,,

 

[QQ12e5k1]

Step Driver

Can I use this step driver for B500 with 3 final transistor,Sir??

Regards

 

[soerdjanto]

HX900 with speaker protector

An externally hosted image should be here but it was not working when we last tested it.

 

[khalsa]

good design

 

[soerdjanto]

good design

thanks

 

[Pineng]

good job soerdjanto

Can you share for everybody?

 

[andrewlebon]

hi soerdjanto
greetings have you tested this step driver hows the performance
nice pcb
thanking you
andrew lebon

 

[aman khalsa]

nice work sir..

 

[soerdjanto]

HX900

hi soerdjanto
greetings have you tested this step driver hows the performance
nice pcb
thanking you
andrew lebon

rung tak jajal kang. rung sempet wektune, nggko nek wes tak jajal, tak kabari yo

I have not tried this layout.
I still constrained by time, so I have not had time to test it
later when I have tried, I would upload pictures

 

[yosie48f]

look here http://www.diyaudio.com/forums/solid-state/164208-500w-pa-amplifier-limiter-60.html

post #598

sound is clearly and powerfull.... thank you Mr.Mile and Mr.Collet for pcb....

 

[engel dela pena]

apex,
please share sign generator that is simple but functional and can be use for testing h900 and other stuff with step tlo,etc
hope you consider this one,diy'r realy need this mostly guy who already build h900 and b500 with step
thanks