Maxter 3600

[mkubawat]

I have a stock of ir2117 in india

 

[vedmitra]

I have a stock of ir2117 in india

can you quote rates on my e mail id vedmitraa@gmail.com

 

[QQ12e5k1]

proposed step driver for maxter speaker output

hei michelle...can you post bottom side of this steo driver???
are you success to build it???

 

[mkubawat]

Hey................... where are all gone

 

[michelle]

working step for maxter 3000
michelle

 

[ravpreet420]

Plz michelle send circuit schematic and pcb layout of step

 

[mkubawat]

hi
I also waiting for schematic and pcb layout of step

 

[irvynejay]

aster 3.6k 5 pairs for test

testing 123

 

[khalsa]

very nice irvynejay

 

[irvynejay]

Master 3.6k with orig step driver

Works Great than the my other step
voltage 62 122 +/-

 

[michelle]

hi diyers
greetings this MAXTER AMP is comming of age just be patient lots of testing being done with different steps different supply voltages
then everything will be put on diysmps as i said from begining very good amp
thanking you
michelle

 

[aldemarar]

It makes me happy that they this one working the circuit that it they donates, is a great amplifier
me alegra que les este funcionando el circuito que les done,es un gran amplificador
saludos desde colombia

 

[ravpreet420]

Nice work irvynejay
Everybody waiting for PCB and schematic
Thanx and Regard
Ravpreet420

 

[irvynejay]

master 3k6 7 pairs

Hello master on 7 pairs with signal,clip,power,h rail indacator

7 pairs still good response but driver side is very stressful
unbalance trigger on step drive +side trigger faster than -side ( i hope i can fix this)
next test applying triple ef on output stage to solve the problem of driver stage

 

[mkubawat]

Nice work irvynejay
please post PCB layout and schematic of step driver...

 

[irvynejay]

All files are in this thread pls read from first and end of this thread,
aldemarar,michelle,engel have contribute information on this amp
all you need is read,compare,analyzed,build and test

my progress on this project will be posted here files,modification,test and fixes will be shared after several test were done,,..

special Thanx to the Forum,Mr Mullato,aldemarar

 

[irvynejay]

update

master 3k6

i just found and fix the unbalance voltage out of the step by following the original values of master 3k6 change some value of resistors and add 1 5k variable
now voltage out +/- on step are now balance
step driver have trim pot to adjust +high rail only

tested in full range and sub its stunning response

 

[mkubawat]

Good job irvynejay
Please tell us what changes you made ​​in circuit , How much HV & LV was kept during observation & why connect LED with both diode

 

[irvynejay]

62/122 -/+ LED are indicators for high rail is triggering its on original step of master 3k6
changes was made, i replace 2 47k to 4.7k and 2.7k to 270k from the input of the step after 1n4007 and added 5k trimmer series with 2.2k on +side input of step
Why did i change it? because once the the step triggers both rails is not balance so i try to follow the original set up on input of the step to adjust +side of the HV
file attach for reference
**
i far as i notice upon surfing the net looking for answer the driver board is copied on crest audio and the step driver is from master DPU 3k6

 

[ravpreet420]

Hello irvynejay
Nice work
In post no #74 i see all picture of amp ,i see 3 led circuit with two transistor circuit(H rail indacator,signal) , Plz can u post for all diyers