100W Ultimate Fidelity Amplifier

[apexaudio]

hi apex, can you please tell me which amplifier u had can be use on my transformer 2x 30vac another is 2x 24vac?

What is power of transformers? It can be used for AX-14 anyway.
Regards

 

[wakwakni]

What is power of transformers? It can be used for AX-14 anyway.
Regards

its an E core type 15 amperes. do u have a schematic for the AX-14? my experience in electronics is too little but i know how to make pcb's.
thanks apex.

thanks..

 

[apexaudio]

its an E core type 15 amperes. do u have a schematic for the AX-14? my experience in electronics is too little but i know how to make pcb's.
thanks apex.

thanks..

AX14 Schematic

 

[wakwakni]

thanks..

AX14 Schematic

thanks sir apex i also found the pcb lay-out here in these thread surely i can make this one. post #44. APEX KELVIN BJT
i hope the parts are available here.
thanks again sir apex


regards 😀

 

[apexaudio]

thanks sir apex i also found the pcb lay-out here in these thread surely i can make this one. post #44. APEX KELVIN BJT
i hope the parts are available here.
thanks again sir apex


regards 😀

If parts not available in your place, I suggest this amp:
http://www.diyaudio.com/forums/solid-state/167394-quasi-amplifier-beginners-33.html
Regards

 

[apexaudio]

Jef, GND from protect circuit must be connect to PSU GND if you want use DC protect function.
Regards

 

[wakwakni]

If parts not available in your place, I suggest this amp:
http://www.diyaudio.com/forums/solid-state/167394-quasi-amplifier-beginners-33.html
Regards

thanks sir apex

 

[jef9200]

Thanks,
The problem is that i've 2 PSUs . i've read to connect protection card to OV from each channel using a 100R in serie (for each channel). What do you think about it ?

 

[apexaudio]

Thanks,
The problem is that i've 2 PSUs . i've read to connect protection card to OV from each channel using a 100R in serie (for each channel). What do you think about it ?

It's OK

 

[jef9200]

Is it possible to use GND from loudpeakers connectors ? easier for wirring.

For other poeple that want to build ax14, very easy. Be very carrefull when setting the bias with a one turn pot !!

 

[apexaudio]

Is it possible to use GND from loudpeakers connectors ? easier for wirring.

For other poeple that want to build ax14, very easy. Be very carrefull when setting the bias with a one turn pot !!

Yes, wire will be short.

 

[apexaudio]

Stereo NX14 with single regulated PSU.

 

[viki_v2]

Hi apex,
Do you have pcb for a good pre amp.

 

[apexaudio]

Hi apex,
Do you have pcb for a good pre amp.

You can find preamp schematic in post #57, and PSU in thread: http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu-2.html
Regards

 

[viki_v2]

Hi
In post 290 you told b500 is good as sub amp can you post schematic and pcb diagram.

 

[apexaudio]

Hi
In post 290 you told b500 is good as sub amp can you post schematic and pcb diagram.

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

 

[viki_v2]

AX- 14 pcb etched

Hi
i have etched boards for AX-14.
I need help as what is difference in sound quality when using sanken 2sc2922-2sa1216 over 2sc5200-2sa1943.

and please give a block diagram showing how to make connections between AX-14, psu with protect and speaker terminal pcb.

psu of f100 shows protect , clip where to connect them on AX-14
I have made 4 pcbs of AX-14 . I want to bridge them, need guidance for bridging and psu for 4 pcb.

And my etched pcb photo

 

[viki_v2]

Hi jef
In post 464 you have shoed photos of amp.there are 3 pcbs one is amp, second is psu and third seems to be input selector. if yes please help with pcb diagram

 

[viki_v2]

sorry again
What rating of transformer for AX-14 for i channel and bridged

 

[apexaudio]

sorry again
What rating of transformer for AX-14 for i channel and bridged

Use 2X35V ac, 400VA for stereo.