Has any one built this 1KW amp?

[Jansaen]

Originally Posted by andrewlebon

Hi Kimberlator
greetings please can you tell which schematic you made this is the one with 560 ohms and 38k in input section this pcb is for trial run only
so only one pair mje15032 33
warm regards
andrew

Hello.,andrewlebon
May i have to see the PCB of your design.
I would like to make this Amp.

Thanks.
Jansaen

[kimberlator]

Originally Posted by Workhorse

Thats very old design of mine.

As Paul already said, the diode connected trannies must be attached to heatsink in order to get proper heat tracking. To enhance the low level signal clarity, put one more diode connected transistor in series with other two already in the schematic and set the trimmer accordingly to get 20mA idle current in output devices.

Thank you Kanwar, sonics are very good indeed, one of the main interesting things about your design is the fact that looks like is a "Bullet-Proof" design, i've managed down to 1 - 1.5ohm without issues, other than the lots of heat to get rid off of it, but since main outputs are mounted on a well-suited heatsink it's no big deal.Thank you and hope to see some of your newer designs as well with 3 main objectives:Class AB, Compact and of course, Powerful.

[andrewlebon]

WORKING ON IT

[kimberlator]

Your Volume Pot Isn't Properly Connected At Pre-Amp Input.
Here Are The Correct & Incorrect Modes,
Check Out Both Andrew.
Best Regards.

[ynopac]

sir workhorse where is the circuit diagram ..pag paguni kan sa met...

[Workhorse]

Originally Posted by ynopac

sir workhorse where is the circuit diagram ..pag paguni kan sa met...

Scroll back some pages and you will see, how silly for some members who don't do their homework and want spoon feeding.

[kimberlator]

Originally Posted by Workhorse

Scroll back some pages and you will see, how silly for some members who don't do their homework and want spoon feeding.

"Spoon Feeding" lol....

[vedmitraa]

Paa ji Sat Shri Akal ,
Is the circuit on page1 post6 of this thread complete. Kya yeh naachees can give this circuit a try with your guidance.Planning to pu 16 pairs 15024 - 25 that is toatl 32 in output. will a 2.5 kva transformer will be enough for this amp.Is nachhese ki choti si work shop ka photo saath hai.regards

[pankaj kashyap]

sir i want to build this amp,plz send shortcircuit protection schematic.

[Workhorse]

This circuit is very old, better to build the 1.5KW class-H instead which has complete set of protections.