View Single Post
Old 05-04-2022, 04:20 AM   #1
dicky96
Sun Seeker
 
dicky96's Avatar
 
Join Date: Mar 2017
City & State: Sunny Gran Canaria
My Country: Spain
Line Voltage: 220V 50Hz
I'm a: Professional Tech
Posts: 1,386
Default What 'class' is this Hill Audio DX3000 Amplifier?

Hi guys, this is general query really

So I have a Hill DX3000 3KW audio amplifier here.

It has a topology/design like a class A/B but all the banks of output transistors (10 transistors in each 'side' of the channel) are NPN.

I was wondering what class this is. It doesn't fit the description of class A.
It also doesn't match class A/B or B amplifiers as all the examples I see have a complimentary output stage desigs (NPN/PNP) and clearly is not G, H or D

I looked for 'class A push pull' but that didn't tell me anything either

Here is the schematic. So what is it?


OOPS WRONG PIC - On moment

thanks
rich
Attached Images
File Type: jpg 20220503_121334.jpg (700.2 KB, 25 views)
Attached Files
File Type: rar hill_dx1000_dx2000_dx3000_amp_sm.rar (17.89 MB, 22 views)
__________________
Follow me on YouTube
------------------
Learn Electronics Repair
https://www.youtube.com/channel/UCFX...R8UZ2vg/videos

Last edited by dicky96; 05-04-2022 at 04:22 AM.. Reason: WRONG PIC LOL!!!! one minute...
dicky96 is offline   Reply With Quote