collapse

Author Topic: SS circuit design questions  (Read 1006 times)

Fossilshark

  • Master
  • ***
  • Posts: 51
  • Chip Points: 0
    • View Profile
SS circuit design questions
« on: August 03, 2018, 01:27:34 AM »
Hi, i haven't been on this forum in a bit but I've had some questions about SS audio (specifically guitar) circuit design:

I found this class AB circuit and built it with 3904/3906 and got a few watts quality out of it. Can i just pop in beefier transistors and raise the voltage to get more wattage? Do i need to worry about biasing?

If i want more wattage do i need a preamp circuit with more gain?

How would germanium transistors in the poweramp affect the sound? Even if its just a germanium PNP with a 2N3055?

g1

  • Legendary
  • ******
  • Posts: 604
  • Chip Points: 70
    • View Profile
Re: SS circuit design questions
« Reply #1 on: August 03, 2018, 12:33:16 PM »
Sort of.  You need to back up that higher voltage with higher current capability of the power supply.  It's more about current than voltage.

Fossilshark

  • Master
  • ***
  • Posts: 51
  • Chip Points: 0
    • View Profile
Re: SS circuit design questions
« Reply #2 on: August 03, 2018, 03:51:27 PM »
Is the current increase due to just a higher voltage on the load resistance?

Loudthud

  • Elite
  • ****
  • Posts: 208
  • Chip Points: 33
    • View Profile
Re: SS circuit design questions
« Reply #3 on: August 04, 2018, 01:59:41 AM »
I'm not trying to dampen your enthusiasm, but the chances of that circuit working without modification are not very good. If you want simplicity, try a chipamp circuit. Slightly more complicated are the circuits in this thread:

 https://www.ssguitar.com/index.php?topic=3747.0

The circuit I posted in reply #7 can be adjusted to accommodate just about any power supply.

 

* User Controls

 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?

* Recent Posts

Eight Audio Kit TDA7294 and TDA2050 from India by laikairawk
[Today at 12:27:39 PM]


The Dangers of Speaker Impedance Mismatching by Enzo
[Today at 11:44:14 AM]


Gallien Kruger GT200 by gbono
[December 04, 2019, 02:54:12 PM]


Peavey Classic VT by Enzo
[December 02, 2019, 09:16:10 PM]


So you need a preamp - here are your options by flester
[November 29, 2019, 05:44:46 AM]

* Sponsors