Welcome, Guest. Please login or register.

July 24, 2021, 09:22:33 AM

Login with username, password and session length

Recent Posts

 

Author Topic: 20 watt battery power guitar amp  (Read 7229 times)

rring

  • Regular
  • **
  • Posts: 17
  • Chip Points: 2
    • View Profile
20 watt battery power guitar amp
« on: September 01, 2012, 05:10:10 PM »
I am new to this forum and thought someone might find my amp design interesting. Its a guitar amp designed for busking and uses a cordless drill or SLA  battery for power. It has discrete circuitry until the final amp which is a TDA7360. Its relatively simple but has all kinds of potential for tweaks and I am sure others can come up with improvements.
I have attached the schematic. Sound samples, circuit variations and pictures can be seen at: www.circuitsalad.com

J M Fahey

  • SSGuitar Global Mod
  • Legendary
  • ****
  • Posts: 4142
  • Chip Points: 429
    • View Profile
Re: 20 watt battery power guitar amp
« Reply #1 on: September 02, 2012, 05:55:04 AM »
Congratulations on a real cool and advanced project.
Thanks for posting.

joecool85

  • SSGuitar Admin
  • Legendary
  • ******
  • Posts: 3409
  • Chip Points: 993
  • SSG Creator
    • View Profile
    • thatraymond.com
Re: 20 watt battery power guitar amp
« Reply #2 on: September 05, 2012, 10:32:31 AM »
We've had lots of requests over the years for a 12v battery powered amp, looks like this fits the bill.
Life is what you make it.
Still rockin' the Dean Markley K-20X
thatraymond.com

rring

  • Regular
  • **
  • Posts: 17
  • Chip Points: 2
    • View Profile
Re: 20 watt battery power guitar amp
« Reply #3 on: September 05, 2012, 01:13:00 PM »
I hope at least a few builders will like this circuit, if nothing else as a point of departure for a tweaked, custom tailored design. The reverb circuit may be overkill for many; getting a spring tank to work would not be hard at all.  I can tell you that the TDA7360 is a winner and easy to work with.  Basically anything in front of a tone stack and the final driver/feedback/TDA7360 sub circuit should sound good. I power it with my 14.4V NiMH makita battery and its loud as hell. I blew my original 6" MOD speaker apart! If anyone has suggestions - I'd love to make it better.