Welcome, Guest. Please login or register.

December 01, 2021, 09:58:04 PM

Login with username, password and session length

Recent Posts

 

Author Topic: Pictures  (Read 19336 times)

syndromet

  • Elite
  • ****
  • Posts: 198
  • Chip Points: 39
    • View Profile
Re: Pictures
« Reply #15 on: August 20, 2008, 02:53:04 AM »

Robin755

  • Regular
  • **
  • Posts: 17
  • Chip Points: 0
    • View Profile
Re: Pictures
« Reply #16 on: August 20, 2008, 05:28:57 AM »
My little LM1875 Amp on top of the 2 fender-style cabs I recently build


syndromet

  • Elite
  • ****
  • Posts: 198
  • Chip Points: 39
    • View Profile
Re: Pictures
« Reply #17 on: August 21, 2008, 05:14:20 PM »
looks good. How did you construct the cabs? I like the wheels....

Robin755

  • Regular
  • **
  • Posts: 17
  • Chip Points: 0
    • View Profile
Re: Pictures
« Reply #18 on: August 22, 2008, 12:33:19 PM »
thnx, here's a picture of the back,
I made it so, that I can attatch a back-panel for closed-back,
and for open-back operation I can use 2 slices of wood with a space between them as rearpanel

I've checked your movies, sounds really great, what preamp did you use?




armstrom

  • Elite
  • ****
  • Posts: 150
  • Chip Points: 28
    • View Profile
Re: Pictures
« Reply #19 on: August 26, 2008, 10:47:22 PM »
Here are some pictures of my first and still on-going build:
The amp is a bridged TDA2005 with a modified ruby circuit as the preamp. Power will come from an external 12V power brick. The speaker is a 6" Weber signature ceramic. The cabinet started out life as an IKEA flower pot and was trimmed and shaped to its current form. The "chassis" is half of a Radio Shack aluminum enclosure. I'm having a leather handle made for it tomorrow since none of the ones I've found online are small enough (box is only 8" wide).

I hope to have it all buttoned up before the weekend... Hopefully everything works  :-\
Opinions? I know it's kinda retro looking... but it's being built for a retro kinda guy.






Robin755

  • Regular
  • **
  • Posts: 17
  • Chip Points: 0
    • View Profile
Re: Pictures
« Reply #20 on: August 27, 2008, 04:10:02 AM »
Looks great!!

got any pictures from the back and inside the chassis?

armstrom

  • Elite
  • ****
  • Posts: 150
  • Chip Points: 28
    • View Profile
Re: Pictures
« Reply #21 on: October 22, 2008, 09:13:03 AM »
Sorry it took so long to reply. Here are the latest pictures of the hurricane.
Also, here's a sound clip a friend recorded for me. Fair warning, it's about 2.5MB.
http://www.mr2-power.com/Hurricane_test_2.mp3








darwindeathcat

  • Elite
  • ****
  • Posts: 144
  • Chip Points: 1
    • View Profile
Re: Pictures
« Reply #22 on: October 22, 2008, 06:19:21 PM »
Hey man, Both your amps look and sound great! I just finished my little lm1875 job, using a modified professor tweed as the preamp. It works and sounds good, but I'm still "tweaking" it a bit. I've got the prof set for TOO much gain, so I need to mod it a bit (luckly I socketed the caps in the FB loop), and I blew the currently limiting resistor on my power LED, so I need to rewire that too. Once I get those things fixed, I'll post some pics and sounds too...

Congrats on the successfull Build!
__ ------------------- __
__ | | | | | | | | | | | __
    --------------------

smadin

  • Regular
  • **
  • Posts: 17
  • Chip Points: 2
    • View Profile
Re: Pictures
« Reply #23 on: October 22, 2008, 07:40:44 PM »
Agreed — that looks fantastic!  Very nice work.

darwindeathcat

  • Elite
  • ****
  • Posts: 144
  • Chip Points: 1
    • View Profile
Re: Pictures
« Reply #24 on: October 25, 2008, 02:12:30 PM »
Well, I have just finished my first amp build with some success! It's a Professor Tweed modded for 12v, slightly more gain, and tweaked for harmonica (better frequency response) that drives an LM1875 power amp module. I built the prof tweed and power supply on vero, and used the lm1875 mosule from qkits.com. I salvaged the chassis from a defunct old tube radio, got the transformers, jacks, leds, wire, and pots from a pair of old 8-track hifi tape decks, and got the heat sink, mains jack, mains cable, and mains fuse, from an old computer power supply. I sused new switches.

I spent maybe $10 to purchase all the salaged materials from Savers or the Goodwill, and I spent another $10 on the new parts, and about $13 on the lm1875 kit. All told that's about $30-$35 bucks for the whole shebang--not bad if I do say so myself!

 Here's a YouTube clip of the amp in action, and I'll follow up with some close up stills, and I'll throw some schematics up in a new thread over in the schematics forum.

<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/RiV78_rUv8c"> </param> <embed src="http://www.youtube.com/v/RiV78_rUv8c" type="application/x-shockwave-flash" width="425" height="350"> </embed> </object>

YouTube link: http://www.youtube.com/watch?v=RiV78_rUv8c
__ ------------------- __
__ | | | | | | | | | | | __
    --------------------

darwindeathcat

  • Elite
  • ****
  • Posts: 144
  • Chip Points: 1
    • View Profile
Re: Pictures
« Reply #25 on: October 26, 2008, 04:59:47 PM »
okay, here are a couple of pictures of the outside. Note the harmonica in the first pic  ;)
__ ------------------- __
__ | | | | | | | | | | | __
    --------------------

darwindeathcat

  • Elite
  • ****
  • Posts: 144
  • Chip Points: 1
    • View Profile
Re: Pictures
« Reply #26 on: October 26, 2008, 05:51:44 PM »
And here are some of the "guts". First and overview, then a zoom of the prof tweed circuit, then the lm1875 board from qkits...
__ ------------------- __
__ | | | | | | | | | | | __
    --------------------

armstrom

  • Elite
  • ****
  • Posts: 150
  • Chip Points: 28
    • View Profile
Re: Pictures
« Reply #27 on: October 27, 2008, 09:49:39 PM »
looks good. I'm digging the retro enclosure