|
|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Swap Meet Sell your stuff here, who knows, some other fanatic might be interested! |
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
|
|
|
Thread Tools | Search this Thread |
|
|
#1 |
|
diyAudio Member
Join Date: Jan 2005
Location: The Nebraska Panhandle
|
I received a poorly built chip amp in partial trade for a good one. I was working on it, but I rammed a drill bit through the undersized, overvoltage toroid. I bought an amp that'll suit my purposes better, and I'm ready to get rid of whats left.
signal PCBs, chips and chassis: The LM3875s are in "HiBou" PCBs. They worked when I took it apart! (aside from the hum due to the goofed up grounding the builder employed). The chassis has a perforated steel top that I didn't picture. How about $20 for this mess? The PS board is a chipamp.com/brianGT with the 860 diodes. It has a couple of 4700uf Nichicons soldered in, as I was about to add regulators. $10? The regulators are brand new. They are the NTE versions of the LM338K. My local shop had them in stock, so I gave them $16 each! New K package are $10 each at digikey. As you can see, I sloppily cut some AL angle to fit, then added an isolated screw. You should be able to P2P the necessary caps and resistors onto that (assuming you put the big caps on the diode PCB). These are brand new, never used. I can through in four basic 100uf caps. Ad resistors appropriate to your application, and you should be set. $15 for the regs, "heatsinks" and caps? Or, $40 for the whole thing. Again, the regs are brand new and cost me $32. Just at a transformer and you are good to go! Paul Wild Burro Audio Labs - DIY Full Range Speakers |
|
|
|
|
#2 |
|
diyAudio Member
Join Date: Jan 2005
Location: The Nebraska Panhandle
|
|
|
|
|
|
#3 |
|
diyAudio Member
Join Date: Jan 2005
Location: The Nebraska Panhandle
|
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
|
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| In need of a lrage heatsink for my chip amp, any ideas where to get one? | Boscoe | Chip Amps | 12 | 13th July 2010 01:24 PM |
| Regulated PS for Chip amp | jomesh | Chip Amps | 6 | 17th January 2010 08:50 PM |
| LM3886 & Others Chip Amp Heatsink Clamp Solution | MartyM | Chip Amps | 7 | 18th October 2007 04:36 PM |
| Yet Another 3875 Heatsink Question | dsavitsk | Chip Amps | 0 | 4th April 2005 05:29 PM |
| Trade your DAC parts for chip amp parts | jeff mai | Swap Meet | 3 | 12th July 2004 03:51 PM |
| New To Site? | Need Help? |
| Page generated in 0.15289 seconds (32.64% PHP - 67.36% MySQL) with 11 queries |