Would I know if my caps are not connected? - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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
Reply
 
Thread Tools Search this Thread
Old 23rd September 2003, 12:45 PM   #1
sounder is offline sounder  Canada
diyAudio Member
 
Join Date: Sep 2003
Location: Toronto
Unhappy Would I know if my caps are not connected?

My second GC is running well and sounding better BUT I just checked the Nippon Chem-con pinout for 3 pin electrolytics even though I checked the caps with a meter, their pinout says I mounted the blank pin!! Would the GC sound as good as it does with the main caps disconnected and how can I test!

Not a big deal if it is so, I'd have to buy more but I was touting the improved sound with these caps

  Reply With Quote
Old 23rd September 2003, 01:39 PM   #2
diyAudio Member
 
JOE DIRT®'s Avatar
 
Join Date: Apr 2003
Location: Brantford, ON
mounted to what>???....the Board??...or do you mean you connected the N/C pin??? in the circuit
  Reply With Quote
Old 23rd September 2003, 02:05 PM   #3
sounder is offline sounder  Canada
diyAudio Member
 
Join Date: Sep 2003
Location: Toronto
Quote:
Originally posted by JOE DIRT®
mounted to what>???....the Board??...or do you mean you connected the N/C pin??? in the circuit

Yes, connected the N/C pin odf the cap into the circuit although, I just checked continuity w/ the power supply disconnected (open circuit I believe), the caps has continuity in one direction and sound is awesome so I do believe they're connected.
  Reply With Quote
Old 24th September 2003, 07:32 PM   #4
quekky is offline quekky  Singapore
diyAudio Member
 
quekky's Avatar
 
Join Date: May 2003
Location: Singapore
i've built tda7294 more or less according to the datasheet, using 220uF on each rail near the IC. and during the 1st time i tested it, i forgotton to add extra caps, and the music is shuttling. only when i add another 1000uF to each rail did the music sounds normal
  Reply With Quote
Old 24th September 2003, 08:29 PM   #5
Account Disabled
 
Join Date: Apr 2003
Location: US
I have built a minimalist lm3875 with just two resistors (my PS does have 3300uf filter caps on each rail). It worked well and adding additional filtering cap on the chip doesn't produce audible improvement. the chip has pretty good PSRR, I guess.

For stability reasons, I do use two by-passing caps.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Not connected yet Andy G Multi-Way 2 14th October 2006 09:20 AM
Never-connected clone? analog_sa Solid State 39 17th May 2004 11:31 AM
Must I have a TV connected? Timn8ter Digital Source 2 16th March 2004 06:27 PM
P3A Amp hums when connected to XO Patrat Solid State 7 15th July 2003 12:41 AM


New To Site? Need Help?

All times are GMT. The time now is 04:41 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2