Would I know if my caps are not connected?

sounder · 23rd September 2003, 12:45 PM

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

JOE DIRT® · 23rd September 2003, 01:39 PM

mounted to what>???....the Board??...or do you mean you connected the N/C pin??? in the circuit

sounder · 23rd September 2003, 02:05 PM

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.

quekky · 24th September 2003, 07:32 PM

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

millwood · 24th September 2003, 08:29 PM

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.

23rd September 2003, 12:45 PM	#1
sounder diyAudio Member Join Date: Sep 2003 Location: Toronto	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

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

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?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

23rd September 2003, 01:39 PM	#2
JOE DIRT® diyAudio Member 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

24th September 2003, 07:32 PM	#4
quekky diyAudio Member 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

24th September 2003, 08:29 PM	#5
millwood 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.