Coupling caps on long wires - Page 2

AndrewT · 14th November 2011, 11:07 AM

Virtually all amplifier inputs have an input offset voltage. This voltage must be isolated/blocked from passing across the wiper/track junction.

somejohndoe · 14th November 2011, 03:04 PM

I had another look at the second cap and there does appear to be a very small (0.4mV) DC offset across the cap. This was near the limit of the meter's range (time for a new meter!) so I guess I didn't capture it first time. Thanks for all the help.

14th November 2011, 11:07 AM	#11
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Virtually all amplifier inputs have an input offset voltage. This voltage must be isolated/blocked from passing across the wiper/track junction. __________________ regards Andrew T.

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
no coupling caps	ray bronk	Tubes / Valves	2	20th May 2008 07:10 AM
Coupling caps.	Trebla	Class D	5	1st March 2006 09:12 PM
coupling caps???	AudioGeek	Tubes / Valves	14	16th September 2004 12:05 PM
What value for the coupling caps?	roibm	Parts	12	23rd March 2004 05:58 PM
long wires in chain	Trist	Multi-Way	4	8th January 2002 10:23 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

14th November 2011, 03:04 PM	#12
somejohndoe diyAudio Member Join Date: Jul 2010	I had another look at the second cap and there does appear to be a very small (0.4mV) DC offset across the cap. This was near the limit of the meter's range (time for a new meter!) so I guess I didn't capture it first time. Thanks for all the help.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)