Tech Square

Interesting cable problem, need ideas

74.138.144.88

I have a cable design as follows: 8 runs of a twisted pair of 28AWG, solid core wire. Each twisted pair contains the + and - leg. Each of these + and - legs are then soldered together and terminated at the ends, making the cable.

The problem is that some SS amplifiers run hot with this cable. Tube amplifiers are ok.

The problem goes away if I make the cable as follows: 4 seperate runs for the + and 4 seperate runs for the -. These are not twisted but bundled together. SS amplifiers run ok with this.

Is the problem inductance with the twisted pair version? Perhaps amplifier oscillations?

Is there a fix for this that will allow me to use the 1st version, the twisted pairs, with the + and - leggs twisted together?

Follow Ups:

RE: Interesting cable problem, need ideas - bwaslo 09:23:51 05/17/08 (0)
Too much capacitance? - Ted Smith 15:43:40 05/09/08 (1)
- I agree - Russ57 07:58:09 05/12/08 (0)

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.