Search found 612 matches

by Gold
Wed Jul 31, 2019 4:47 pm
Forum: The Peabody Lounge
Topic: home improvement turns into science fair projects?
Replies: 83
Views: 4864

Re: home improvement turns into science fair projects?

I drive a minivan for much the same reason. It's a 2008 but its just coming up on 100K miles now. It's a Honda so it should make 200K without breaking a sweat. Cosmetically it's pretty rough but mechanically it's good. I've kept up with the maintenance. I end up having to move audio equipment on a r...
by Gold
Mon Jul 29, 2019 4:47 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

Maybe this deck is a different value from all the others? Talk to P&G? I don't think so. The smallest value I get on any of the decks at the top of the throw is 25Ω. On the deck I played with the smallest value I could get was 37Ω and that was very touchy. I can't consistently get that value. It's ...
by Gold
Mon Jul 29, 2019 4:08 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

I'm not throwing good money after bad. Once it's dis assembled it's easy to see the construction method. I clamped the shaft so it wouldn't move and very gently rotated the disc after loosening the set screw. 37Ω was the smallest value I got on that deck before it went open circuit. So far the small...
by Gold
Mon Jul 29, 2019 3:32 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

I played with it a little and I'm not hopeful. The smallest amount of resistance I can get on this deck, at the top of the throw, by rotating the brass disc with the wipers, is about 37Ω. This is the most accessible rear deck. If I can't even get the first deck I try to behave I'm not hopeful about ...
by Gold
Mon Jul 29, 2019 2:55 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

I'm not sure I want to become an RF-15 expert. I can see a day or two disappearing trying to fix these. I have a quote coming for TKD's. If the TKD price isn't too bad I'll just bite the bullet. I can use these elsewhere if they require a bunch of attention. Finding the sweet spot by experimentation...
by Gold
Mon Jul 29, 2019 2:15 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

I popped the back on this and took a look. I think I see what's going on. The shaft is smooth without splines. The wiper is two small fingers. The wiper is attached to a brass disc which sits above the stationary resistive track. The brass disc is held in place by a set screw that pushes against the...
by Gold
Sat Jul 27, 2019 5:12 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

mediatechnology wrote:
Sat Jul 27, 2019 2:29 pm
Something just doesn't seem right about the 700Ω or 25Ω wiper resistance.
Were these new when you bought them?
I agree something isn't right. I bought them new from Dale Manquin who is no longer with us. I'm going to attempt to dis assemble one and see what happens.
by Gold
Fri Jul 26, 2019 1:00 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

JR. wrote:
Thu Jul 25, 2019 6:14 pm
If you open it up a caterpillar may pop out.
All six decks are measuring the same. I'll consider myself lucky if a caterpillar crawls out. I have a feeling I'm S.O.L.
by Gold
Thu Jul 25, 2019 2:37 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

Re: T Attenuator Termination Kluge

By series resistance are you describing the wiper contact resistance between wiper and top of the pot? 25 ohms seems a little high, 700 ohms seems faulty. Yes that’s what I am describing. I agree 25 ohm seems high and 700 ohm seems faulty. Unfortunately they are not made or supported anymore. I’m t...
by Gold
Thu Jul 25, 2019 12:24 pm
Forum: Pro Audio Design
Topic: T Attenuator Termination Kluge
Replies: 42
Views: 7130

T Attenuator Termination Kluge

I've run into an issue with one of the Output Amplifiers of my console. The P&G RF15 rotary fader I'm using has a series resistance of about 700Ω at the top of the throw. The other RF15 is less than 25Ω. It took me a while to suss that out. The signal path for the Output Amplifier is: Balanced to un...