Oldsansui441
Super Member
Hopefully you should be ready to go now. Sounds like you building a nice little arsenal of test gear.
Hopefully you should be ready to go now. Sounds like you building a nice little arsenal of test gear.
For the resistors I'd just buy the eBay equivalent and use those. You can get 100w resistors in enough flavors to wire a few together to get the required ohm/watt rating for a lot less than $40.
I've used my 100w rated resistors up to well over 150w for short periods of time and have had no problem. For cooling I just had them sitting in a puddle of distilled water in the bottom of a square baking dish (yes, not the correct way to do it but they survived). Just don't touch the resistors to anything you don't want melted/boiled because even at 10-20w those little things get hot.
so I can only test/adjust 1 channel at a time. Will that be a problem? I wouldn't think so but better to ask before...
Looks like you are all ready to test/adjust. Glad you got out of the resistor thing cheaply and that variac is a nice looking piece of gear.
I don't see a problem with running one channel at a time on an SS amp (apparently not a good idea to run a tube amp unloaded) , to be sure maybe just run the 1khz test signal into the one channel being tested not the other.
I was looking over the manual today and have come up with another question. Adjusting the ZDR pots it says to adjust to the lowest distortion. So I'm getting the feeling that I would need a distortion analyzer for that? (Which I don't see a way that I can afford?) Or can that be done with an oscilloscope? All of this is something that I've never done yet so I still have a lot to learn.