herman

Responses from herman

Power supply variations-
I forgot to mention that some warts are AC and some are DC, that also must match the original. 
Power supply variations-
Are you sure it is millivolts and not milliamps? 800 millivolts is too low to operate most stuff.Wall warts are rated for:The amount of voltage they develop; this MUST be the same as the one that is replaced. The maximum amount of current they can... 
NEW MUSIC
Who is Elliot Carter? 
How can I safely remove Optrix from my CDs?
Hi precbsed, did the manufacturer have any explanation for this cloudiness? Did they produce a bad batch of this stuff or is just not a good product? It must be undesireable to have it cloud up or they would not have advised how to remove it. 
How to bias...
Easiest to use is an auto-ranging digital meter, less than $50. You want to use the DC voltage setting. The manual should tell you how to do this. Maybe the guy at RS will know but I doubt it. Be careful. If you ask he will try to sell you a cell ... 
Best SET Compatible Speakers, $4k-6k used
Yes, I forgot about the Brentworth. I have heard them and they are very good. I assume they are still in business as their website is still active. Worth checking out. 
Help, I'm going crazy with vinyl noise
In case anyone is interested, I found the problem. The sound had gotten much worse so I took off the cartridge to inspect it. My eyes aren't that good and I can't see the stylus very well when it is mounted. I gently pulled on the cantilever and i... 
DYI diffuser kits/plans
I have also searched for info on this but this is the best I have found. There is enough here to build some but it doesn't give details on how to calculate the upper and lower cutoff frequencies, just some examples. 
Best SET Compatible Speakers, $4k-6k used
Twl is correct, the Lamhorns would be an excellent choice and can be had new for less than $6K with a choice of drivers. I have DX3 in mine. I would have gone with AER but they are 16 ohm only and my amp is 8. I think they come in 8 ohm now but I'... 
SACD - what gives?
The answer to your question is very simple. For the most part, they don't exist. To have them means that the recording studios have to convert to machines capable of making these recordings. If you ask the same question about DVD-A recordings you ... 
I recently emailed John Atkinson of Stereophile
I've gotten stuck with "The Audiophile Voice" several times. Recently when "Listener" folded, when the "Tracking Angle" folded and it seems like when FI went under.The only redeeming quality is that it takes so little time to go through it that yo... 
Any electronics wizards? Tube problem with RM-9
There is a negative DC bias voltage applied to the grids of the tubes. If you lose this voltage the tubes will run wide open and blow the fuses. That is a likely explanation. A cold solder joint in the bias circuits could be the culprit or some pa... 
Wash, Cut, Polish & Demagnetize
I found this site about how compact discs work that may shed a little light on the topic. 
Help, I'm going crazy with vinyl noise
Thanks so far the suggestions. Marakanetz, I have tried another transformer so that eliminates it as the culprit. I built a simple high pass filter to eliminate subsonic frequencies, no help. I am now pretty well convinced that something is wrong ... 
Help, I'm going crazy with vinyl noise
Thanks for the advice Pbb. It is good to know that somebody is out there beating the "perfect sound forever" gong. I actually have a DVD-A player that I enjoy using to listen to the 10 discs I was interested in buying that I don't already have on ...