rodman99999

Responses from rodman99999

Microscope for stylus inspection
Dweller- The seller of that album may not have ever cleaned it before playing. Grooves that are worn by styli actually sound more muted than when new, as they've been, more or less, "shaven." Dirt that has been melted into the vinyl by stylus pres... 
Cary rocket 88 vs dynaco st70
Output capacitors? What are those? I've owned both amps. Had no noise from either, at all. Over the years I had upgraded the coupling caps, multi-section cap(which could be your issue), and added some capacitance to the B+ supply(plus a few other ... 
Why Rhodium?
Willoamp- Read this: (http://www.corrosion-doctors.org/MatSelect/corrgold.htm) Especially the first line, which states that gold is the most NON-REACTIVE of ALL metals. 
Help: Tube roll for Cary 120S
Here's Upscale Audio's process for tube testing, burning and matching. Kevin even has a 90 day warranty on his tubes. The customer service is hard to beat, and should a tube fail, down the road say a year or two, he can provide a tube that matches... 
Amplifer Wattage Question
Here are a couple a simple-to-built LED audio output meter schematics. Easily fast enough to register peaks. They're limited to 10 power levels, and won't give you fine measurements though. (http://freecircuitdiagram.com/2008/09/13/audio-power-met... 
Why Rhodium?
Some may consider Rhodium an, "excellent" conductor of electricity, but- to what are they comparing it? Silver's conductivity is 106, Gold's- 65 and platinum is 15 on the Electrical Conductivity chart(copper is considered the reference at 100). Rh... 
Tube help
I misunderstood your question, thinking you were seeking a method to affect a repair(on your own). Contact KR, and see what they say: kr.audio@tiscali.cz 
Tube help
Try finding some "Gap filling" SuperGlue(cyanoacrylate adhesive). It's thicker than the regular SuperGlue. If you trickle some of that between the base and the envelope, then flash cure it with a shot of Zip Kicker Accelerator(By Pacer), it MAY cu... 
6L6 tube recommendations requested
(http://www.upscaleaudio.com/SED-quotWinged-Cquot-6L6GC_p_65.html) OR (http://www.upscaleaudio.com/SED-Winged-C-EL-34_p_63.html) For a warmer presentation; Kevin offers the Genelex Gold Lion reproductions, which are also a reliable tube. Check out... 
retubing and would like to hear input from others
In most ANY amplifier, upgrading the rectifier will provide a most definite improvement in sound. The power supply is providing the voltage/current to your speakers, as modulated(YES- that IS the correct term) by the musical signal. Any improvemen... 
Tube rolling 6922 tubes looking for transparency
That's the same seller (http://shop.ebay.com/member/?_frompage=findamember&_adv=1&_userid=audiotubes_de&_tokentext=383655&tokenstring=MqcnIwQAAAA%253D) that I've used for CCa's, 7308's and E188CC's. He's very reliable and scrupulou... 
Tube rolling 6922 tubes looking for transparency
I've been using Siemens CCa's(from the late 50's-early 60's) for a number of years(six in my CDP, lately), because of their transparency, frequency extension, bass accuracy and sound stage abilities. The CCa was a specially selected 6922 family tu... 
Best Alternatives to Black Gate Caps
Parts Connexion still lists a 3.3uF, 50V PK Black Gate on their site(click on Black Gate, bottom of page). (http://www.partsconnexion.com/t/catalog/CapacitorsElectrolytic.html) I wish Sanyo would produce their OS-CONs in higher voltages. 
Is this clipping or just high SPL?
Perhaps it was a stretch when I assumed most understood; a single classical guitar, a small chamber group, an acoustic jazz or blues set, through Heavy Metal bands or philharmonic orchestras playing fortissimo(ffff) all produce, "live" SPL levels,... 
Elusive Tube-Amp Hum
As Mr L mentioned; the problem could be a cold solder joint on a ground connection, or a loose ground terminal on one of the RCA jacks. That the problem didn't occur at the shop, without your interconnects, does make them suspect as well. Cheaper ...