don_c55

Responses from don_c55

Single Source Tube PreAmp?
The Manley STEELHEAD tube phono stage can be setup as a preamp and has a very good following. Many reviewers considered it "state of art" a while back. 
Solid State Phono Pre-amp Recommendations
Buy a used Pass Labs Xono for $1800 to $2200!Many adjustments and settings - gain, resistor, capacitance for "ANY" MM or MC made!Simple circuit, great reliability!Many great reviews and awards! 
Bandwidth question?
For Your Information!http://www.cco.caltech.edu/~boyk/spectra/spectra.htmHigh frequencies above 20Khz matter! 
Turntable speed accuracy
My last post should end this thread.The VPI SDS adjustment, a strobe and light bulb, or a $100 KAB strobe, "are all" about as accurate as your AC line frequency!How do all you "SUCKERS" feel, that payed $100 for the KAB BS! 
Turntable speed accuracy
AC line frequency in the US is adjusted within .02% and accurate within .033%, the KAB strobe is accurate within .03%.AC from the power line is as accurate. The KAB website info is WRONG! A light bulb and strobe disk is as accurate. END OF STORY!!... 
Turntable speed accuracy
HihoThe drive system on the TW Raven just is not perfect, that's all.Does the TW raven have any "measurable" wow and flutter, or rumble?The VPI TNT III and IV with SDS and their motor, flyweel, and belt system have "UNMEASURABLE" wow and flutter a... 
Turntable speed accuracy
HalcroSutherland designs "CRAP" cold sounding phono stages!They sound similar to HALCO amps!The turntable in the video has a wimpy low torque motor drive system!!Needle drag does not slow down "Properly Designed" turntables! 
Turntable speed accuracy
HalcroSutherland designs "CRAP" cold sounding phono stages!They sound similar to HALCO amps!The turntable in the video has a wimpy low torque motor drive system!!Needle drag does not slow down well designed turntables! 
Turntable speed accuracy
The turntable speed should be at least as accurate as the tape recorders used to record, master, and playback the tape.Constant speed is "much more" important than absolute speed.Just buy a strobe disc and illuminate it with a light bulb.The 60 Hz... 
How do you test different tubes?
Elizabeth is right.NOS tubes in any quantity are all gone, used, and burned out, and have been since the 80's.Only the Russians and Chinese have made tubes in any quantity since then.The Russian tube factories are controlled by the Russian mobs, a... 
CPI super platter vs. Classic aluminum platter
The VPI super platter is a rehash of the TNT 3,4,and 5 platters which are superior to solid aluminum (that rings).The old TNT (I like the TNT 3) platters were Aluminum, cork, lead, acrylic, sandwiches, balanced to aerospace standards, and cost for... 
Why 24/7 warm-up period on amps?
Warm up in SS amps after 24 hrs is mainly due to the temperature of power transistors stabilizing, (with music playing). The electrical characteristics of transistors are very temperature sensitive, and the heatsink/transistor thermal lag can very... 
Why 24/7 warm-up period on amps?
Some people do not want to wait an extra 2 or 3 hours for their amp to sound at it's best, every time they listen! 
ZYX cartridge looking for advises
Another suggestion!Listen to your system for at least an hour before adjusting the SRA/VTA.When records are cut, the cutter head is set to 92 degrees with a microscope, and as a result the correct playback SRA will be spot on, with 80% of LPs. The... 
ZYX cartridge looking for advises
When you set up the ZYX, set the arm height (SRA/VTA) as follows:With a light shining behind the Stylus the diamond should be 92 degrees (2 degree tilt forward) resting on a record with typical thickness. Use a magnifying glass. Compare the angle ...