rodman99999
Responses from rodman99999
| Variac differences and use You're right, and I've always considered the caps that were manufactured long enough ago to present a problem, inferior to current ones(whatever the year I was working on unit). I always replaced/upgraded the capacitance when doing a PS, or recomm... | |
| Need info on Beveridge RM-2 power supply please Rodger Modjeski designed the amplifier (RM-1) for the original Beveridge speakers:(Roger@ramlabs-musicreference.com) Rick Beveridge , the son of Harold Beveridge, has started Beveridge back up: (rbev@bevaudio.com) One of them could surely offer so... | |
| Variac differences and use I guess I've been extremely lucky all these years. The First Tube amp I built was a Dynakit ST-70. Their instructions(upon assembly completion)were to first test the voltages out of the power transformer, then insert the rectifier and test the vol... | |
| Anybody ever heard of EVI 6922 tubes? Perhaps you're thinking of these: (http://www.gcaudio.com/cgi-bin/store/showProduct.cgi?id=502), which are the best current production 6922s. | |
| Synergistic Research active shielding question Gfroman- You might try contacting this seller: (http://www.audiogon.com/cgi-bin/cls.pl?powrcabl&1250953807&/Synergistic-Research-X2-Series), And see if he's still got one of the used MPCs that he mentioned. I've seen the MPCs on eBay, quit... | |
| Synergistic Research active shielding question You can also dab some nail polish or enamel paint on the LED, to block the light. | |
| cable burn-in / system burn-in Obviously, given the dynamics of dielectric absorption; if a cable or capacitor is unused for a length of time, the energy absorbed by the dielectric will fully discharge. When put back into service, the dielectric will have to reach it's target(o... | |
| cable burn-in / system burn-in Lessloss- You apparently didn't read anything I posted. A dielectric will only charge to a degree, then it stops. That can be predicted, and therefore a cable or capacitor can be "voiced". I also stated that it's only part of the issue of burn in.... | |
| cable burn-in / system burn-in Any interconnect or cable will have as a component of it's construction, a dielectric. Cables/wires will also have a measurable capacitance, for a given length(they act, to a degree, as a capacitor). Other than a vacuum(the best dielectric) and ai... | |
| Suggestions for 'filling the port' of bass reflex The bonded dacron that I suggested will turn some of the acoustic energy in the port to thermal energy, and thereby damp it's resonance. Done correctly(not crushed or tightly packed), it won't impede the woofer's motion. It certainly will not dama... | |
| 5AR4 rectifier tubes - Chinese or Russian? I would invest in high quality, NOS small signal tubes first as well(like some good Amperex). They(the tubes in the signal path) will always provide the biggest bang for the buck. Still- Why would you want to rob yourself of all that the unit coul... | |
| How to tell if Acoustic Treatment is Needed? What Jax said! If the system/room interface provides you with what sounds like real/satisfying music to YOUR ears; COUNT YOUR BLESSINGS!! | |
| Variac differences and use A unit like this(10A) would suit your purpose nicely: (http://cgi.ebay.com/PowerStat-3PN116B-Variac-Variable-Transformer_W0QQitemZ220451775080QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3353f32268&_trksid=p3286.c0.m14&_trkparms=65%3A12%... | |
| Suggestions for 'filling the port' of bass reflex If you want to, "tone it down a little"; Go to a fabric/upholstery shop and get some (loose-not "felt")bonded dacron(http://cgi.ebay.com/Upholstery-Bonded-Dacron-Quilting-Batting-Padding_W0QQitemZ350220762258QQcmdZViewItemQQptZLH_DefaultDomain_0?h... | |
| Compatibly between Tubed and Solid- State Gear Some tubes are noisier than others. I've made it a habit to only install tubes that have been tested, and certified/graded, "very low noise" for use in any stage before(or in) a preamp. Lector also hand picks low noise and matched tubes for use in... |