jea48
Responses from jea48
| Is this describing a blown tube, or two blow tubes? @tonydennison Before installing new power power the bias pot(s) should be turned back (turn the bias pot(s) counterclockwise), so as to not over bias the new tubes. Not doing so can damage perfectly good new tubes. "Output tube bias should be s... | |
| Is this describing a blown tube, or two blow tubes? Last night there was a very loud POP and one of the tube went bright so I moved quickly and turned of the midmonos. The amps ran great this evening until just now, and another POP and bright tube, but it seemed like it was the other tube, but ... | |
| System Static Issue On average small signal tubes in ARC equipment lasts about 5000 + hrs. The static could be caused by dirty tube socket/tube pins contact. You might try pulling and reinserting each tube a few times one tube at time in each socket. Usually that wi... | |
| System Static Issue Tomorrow morning just turn on the Bedini Amp. Do not turn on the preamp for a while. Listen for the static noise. If you hear static it's not the preamp causing it. . | |
| Krell KSA 200s ground hum @strawj said: I had that Amp, the hum was unreal, it would hum Loud when it was off on standby and kick up in the morning when the Mr. Coffee came on. If I understand your post correctly the loud hum you heard from the Krell Amp was a mechani... | |
| Krell KSA 200s ground hum @ieales said: Verify that XLR pin 1 is connected to the line earth. It may have a low value resistance like 10Ω if there is a loop break. As for the Krell amp, yes pin 1 is grounded to the chassis through a resistor. Seems to be only a 2 ohm r... | |
| Krell KSA 200s ground hum @mofojo said: Preamp with nothing connected to it causes same issue. Did you install a ground cheater on the krell power cord like I asked? If yes, still a loud hum? Ground cheater on the Krell amp only. Nothing connected to preamp inputs... ... | |
| Krell KSA 200s ground hum Are you using the OEM power cord that came with the Krell Amp? Is there a ground loop hum with only the preamp connected to the Krell amp? (Nothing connected to any of the inputs on the preamp. No other type of ground wire(s) connected to the pre... | |
| Audio Research in Receivership. In August 2020 Trent Suggs who was a sales manager bought the struggling company (Nobody seems to know where he got the money). It appears ARC/Trenton Suggs, borrowed the money from Minnesota Bank and Trust, a division of HTLF Bank. It appea... | |
| Turntable weight affects speed Assume: Without the added weight the TT platter RPM speed is correct when playing a record. Add the weight the platter RMP speed slows down when playing, listening, to a record. ("It noticeably slowed it down.") Remove the weight platter RPM spe... | |
| Turntable weight affects speed Agree with @noromance. . From the manual: TD 850 Drive System: Thorens Belt drive Motor: Fully electronically regulated AC-Synchronius motor If the belt is clean/new and the bearing is lubed then the problem could be the added load on the AC... | |
| Music Hall Classic humming issue @fredb72 It sounds like the EMI (Electric/Magnetic fields from the 120V unshielded power cord that feeds the amplifier of the Kanto YU6 is inducing 60Hz EMI noise on the DC power cable that feeds the phono preamp in the TT. There could also be A... | |
| Tamper Resistant Duplex Outlets Leviton 5262 SWG 15A TR duplex receptacle. https://www.leviton.com/en/products/5262-sgw | |
| Tamper Resistant Duplex Outlets One example of a good 20A Spec Grade TR duplex receptacle. Extra heavy duty non plated brass contacts and non plated brass back strap. https://www.amazon.com/Leviton-5362-SGE-Industrial-Tamper-Resistant-Receptacle/dp/B007ZRL53W?source=ps-sl-shop... | |
| Music Hall Classic humming issue @fredb72 How close is the TT to the Kanto YU6 speaker with the amplifier? Your problem could be the TT cartridge and or RCA interconnects is picking up EMI from the 120Vac power cord. Try to increase the distance between the TT and the speaker ... |