hifigeek1
Responses from hifigeek1
| New KT150 tubes? As far as I know the KT-120 tube as well as the 6550we have a useful life of 2000 hrs. | |
| New KT150 tubes? ARC is in the process of testing this tube. They are in the process of life testing the tube as well as sonic evaluations. They have not come to any decisions as of today. When I hear something more I will post it to this thread.. | |
| ARC VS-115 Amp with new KT-120 Tubes If you check your owners manual you will find that the tubes should be biased to 65mV. The amp will sound it's best with the tubes running at 65mV not 57mV. | |
| New KT150 tubes? ARC are currently not using this tube nor have they sonically tested or life tested it as far as I know. They continue to use the KT-120 for those amps designed to use it. | |
| Who Can I send my dynakit ST-70 to for a rebuild? I rebuild them as well... | |
| Quad II/forty problem solved There may also be a solid state rectifier for another supply in that amp that may be shorted. It's also possible that a power supply cap is partially shorted or one of your output tubes is pulling too much current over time that causes the fuse to... | |
| Harman Kardon Citation 22 No Love? H/K was the first company to realize the importance of square waves and wide frequency response. H/K i.e. Matti Otala designed their amps, including the Citation 12, to output great square waves at both 20Hz and 20khz. A noble task. Most amps of t... | |
| is there anyone that modifies audible illusions? I mod them.... | |
| Audio Research SP-10 owner manual Circuit diagrams are only supplied to warranty repair stations. You might find a copy on the interweb. | |
| What might cause LOUD hum in a Conrad Johnson pv6 Given it's age it does sound like a power supply issue. | |
| Audio Research Reference 3 voltage conversion You can not convert the primary transformer windings to 220Vac on newer ARC products. This was done to protect their European Distributors. I also doubt they would sell you a replacement 220Vac primary transformer but anything is possible. If you ... | |
| McCormack DNA .5 - No Sound - Help Hyounessi It's possible your amp is not coming out of protection mode. You might have failed output devices or a defective protection circuit. Some of these units had circuit board issues as well. I would contact Steve... | |
| Tube amp down, need guidance from the experienced The tube arced a resistor may be open. I suggest you contact the McIntosh service dept. for further assistance. | |
| 5Z4 half-wave rectifiers replacement suggestion I believe the 5Z4 is a full wave rectifier and you can use a 5Z4GT if you wish. Usually the letters at the end indicate updated version, rugged version, glass envelope size and/or metal can vs. glass. | |
| LS25 MK2 Manual? There is a toggle switch on the front panel that says Bal/SE. Up for balanced down for single ended. Enjoy. |