eguth
Responses from eguth
| help, please: hum on active buffer stage AballI set the digital multimeter to the 20V range. The following results were obtained:RADFORD valve to PASSIVE PREAMP AC = 0.00 DC= 0.00RADFORD to QUAD preamp PS AC = 0.00-0.01 DC= 0.00 RADFORD to PASSIVE BUFFER PS AC =0.00-0.01 DC = 0.00 The on... | |
| help, please: hum on active buffer stage Aball: Great. Will do. I'll get back to you in due course. I have managed to isolate the cause to the Radford valve amp. I did this by removing the mains plug from the wall socket to the passive preamp active buffer stage. There was virtually no c... | |
| help, please: hum on active buffer stage AballThanks, I found your suggestions helpful Things are getting complicated.My preamp consists of three stages: i) a MC transformer (no hum from this of any appreciable amount, and it stays the same); ii) a Quad 44 preamp, converted to a phono... | |
| capacitance with a 100VA transformer Perhaps I should have added that the IR Hexfred rectifiers used in the PS are rated at 8A 600V | |
| capacitance with a 100VA transformer Thanks.Is it safe for me to increase the capacitance to 4400uF or, even better, 6600uF? I don't have the tehnical knowledge to work out the answer.The reason for the query in the first place is that I have a VERY SMALL amount of hum, and have had ... | |
| Madrigal cartridge loading? In case this response is not too late, I had a Madrigal Carnegie a number of years back, until it broke down and could not be repaired. It sounded wonderful. I do not know whether it was the Carnegie 1 or Carnegie 2.I loaded it with the 3 ohm sett... | |
| earth lift resistors AballThanks. That clears it up nicely. I was worried about 'underkill'. I go for overkill as a matter of routine- especially with regard to anything with a safety aspect. I was under the illusion that a very high resistance would be equivalent to ... | |
| arm mass/ cartridge compliance mismatch Thanks for your responses. I am pleased to learn that this is not a good idea; vdH certainly will rework any of his cartridges; but at a cost. I would prefer to be sensible and either use a cartridge that suits the arm or order a special 'one off'... | |
| arm mass/ cartridge compliance mismatch Many thanks for your informative help. And I shall look into the Allsop Orbitrac- it sounds very interesting.Can you hazard a guess whether a van den Hul FROG (recommended arm mass 6-10g- compliance 35u) would work in an Audio Kuzma STOGI arm (mod... | |
| Any Info on the New Gold Lion KT-88 you may be interested in what is on the Tubes Asylum. They have a GL KT77 Reissue Report there.Eguth |