hifigeek1
Responses from hifigeek1
| New KT150 tubes? At this point I do not recommend using the SED6550 (winged C).Before production stopped, (the factory burned down supposedly), these tubes became very problematic. I only use the 6550we at this point. | |
| Luxman SQ-30u noise You may have a dirty or intermittent tube socket on the noisy channel. | |
| New KT150 tubes? Amen to that! | |
| Anyone talked to Dean from PSE? I had been out ill... | |
| regulator in AR D70 You can read the zener diode numbers and look up what their voltage should be. Better yet, I would suggest getting your amp to an ARC warranty repair place before you possibly rip the through hole plated traces up and then it's not worth repairing. | |
| regulator in AR D70 I thought I gave you all the voltages you needed to check to make sure the regulator was working properly and why post this here? | |
| Phase Linear 700 & 400 series II Never owned one. Had to work on them though. | |
| Phase Linear 700 & 400 series II Ya...they blowed up real good! | |
| McIntosh to be on How It's Made this Thursday Thanks for the heads up on that. Would have been nice to have the whole show dedicated to the Mac tour. I still don't understand the l.e.d.'s under the small signal tubes. I guess I'm old school. | |
| Phase Linear 700 & 400 series II They tend to like to blow up.... | |
| When to recap? A ploy for income purposes??? That is baloney. It is true that many Mac solid state amps have G.E. computer grade electrolytics in the main power supply that can last quite a long time. The axial tubular caps in your Mac should be replaced. The ru... | |
| Audio Research Corporation ARC Reference 600 Let me also add that since you have speakers that have a 102dB sensitivity @ 1W 1 meter, noise becomes more of an issue. The Ref75 should be quiet enough, but what kind of preamp are you using? The s/n ratio of some tube preamps would be low enoug... | |
| upgraded fuse holder I'm assuming the .5A fuse is for the screen supply of the tube amp in which case I might use a ceramic fuse vs. a glass fuse as glass fuses can shatter. Any properly rated fuse holder i.e. from Littlefuse etc. should work fine unless the amp uses ... | |
| Audio Research Corporation ARC Reference 600 Although I am an ARC warranty repair station and would be happy to service them for you, the fact is with a total of 32 6550 output tubes and 8 regulator 6550's you have multiplied your chances of arcing a tube by a large percentage. Unless you ne... | |
| Audio Research D70 mark1 + schematic I've never seen a bias pot fail in a D70 or D115. They can get noisy however. It's 65mV as you are measuring across the resistor. |