Parrot Posted June 20, 2004 Share Posted June 20, 2004 IB, Did you figure anything out? Check all the dumb stuff first, like that the volume controls on this power amp are not turned off. That the speaker wires are connected to the amp and to the speakers. That the fuse is working--take it out and see if the wire is broken. With the unit unplugged, take each tube out one at a time, carefully, holding near the base, and then put it back in nice and firmly. Make sure that your preamp is connected properly and has the volume up some. Make sure your music source is connected into your preamp properly. Etc. Considering the seller is willing to take it back with no hassle, he did not send you a known dead unit. So it may be something obvious that you are overlooking. Quote Link to comment Share on other sites More sharing options...
Deang Posted June 20, 2004 Share Posted June 20, 2004 I recognize that soldering Mark, similiar to what I did on the Blueberry while in Arkansas. Quote Link to comment Share on other sites More sharing options...
Marvel Posted June 20, 2004 Share Posted June 20, 2004 Does the variac have a meter on it (mine doesn't), or do you have an external meter to check to make sure the correct voltage is hitting the amp? Those pics I found of that amp look like it is all point to point wiring. This must be something simple. Marvel Quote Link to comment Share on other sites More sharing options...
Parrot Posted June 20, 2004 Share Posted June 20, 2004 I'd try it without the variac at all. Quote Link to comment Share on other sites More sharing options...
ssh Posted June 20, 2004 Share Posted June 20, 2004 Terry, I hope it's only tubes. It sounds like you're waiting for Gadot. I have no advice, only empathy. Dean, I didn't see you get scalded, & thanks to you, we got to enjoy the Blueberry. Thanks again. SSH Quote Link to comment Share on other sites More sharing options...
IB Slammin Posted June 20, 2004 Author Share Posted June 20, 2004 ---------------- On 6/20/2004 6:05:56 PM Marvel wrote: Does the variac have a meter on it (mine doesn't), or do you have an external meter to check to make sure the correct voltage is hitting the amp? Those pics I found of that amp look like it is all point to point wiring. This must be something simple. Marvel ---------------- Pulled the cover and could see nothing obviously wrong to me. The variac has an amp meter, and it does not get off the peg. tc Quote Link to comment Share on other sites More sharing options...
IB Slammin Posted June 20, 2004 Author Share Posted June 20, 2004 ---------------- On 6/20/2004 6:07:45 PM paulparrot wrote: I'd try it without the variac at all. ---------------- The unit clearly states 100v. Don't want to take the chance of frying the thing if I end up returning it. Thanks, TC Quote Link to comment Share on other sites More sharing options...
Marvel Posted June 21, 2004 Share Posted June 21, 2004 Terry, I'll ask a dumb question -- are all the tubes in the right sockets? I assume the tubes were packed separately. Marvel Quote Link to comment Share on other sites More sharing options...
IB Slammin Posted June 22, 2004 Author Share Posted June 22, 2004 ---------------- On 6/21/2004 7:43:00 PM Marvel wrote: Terry, I'll ask a dumb question -- are all the tubes in the right sockets? I assume the tubes were packed separately. Marvel ---------------- Marvel, There is no question as dumb as I am about tube amps. I will re-check them tonight, but there are four matching output tubes and four matching imput tubes. Would there be an order in the placement of the same tubes? I am depressed. I have emailed the seller. Perhaps he will want to pay for me to have it looked at here before I ship it back to him. Thanks, Terry Quote Link to comment Share on other sites More sharing options...
Parrot Posted June 22, 2004 Share Posted June 22, 2004 ---------------- On 6/22/2004 3:59:15 PM IB Slammin wrote: I will re-check them tonight, but there are four matching output tubes and four matching imput tubes. Would there be an order in the placement of the same tubes? ---------------- No, that wouldn't matter. Quote Link to comment Share on other sites More sharing options...
johnnyp Posted June 22, 2004 Share Posted June 22, 2004 Did the seller use/test the amp in the states with a variable power supply/ voltage converter? U.S. power generally varies between 110V - 125V depending on location. But I don't know if it's safe to plug made-for-Japan electronics directly into American outlets. Quote Link to comment Share on other sites More sharing options...
IB Slammin Posted June 22, 2004 Author Share Posted June 22, 2004 ---------------- On 6/22/2004 4:43:43 PM johnnyp wrote: Did the seller use/test the amp in the states with a variable power supply/ voltage converter? U.S. power generally varies between 110V - 125V depending on location. But I don't know if it's safe to plug made-for-Japan electronics directly into American outlets. ---------------- John, The seller claimed that he did. I know that I am starting to "grasp at straws" but with his permission I might ease the voltage up a bit. Again, the pilot light is on and output tubes are luke warm and input tubes stone cold. If it had been converted to 110v-125v, and I am putting 100v into it, I would think that the tubes would glow anyway. ?? But just sound weak. ?? I can't see anything that glares at me on the inside. There is a little bit of a black substance on the bottom of the inductor coil however. Thanks for the help, Terry Quote Link to comment Share on other sites More sharing options...
Marvel Posted June 22, 2004 Share Posted June 22, 2004 As Paul says, it wouldn't matter about the four tubes regarding placement. It uses SS rectification, so there isn't a rectifier tube (doh! I know, it was redundant). I was just thinkin' that an output tube might have gotten into the rect. socket, but since there isn't one .... It is a cool looking amp. Marvel Quote Link to comment Share on other sites More sharing options...
NOSValves Posted June 22, 2004 Share Posted June 22, 2004 I'd be checking for a B+ fuse under the chassis. It sounds to me like there is no B+ present. Quote Link to comment Share on other sites More sharing options...
Marvel Posted June 23, 2004 Share Posted June 23, 2004 Here are pics of the same model amp on the inside. Not THE amp, but the same model. I can't see any fuses anywhere. Quote Link to comment Share on other sites More sharing options...
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