Cheap Chinese 6P3P kit
- Thread starter Big & Pink
- Start date
siliconray
Member
WOw sled you did a great job! Clean and nice looking!
You guys kill me. Anyone, and I mean anyone, who, after, reading 'Ray's' posts, looking at his website, giving some thought as to where this kit is coming from, , and STILL thought it worth a flutter - "oh, but it is soooo cheap!" - on this amp? Well, as they say, you gits what you pay fer. Me? I'll stay on this side of the pond, thank you.
oldtexasdog
Well-Known Member
siliconray
Member
phono kit is under developing. You'll find at least 15 new products from us, all developed by ourselves, at the killing price 
I'm so happy to see more and more of you get the kits work. Hope Tanner can finish his preamp project. I must thank sled for his great work, it encourage Tanner to believe this is a working kit.
I'm so happy to see more and more of you get the kits work. Hope Tanner can finish his preamp project. I must thank sled for his great work, it encourage Tanner to believe this is a working kit.
BrokenHill
Well-Known Member
Sweet Mother of Music....The PreAmp is Singing...On the First Shot. Right now it's making the Sirius Radio sound Good, and that's no easy Feat. And, it's Dead Quiet as I dare go up to only 1:00.
Wow! that looks great, nice work you did.
John L
Chief Bloviator
Anyone notice how the power supply, and the rest of the preamp, are almost completely separated from each other. Sure cuts down on the possible interference I would think.
I wonder if a metal partition would further keep any hum from bleeding over into the preamp circuit? Just a thought.
I wonder if a metal partition would further keep any hum from bleeding over into the preamp circuit? Just a thought.
Well I tore into my preamp, and moved a bunch of things around. It looks like the pictures. And guess what It still hums???? This project may be over my head. I'm thinking about giving up. I spend 4 hours redoing the preamp. It looks great, good solder joints. The wires are routed nicely. I dont understand what I'm missing???
I guess I should just stop getting upset about this project. But its really hard not to. I dont know every thing, But I have followed this tread and looked the pictures over, Plus the emails to members on this board and siliconray as well. And I still can't make this thing work correctly. So whats the secret? This kit is really not worth the headaches, I feel like a failure, and that I have wasted my time and money. Again thanks to all the members that have helped me thus far. So do I throw it in the trash? put it on barter town ? or just give up on the whole thing and let is go to someone that wants to mess with it finish it. Clearly I can't do it.
Describe the hum.. Both channels? Constant? or does it change with volume?
I feel your frustration cuz i went a week trying to quell a hum in a console amp that I rebuilt. I had no replacement pre amp tubes on hand to try in it. I finally found one locally. It fixed it. The first three nights I was convinced the hum was in both channels until I disconnected the one speaker.
You'll get it .. don't give up !
I had received a lot of help from the AK members on this site. I learned how to trace the source of the hum in the signal path. By shunting the signal to ground at any point in the path told me whether the hum was coming upstream or down stream from that point. If the hum stops, it is coming from upstream. I was careful to stay away from the high voltages. The fact that only one channel was humming told me the power supply was not to blame.
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60 HZ hum on both channels?? I ran a signal test through the preamp @ 1000 HZ with just a speaker attached to the out puts to check for low level hum. It does amplifie the signal. I started tracing the signal all the way through it seems ok. The power supply is putting out over the stated 245 v? closer to 280 v I think the transfomer is got a little issue I'm not sure, I'll put it on the variac and adjust it to the correct voltage. I just cant see any issues, The wiring is correct (I think) the build is just about like the pictures. I placed the caps over as far away from the preamp as I could. all the wires are twisted in pairs? I'll post pictures tonight. I think I would feel better If I just removed the problem for my life, This is a real PITA and I wish I would have never got involved. I don't need a preamp I have a Mcintosh, and a Phase Linear.Both are worlds better than this thing. But I just want to know why it does not work? If its the build quality OK thats on me I can handle that, but if its the quality of the parts then I have a problem. As advertised (Easy for the beginner) LOL so not true
