Everything posted by jose
- Happy Birthday postjack!
-
HC Bike/Cycling Thread
Nice day with old friends
-
Nate's Cycling Adventure 2018 Edition - Back to the Century
Happy ride Nate!!!
-
What are you listening to Part the Third
The Philosopher Kings
-
Megatron Electrostatic Headphone Amplifier
It's been a little over a week since the mod finished and I agree with MWL comments. I think it's worth doing or trying it before making a final configuration. Now I am testing some valves for the first stage. The process is still very interesting (as always). I think I like to have valves with a higher Mu close to that of an ECC81 Thanks Kevin, MWL and Jim
-
And now what did you do TODAY?
In nothing you will see that you are well.
-
HC Bike/Cycling Thread
track of the bottom bracket (I guess that's how it is said in English) looks burned, so first there was no grease there and on the other hand at some point, something (dust) entered and jammed the bearing. Are you sure that the tracks of the bearings are completely smooth? If you continue to disassemble the bike maybe the store refuses to accept the guarantee, be careful about it. Edit: Looking at the last picture you have put it looks like the bearing track in the bottom bracket case is quite scratched.
-
HC Bike/Cycling Thread
I also think that the bearing has seized. Can be water or dust too. Did not you notice anything strange while pedaling? noises or heaviness
-
HC Bike/Cycling Thread
Last pictures
-
What Are You Building Today
A Carbon sandwich Maybe?
-
The ultimate DIY? A Stax SRM-T2!
Just out of curiosity, how much can a set of T2 pcb cost? With all due respect, $ 1295 seems to me an excessive price for a set of plates and the corresponding sand. What is clear is that despite everything there are always people willing to take risks and buy their things.
-
HC Bike/Cycling Thread
If you have "good wheels" (other cyclists of a similar level or a little higher than yours) by your side, setting a pace and giving relief, it should not be a problem to reach the finish line and set a good time. The problem is if you hook from the beginning to a group stronger than you, in a few kilometers you will be exhausted. In my case, the trick is to shoot, shoot, shoot ... and the day of the race, enjoy especially if you go with friends. Although you still have time, I wish you luck. At the end of September we have the flight to Gran Canaria and this year will be especially hard.
-
HC Bike/Cycling Thread
When I have to do those distances, I always get nervous. I guess it's normal. In the islands we make those distances but you never have "flat" areas so you have to go reserving for the next mountain pass. I think the best thing if you are insecure is to get into a group whose rhythm is similar to yours and keep a steady but affordable rhythm from the beginning. Does the route you have to do have a lot of elevation?
-
HC Bike/Cycling Thread
Thanks!!! No, I haven´t it. Normally we make the return by bike as well and the speeds we reach usually reach up to 80Km/h in some places (at the exit of the town of Teror for example). Yesterday when the road was cut by the race we got off in the team's bus. La volata
-
HC Bike/Cycling Thread
I wish the slopes here were so soft. ? Garmin is an American company … it is they who should be clarified with their software ?
-
HC Bike/Cycling Thread
Piece of cake [emoji23] [emoji23] [emoji23]
-
HC Bike/Cycling Thread
Ready for tomorrow [emoji41]
-
RIP someone or another
RIP Aretha We´ll never foget you...
- RIP someone or another
-
Megatron Electrostatic Headphone Amplifier
Sorry Jim I means R21K
-
Megatron Electrostatic Headphone Amplifier
Thanks Jim for explanation Changed R11 for 1.65K and I had around 245~250vDC in all plates. I was not happy and I tried with 1.5K, now I have 235~240vDC in all plates with 1mA plate current. So I guess that now is more correct. Right? Now I need to change R21 because I have 290vDC and I would like to have all correct voltaje.
-
Megatron Electrostatic Headphone Amplifier
Thank you. All the tips are well received of course. Okay, last night I was also thinking about lowering R11even more but I don´t know until what value I can lower it. Maybe 1K ?... I have right now is 1.95K so I'm going to try to lower this value up to 1.5K easily. I'm thinking about Jim's comment about the total value of R11 + R12. Do I have to compensate R12 obligatorily? On the other hand, change R12 you say that should not significantly affect the plate voltage.
-
Megatron Electrostatic Headphone Amplifier
I made the mod. Modify R6 and R7 at the same time as R11and R23 with the values indicated by Mwl. My data are now: 12AX7 volt plate: 270vDC Voltage Before R11: 12.7vDC and between R11 and R12: 11.7vDC I have not modified the resistance that manages B + 300vDC but now it is at 290vDC. Should I change the value of the resistance to get to 300vDC or can I leave it like this? I need some time to assess everything but in principle everything looks good.
-
And now what did you do TODAY?
Good luck!!!
-
Megatron Electrostatic Headphone Amplifier
I have homework for the weekend… ??