jose

Pet Shop Boys "Fundamental"

Thanks Pars, I´m doing a regular Dynalo MKII. I guess that I have the last pcb´s (Rev 1.2, blue pcb with through hole resistors and SMD sand). I supposed that I could use the LTL-307 (It´s the "standard" ) but in the BOM that I found there behind pointed to the ref. 351-5001. I don´t know why. So if I can use the LTL-307ELC, better. I have a ton of these leds.

I have a doubt with the LEDs. In the BOM there is one of Vf 2v (Ref. 351-5001). it is right?

Romain Collin "Press Enter"

I follow the thread because it seems an interesting project. Would there be big differences between the Dynahi-bal and Dynafet? What characteristics should the new Mosfet have?

Yes I bought it and price is for TWO matched pairs. But.... on DIYAudio you can find reliable sellers that have Toshiba stock (GR and BL grades) at a better price.

What is the problem with LS? I bought a quad of LSk170/lsj74 on DIYAudio a couple of months ago but I still haven't compared them with Toshiba.

You need a Carbon...

thanks you guys. I have two channels working with 2SK170/2SJ74 and now I'm listening to new amp, seriously. No noises, crunches, "low noise"... I'm starting to enjoy it again. I´m very happy. Lesson learned now that I'm going to start my Dynalo Susi

0 noise. I'm using 2sk170/2sj74 [emoji1] With Toshiba Jfets is very stable, offset closed to 5~0 mVolt on both channels On R channel I'm using a THAT "good" (1 of 6) I hate this shit

Because sometime 2sk170/2sj74 are difficult to find. http://www.diyaudio.com/forums/showthread.php?t=312426

Thanks spritzer. Last night I saw a F5 with some modifications and this uses this device.

Can be the LH0033CG a good option?

Thanks!!! Add to my favourites. This is more reasonable. (17€ vs 120€ ) LSK489 (To-71) 7,6€/unit but they haven't LSJ689

LSK489/LSJ689 looks good but I can't find where to buy them... OK, I only find trendsetter but shipping costs are terrible.

Any recommendations for dual Jet or dual bipolar? soon I will start my Dynalobal and I want to buying for components to test in both amps.

Do you have the cold channels bridge to ground? Edit: and volumen pot to 0

I would like to experiment with something like that.

1/8w? Do you have the BOM? You should use 1/4w

Thanks for the answers and photos guys. I also use Mill-Max sockets so I discard a connection problem... but yesterday I was thinking of soldering a THAT with noise to a socket and try this again. I have nothing to lose. Maybe I bought a lot with some kind of problems I bought 6 units I had 3 with issues. However, now I like the idea of using two set of 2SK170/2SJ74GR. This is a more expensive solution but I have units for this. Those who have tried this, what do you prefer? I mean use a THAT or JFETS. Thanks

A very special album for me; David Gilmour "On An Island" Remember that night...

Thanks Dr. Gilmore. My ampli sounds amazing in both SE and Balanced, but as I can change the THAT by another solution. I have several Jfets in my "warehouse" so I'm tempted to make a small mini-plate for them.

I have been reviewing the entire pcb and I have not encountered any problems. Solder is OK, resistors, sand seemed intact too. So I installed the board and decided to change the THAT340 as it´s the easiest component to replace and the most prone to make noises and ... Bingo! Totally silent. Fortunately, I placed these components on the bases. This is the third THAT340 that I change by different noises. Has anyone else had problems with them? I've bought it at Mouser so they are original.

This old XRCD: Reiner and Chicago Symphony Orchestra, Tchaikovsky: 1812 Overture