Leaderboard

made these a while ago Still loaded with BJTs,I think I should try JFETs as well

Harvested an old Cardas Headphone cable to make a balanced cable for the HD800. Neutrik 4-pin XLR connectors. The HD800 connectors are from Parts Connecxion and a royal PITA to work with.

Yeah, no way on that paqui chip. That looks terrible. Fish n chips however, look great! Tonight had Rock shrimp and bay scallops in a spicy tomato sauce over spaghetti

Re-cabled the HD800 for balanced connection. Cardas Headphone cable, Neutrik 4-pin XLR.

RIP Fats. And RIP Robert Guillaume at 89. I worked in the media department for California Lt. Governor Leo McCarthy while Benson was on TV. We set up an event for the real and fictional Lt. Governors and I got to meet Mr. Guillaume briefly and observe the event. He was just as suave and gracious as he was on TV.

it would be nice to come up with some universal layout that would take all the available options that340, 4 x single jfet,2 x dual jfet,2 x dual bipolar... yes pars posted the picture I was thinking of, I even found the board

Ah, the good old Cardas Smurph cable. That takes me back.

I saved that pic but can't find it here is my SSDynalo with jfets N channel on top P channel on bottom

Lance before he took up fencing

This was a long time ago, but perhaps it is useful to recollect:

you either add a unbalanced/balanced to balanced input stage which adds lots of parts and space, or supersymmetry which forces a low input impedance. so let me explain further, lets say you have an amp with a gain of 5 now you put 1v on both the + and - xlr inputs. Output voltages are +5 for both. Difference is zero, but if you have unbalanced headphones, then 5v on the headphones which is bad now you do the same thing to a true differential amplifier. Output voltage is now 0 for both channels which is why a true balanced amp removes any common mode voltages and noise this does not help you with a single ended input. or a single ended input converted to balanced. In the first case there is 5v on the SE output. In the second case the + output has +5v and the - output has -5v

How did I miss this completely?? Inner Fidelity RMAF video:

Fuck, how did I miss this... Happy Birthday Dusty! I hope it was good.

RIP Fats.. http://www.bbc.com/news/entertainment-arts-41753839

Although I opted for a JLC SS bracelet fitted to the JLC Master Ultra thin, I couldn't get used to the fit, it was either too loose or too tight after having a link removed, and was told there are no half links available for that bracelet. So I've used that Master as part exchange for a JLC Reverso Grande Ultra thin ( Manual wind ) shown in the photo. Should be receiving that Reverso either Friday or Saturday.

Yeah, I’ve always been extremely thin also. But I was also really coordinated. So through sixth grade I was considered athletic, and usually picked early, but after everyone got bigger than me some time in middle school, I was suddenly not very athletic. Sadly, my basketball career ended. But my life as a geek started! [emoji106]

well then my Jfets are exactly backwards for K170 J74 but those are K246 J103 so OK (if it matters) they did work fine here but not so in Dynahi, used K170 J74 the silk is marked so Emitter – (E) >> Source – (S) Base – (B) >> Gate – (G) Collector – (C) >> Drain – (D)

I also saved it and did find it (if it is the one Kevin was thinking of)...

Lim-osine is so appropriately nerdy, assuming it's referring to the DNA/RNA base! All of them are good, though. I was a very scrawny kid who always got picked last and a very late bloomer, I didn't reach my final height of 6'2 until I was 22.

Haha. I like Justin Time and Bieber fever! My other nicknames unrelated to being Asian, were plays off my last name: Slim, Limburger, Limbo, Lim-osine, Out-on-a- ... Those were fun, though. I like trying to come up with fun nicknames for colleagues at work. It just makes the day more fun. No sports growing up? What’s wrong? Too busy doing your math, computers and violin, hahaha? Oh wait a second ... [emoji6]

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

Holy crap, finally got this thing running right after like two years. My last screwup was actually having the multimeters reading voltage at the test points for the current on the output stage as I turned the supply voltage up. The leads were leaking or something even though they were supposed to be rated for that voltage. So when they were getting close to breakdown is when the noise and meters would start acting up. No multimeters attached except for balance and offset at the jack and it powered up perfectly. 60hz hum was entirely from the variac too. Listened to it for about fifteen minutes, left channel as regular carbon (driver + pair of 5k ballast resistors) and right as circlotron, and was impressed I could actually hear the difference. I was just hoping no noise problems at this point honestly. A couple minor notes on stuff that might be helpful for anyone else. In Soren's servo notes, the 5K resistor is the 500 ohm. Probably a 5000 code RN60 or something was the confusion I guess? I just bent the #2 opto leg up and away from the socket and soldered the 200ohm resistor to it directly so I wouldn't have to cut any traces. Everything else went together easy just as written. Almost everything has an open through hole slot from pulled parts or an easy place to hook up under a terminal. While the servo keeps the driver at about dead 0 balance and offset alone, through the output board it sits at about -5VDC offset and .2VDC imbalance. But it keeps it right there so I haven't fooled with it like Kevin recommended. Other than that, since last time I put new DIP sockets in the Output board, moved the sink mounted current resistors to a bracket on the Output board to shorten the wires and reduce the parasitic capacitance and make the output board easier to pull and service. Heat dissipation isn't as good as being directly on the sink, but still plenty I would think. Should hopefully finish all the stuff for the left channel tomorrow and see how smoothly things go when the output stages are turned on at line voltage from the internal relay instead of slow variac power up.

He seems very humble, probably too humble but quite welcome in a world of Trumps. And yeah, his style of play slashing all the time causes the injuries in the first place so hopefully he can develop some range with a nice step back or pull up game and maybe play a few more years. People called me similar names when I was growing up (Jackie Chan/Bruce Lee, not Jeremy Lin) but I also had a whole slew of other nicknames based on my name, like Justin Time and Justification, Timberlake, Bieber Fever, etc. I wish someone called me Jeremy Lin, especially as a fellow Taiwanese American, but I didn't play a single minute of sports growing up...

Am now officially obsessed with Alex Cameron. "I got shat on by an eagle, baby. Now I'm king of the neighborhood, and it feels like I could ... just peel the gym pants off a single mother -- but this run of good luck don't got me feeling all that good."

A little T2 tube rolling goodness

Fish and chips @

Happy Birthday Peter, You purple ramen eating, cool cat! *birthday noise*

This is what it looked like with adapter boards replacing the small tubes - ECC88/6922/6DJ8.