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Treblog

I'm outta here

Wednesday, 21. October 2009, 10:44:02

I moved to: http://bert-treblog.blogspot.com/

Pass Labs B1 Buffer

Friday, 16. October 2009, 11:12:36

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I ordered a PCB for a First Watt B1 buffer preamp this week. I was planning on making this one using perfboard but the opportunity to order a high quality and relatively inexpensive PCB was something I couldn't let pass. I still was thinking about how to implement the large electrolytic caps. Now that's all being sorted by the PCB. I ordered the PCB from a fellow diyAudio.com forum member from Sweden and it should arrive early november.

This morning I cobbled together a JFET testing "rig". The JFETs for this project need to be matched for optimum performance. This means ordering more than the four JFETs I need, test each JFET on the rig and then pick two matched pairs.

I'm planning on making a few small changes to the schematic Nelson Pass has released for the diyAudio community. The big caps are gonna be 10000µF instead of 15000µF due to availability, 10000µF is still plenty of capacitance. This means R1 has to be increased from 1 Ohm to 1.5 Ohms to maintain the RC filter (R1, C1) time constant. The volume pot is gonna be a 50 KOhm since that's what comes nearest to the 47KOhm input impedance my CD player currently sees.


Far Cry

Monday, 12. October 2009, 07:25:43

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I've done it again! I've scored another cheap as chips game. This time I found Far Cry for only 5 euros. Great FPS game with lovely graphics. Because it's an old game I can run it with all video settings set to high. Very refreshing to see the game taking place not only in dimly lit cramped corridors but also outside in the bright sunlight on a tropical island. Driving around in the vehicles and using boats is great fun! A lot of great weapons are to be found in the game. Using a mounted minigun makes a quick end to a lot of enemy attacks.

Op-Art

Wednesday, 23. September 2009, 21:36:03

Strongly reminds me of some the works by Victor Vasarely.

iTunes 9 Genius Mixes

Thursday, 17. September 2009, 19:40:31

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I've just discovered the Genius Mix in my iTunes 9 installation. I've been toying with Genius a bit in the past but never really used it. Genius Mixes now has created 12 different mixes for me to explore and enjoy. I find that I usually listen to the same stuff very often. The Genius Mixes are a very nice alternative.

Paper airplane

Sunday, 6. September 2009, 21:33:05


Slow Aleph progress

Friday, 4. September 2009, 17:01:20

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The mini Aleph is slowly progressing at the moment. This week I bought some Prefer AV-24 cable to connect the RCA inputs to the amplifier boards. Today I bought some 2.5mm2 red & black-coloured cable to connect the amplifier boards to the PSU. Still left to buy is a 2x 15V / 225VA toroidal transformer. Still to do: drill and tap holes in the heatsink for the output MOSFETs.

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