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Doing some initial testing of my Megatron. This is the latest version from the GB with the 12.6v filament for the front end tubes. It's making music but I do have some more work to do yet. The Antek AS-2T350 with its rated 350vac secondaries (sagged to 340vac under load) proven not enough to sustain the 450VDC targeted regulated voltage. The GRHV regulated rails sagged to about 433VDC under the load of the Megatron. As such, the intended +300VDC for the front end measured only +264VDC. Also, the 2 Antek AN-0206 transformers I used for the CCS EL34 filament supply only measured about 5.75vac, within the 10% tolerance but a bit low for my liking. May need to explore other options. These with the main ac measured about 117vac. The output balance measured 2.8VDC and 0.7VDC and the offset measured -15VDC and -17VDC (L/R). A few points worth mentioning: 1. I use KSA1156 in place of the 2SA1968 (need to rotate the parts to observe the different pinout) 2. I use a pair of 7812/7912 in the LV part of the GRHV to supply the front end tube filament and the current sink. I mounted them on a 60mm tall heatsink and it appears to work fine for the jobs intended. 3. I am using the split GRHV boards with the CPC1117N delay. I used the 12VDC (with a series resistor to limit the current) from the LV through a toggle switch to manually control the HV delay. It makes for a bit of messy wiring but works fine. Back to work to adjust the GRHV for 425VDC rails and tweak the resistors in series of the B+ to provide 300VDC rail for the front end tubes. EDIT: Forgot to mention perhaps the most important point - the front end tube filament supply connection: if you are using DC filament like I do, make sure you connect the ground wire of the filament supply to the ground pin (which is marked 12.6v on the board) and the 12.6VDC supply wire to the other connector which is NOT the one marked "12.6v". The one marked "12.6v" is actually connected to ground.

Happy Birthday Fucker! Miss you bro.... Cheers... da Mikey

Not today or even yesterday but Thursday which follows Stretch's post. Provisions from my Italian wine courrier who just returned from Italy. The bottle on the left is a sort of special muscat blend the winemaker did for himself and his friends and they let me be a new friend to receive this gift of grape nectar.

And so it begins ... Is this the new Lippin’ ? Beardin’ ?

Seems I made Thinker, aka "person in charge of damaging the reputation and decreasing sales of Perrun" a bit testy. Ahh joy of joy's... Also funny how people keep going on about me offering up the HE90 frame with Lambda drivers for 6k$. Anybody want to guess how much two HE90 cups, the headband, cable, box and those insane little plastic gimbal pieces cost? Yup...more than 6k$... Ohhh and I got the last of these so no way asking Senn for any more... I did try to get a HE-1 without the amps and cable but they kindly refused.

Bonus wishes...

there is a difference in voltage gain. 6db.

Happy Birthday, Al! Hoping you have a phenomenal day!

some people like to gamble you know, especially with strangers probably some kind of fetish. everybody has their own thing so no judging. i'm just make hmmm noise and keep nodding my head and slowly move away

Schiit Audio will be partnering with us to sponsor the May headphone meet! They will be providing some of the funding and some of their current production equipment as well as several items that will be new to the market. The new equipment will not have been introduced in any venue yet. This will be its “sort-of” introduction! Grover Neville of Schiit Audio will be providing us an equipment list as soon as he is able. I will make sure the equipment listings get on this website as soon as I have them. There will be an initial list, which will be added to once Schiit Audio releases the new equipment they will be demonstrating. Grover will be in attendance as Schiit Audio’s representative and will be able to answer any of your questions about the equipment. In addition, Grover will also be contacting other manufacturers that Schiit Audio partners with and asking them to provide equipment also. He specifically mentioned Audeze! Looks like this meet may be a bit bigger than we initially expected! If you're planning on attending let us know on this forum so that we can get an approximate headcount! Remember that we will have both industry and enthusiast exhibitors. Let us know if you plan to exhibit!! John John Morrison, President, Founding Member Atlanta Audio Club Direct: 770-330-3919 mailto:[email protected] http://www.atlantaaudioclub.org

Come on Shel, start Beardin'! ™

happy birthday voltron!

¡Feliz Navidad, mi amigo de barba!

Happy Birthday

Change of pads and rotor.

Happy birthday Al! Sorry, no beard pic.

Cheers everyone! A Very Tall Man is buying new a burger and beer for lunch, so the rainy first day of Spring is looking up! Amazing! Best present ever would be a collection of pics of all my friends wearing one!

Happy Birthday , Al! Remember, what happens in Vegas, stays in Vegas. So getting a year older never happened, right?

Happy Birthday, Al! Have a great one.

Happy Birthday to the Bearded One!

Happy Birthday!

Hey Al, have an awesome birthday!

Happy Birthday Al!

Happy birthday Al! Sent from my iPhone using Tapatalk Pro

Happy birthday Al!

Happy birthday, DOTU!

Very Happy Birthday Al!!

Have a great birthday!

Have a spiffing day! Happy birthday!

Happy Birthday, Al!!! Enjoy your day

Happy Birthday Al! I hope you have a great one!

I don't know what you mean...

Put the finishing touches on our advertisement for a summer pre-nationals championship fencing camp. This camp which I have organized with some help will be a very high level elite fencing camp. We will have the gold medal olympic fencing coaches from the London, Beijing, and Rio olympics attending. Olympic fencers, one of which Daniel, is a two time olympic foilist who trains with Lance and a Italian olympian will attend with a few more possibilities in the works. We will be using a 24,000 square foot state of the art training faclity with all the bells and whistles included. Currently pushing to see how many foreign national team members we can attract, right now we have a couple of Russian team members and maybe a few Italians. This has all the potential to be one of the best pre national championship training camps in the country but either way it will be a great experience for the fencers who attend. A big plus is that the olympic coaches love California wines so we have a win win right there. Fingers crossed that I don't mess anything up.

Even with the grossly inflated prices cavalli eventually went under due to too many hands in the cookie jar and shit quality requiring a lot of repairs, especially the liquid carbon. when there was only one standard for measuring distortion it was easy. Now that there are a number of adc based distortion devices each with different firmware and software, and digital filters you can generate impossibly low distortion numbers that are meaningless. jude might want to look at how measurements were done many moons ago and emulate that. Far more useful information. i think a reasonable number on sales exceed 8M$ over the 8 year life of cavalli. Lots of people are going to take a bath, just like singlepower