luvdunhill

So, working on another panel. This time, everything is PCB mounted. Unfortunately, I cannot get everything to look just right. I'm using a PCB mounted DACT attenuator, and due to the slots in the extrusion, I cannot get it exactly to be at center. Also, I have two switches on the front that are used to control input section. One on the left and one on the right. My question is, what sort of text to I put above / around the switches? On the rear, I label one input "A" and the other input "B". The toggle goes up and down, not side to side. I cannot find anything that looks right to me. I have "Left Input" and "Right Input" over the switches and nothing else at the moment. I'll post the panel later on, as somehow FPE crashed and I lost my work ...

hot

SSMH kit from Tom. What an insanely good value. I cannot remember the last time I bought a full kit, and it serves as a gentle reminder of the insane number of parts that go into even the most simple builds. The packaging is hands down the best I've ever seen, including anything I've attempted through my various group buys. I nominate Tom B. to put together some T2 kits

did you just swap parts, or did you also ensure the part changes didn't cause instability? Looks from Doug's analysis that this requires more care than the typical "modder" is willing to take...

ok, to answer Doug's question, the case from FPE is $165 shipped. The ends are 3.0mm thick and 181.2mm x 56mm and contain ~30 holes and some text. The front is $24 and the rear is $35. The 2.5mm thick bottom panel contains a few vent holes and the necessary cavity to fit into the extrusion. It is $44. The top is approximately the same price and contains two larger holes for the tubes. Total size for each is 167mm x 228.6mm. The extrusions themselves are $7 each and are 228.6mm long. I didn't include any hardware, as I would want fancier fasteners than what they sell. Grr..

what are the dates?

(100) 1.0 ohm 2W resistors @ Digikey (P1.0W-2BK-ND) and a few other things for testing a few new prototypes...

socketed relays. Now, why didn't I think of that?

Power conditioner? Night lights?

Parts Connexion. Check out the Teflon Composite for the 12ax7 and 6SN7 (no loktal PCB mount I know of)... PcX is cheaper than the 'bay on these last I checked. For 845, not too many options to choose from. Slightly cheaper than the tefcom sockets are Azuma sockets, also available at PcX. If you want to spend some money, there is always Yamamoto:

Trafomatic Audio HEAD ONE

Audez'e LCD-1

cool stuff

spent the last 10 hours cracking a piece of software... still not finished. This is the one thing you always outsource to the Russians, they're really good at it these days. So far, this binary does the following: garbage code. lots of it hides OEP, replaces original code with metamorphed garbage code. damaged import table does not use "GetProcAddress" but directly traverses DLL export table rdtsc crap closes Olly windows and other anti-debugging tricks SEH nonsense damaged EXE header has its own TLS table ... and more.. Still not done, but a lot closer.

The size is too large to take advantage of most prototyping deals, so it will be pretty expensive, probably 3x-4x that cost would be my guess.

oops, just noticed this. I'm still waiting on the final files from Jacob, so you'll have to get the layout from him. I'll be sure to post once I get them off to the fab. I think the final BOM is more or less the original schematic, plus the changes I outlined above for the bias (for your case specifically). There was one more resistor change that Kevin suggested that will effect the bias, but I haven't tried that myself, and it probably won't help your case out all that much. Someone was asking about minimum gain, and I think 5 is probably a good number for that.

yay, I knew this thread would come in handy. So, my question is regarding pin 9 on 6dj8, 6kn8, 6922, 7308, etc (i.e. the shield). I also want to be able to use 12.6v tubes that use pin 9 as a CT, like 12AT7, Ecc99 (I'm not sure if there are any 12.6v only tubes of this ilk, but if so maybe support them as well). What's the best way to handle this pin on a PCB? I have an earth connection that connects to the XLR shields as well as the shields on my input transformers, as well as a circuit ground. Also, what to do with the CT when it's not being used, in the case of 12.6v operation of the 12AT7/ECC99, ground it? Is there some configuration that will work well for all the above tubes? Thanks!

... with excellent stereo separation!

I need to have room to slide the case on, then insert a 6SN7, so roughly 1.5" or larger, depending on how accurate I can center it over the socket location. I think the other top was 50 mil thick, so I assume this is about the same.

So, I think this will work. My only concern is that this has the same vinyl clad steel top as another case I used.... and drilling this was a massive fail. This time, I need to drill tube diameter holes, so I'm a bit worried about that, because if I mess up the top, the case is more or less ruined. I definitely don't have the equipment to do this, so I'm wondering what are the chances of me finding a way to cut the holes cleanly? Perhaps a punch would be the ticket here?

ok, I give. How much room is under the PCB for these cases for the widest, tallest, deepest option (CW2X90-XXXX-XXXX): http://www.lansing-enclosures.com/main/media/micropak_c_techdata.pdf Some pics show more than one slot, and I cannot find a dimension anywhere that shows these, so it's probably one of those engineer things of let's see how few dimensions we can put and make the reader have to do as many calculators as possible to find what they're looking for Has anyone used these cases before?

heh, again I think it depends. For me, turning off all the lights and using a back lit CRT is the best. Old SGI and Sun monitors to be precise. There have been times in my life that I've been staring at a monitor for some pretty insanely long periods, like 48 hours straight. I'd be interested in what you find though.

Does use a CRT count?

ok, sent requests out to two people. Couldn't figure Smeggy's account out, so you'll have to send it my way instead. Dan contacted pfkman32, so... we should be good!