kevin gilmore

so the problem with most power supplies is that the diode switching noise rips right thru the first pass device and then everything after that is not fast enough to get rid of the noise. So that is what the invert stuff at the front end of the GR to remove as much of that as possible.

the one tantalum cap across the zener could stay at 25V, but for up to 45V output voltage, the other tantalum cap should be rated at 35V or higher, there are 50v tantalum caps but they seem not to be stocked and then you would also need a higher voltage opamp

chip amp and transformers. yuuk

its the latest one.

my balanced/unbalanced/cast to balanced/unbalanced. but its a pile of transistors, single resistor gain control, and would need a buffer for low impedance loads.

how very threshold benefits, one channel gets trashed, replace it, disadvantages, board costs

3 feet is fine, make sure the wire is 600v rated, I use 18 awg no filaments so no reason to twist 7th wire should be a chassis to chassis wire, power supply needs to have power input ground tied to chassis

measure with a voltmeter to ground, each side.

the pdf picture sure looks like the alphas who knows who actually makes them

she divorced him. and for really good reasons too. ray is very abusive (no one saw that coming) i'm sure others can point to ray's wedding photo, was on his facebook account... She did not look happy, but hey ray has lots of money. and a couple of expensive and now horribly out of date cars.

when the issue of the juice can caps (laser power supply caps) being wired together, clearly unsafe by the product data sheet, jude took mikhails answer over the product data sheet and deleted all posts... But ray was jude's personal friend so he got special treatment. wonder what jude thinks of rays new barely legal new Asian import wife.

final board file for the transportable just posted http://gilmore.chem.northwestern.edu/boards/SSDynalo-v1-4.zip this is Kerry's work, very amazing

If that has a 10mhz pure sine wave output, then other than power supply and other monitor stuff associated with it, that is all you need. the complete unit actually has the same part in it that is sold on ebay as a module plus the power supply, and likely an output buffer. But the name of the game is 10.00000000mhz (or better accuracy) with a jitter of less than 100 femtoseconds. which my beast actually beats on both frequency and jitter by a fair amount. (one month accuracy verified against a primary caesium beam clock, less than 1 x 10-12 seconds) personally I think this is overkill to the extreme. The only reason I did it was I was given the thing for free, and was challenged to make a 40+ year old monster work to original factory specifications. And i'm supposed to be emptying out the house, not dragging home nonsense like this. But it really is a patek phillipe movement, 19 jewels. A thing of beauty. And a rubidium lightbulb, a magnetic microwave chamber, a rubidium phase splitter etc... Old school

I was going to but then I tried to figure out why I should respond. If someone does not understand that an electrostatic amp is ALWAYS going to cost more than a dynamic amp due to the quantity of parts and the voltages involved, there is no hope. and remember that any of the designs I have released ( 3 of them) that use the emission labs 20B tubes are double or triple the parts cost due to the tubes, makes a T2 seem cheap.

here is my new patek phillipe wrist watch. carefully refurbished, all new capacitors etc... and my new secondary reference word clock

2 or 3 oz copper for the dynalo boards to get rid of more heat

better than a S class!

its supposed to be +/-22V check polarity of all electrolytics could also be a loose ground

extraordinary this is how they should be built.

ceramic insulators with white thermal grease and the appropriate bushing and screw

you want to use one of the linear isolators to drive one side of the bias circuit.

reverse engineering a product has been declared to be legal in the usa. see landmark rulling Emulex vs digital equipment corp. publishing a schematic that you have done is also legal. If you have an original copy from the manufacturer it is not legal to publish it. I don't know about copying an exact circuit board layout. Likely if you have the original gerber files and modify them, probably not a great idea. But if you layout a board from what you see, probably acceptable. lifting code from on board microprocessors may be an issue.

120ma thru 10 ohms is... 1.2 volts at least that is what I remember

got a scope and signal generator? pics of the 2 phases please at about 1vpp

an early version of that board had the ground missing from one of the capacitors. put the opamps in and see if there is any sound change. without the opamps there is an additional feedback loop