kevin gilmore

Not funny. When i finally do retire i'm going to want to move to a smaller place in a warmer climate. No way i'm going to move over 3000 sq feet of vintage and rare electronics, mill , lathe, tons of tools...

A spoon full of this every morning really helps http://gilmore.chem.northwestern.edu/caffeine.jpg keep it under 800mg !

every one of the products on this page are opamps Apex Precision Power a lot of them come in packages that look like standard opamp packages. They are all discrete inside however.

The burson and audio-gd are opamps made from discrete parts. But so are dynalo, dynahi, dynafet, B22 and a whole bunch of other amplifiers including parasound,krell, levinson and all other fully dc coupled solid state amplifiers. I can always design something better with discrete parts than a single piece of silicon. Can't get it in that form factor however.

Sure you have... Bamaslama is servo bias, maintains 0 volts DC for dynamic headphones without an output capacitor. Would be extremely hard to do for the BH. Lots and lots of extra parts and power supplies. Does not matter as a couple volts of DC for electrostatics is meaningless.

you need to switch black and white at one end. To make sure the electrons go backwards.

The sea clock cannot be heard unless you are right on top of it. Even then you would have to listen for it. It beats once every 2 seconds. The atmos can't be heard at all. It beats once every 15 seconds (i think) If you want quiet, then get a congreve ball clock

I have a 1940's art deco version. Its in the shop at the moment for a new bellows and suspension spring. Putting it in the shop created an empty place that needed to be filled with another clock... estimate 14 week repair time.

I had to have it. I love mechanical things that are guaranteed to cause me grief in the future. http://gilmore.chem.northwestern.edu/jhseaclock.jpg

Well for the uberamp which idles at 1.5 ampere, they were great. They are a little noisy down in the dumps. But really each rail should run at 200 to 300ma, so it may be ok. They did at one time make lower current devices.

Don't know about the circuitry in the smaller units, but the monster monoblocks are a direct copy of the krell monoblocks less the regulated output transistors power supply. They really sound good, and the bang for the buck is silly. Built very well, and made in china.

use the in-line non contact hall effect current devices for monitoring the current. Same ones i used in the uberamp. Allegro | Hall-Effect Sensors | Current Sensors

Actually i do need help. I'm trying to find a single piece of burl walnut. I would like it to be a single crack free cube of size 10 x 8 x 6 inches or a piece of aged lignum vitae, same size. Fine: I want 8 circuit boards. I will assemble them myself.

The real question is whether the preamp output is buffered or not. It could just be the output from the pot... In which case it would be high impedance. Or the output could be directly from the input selector switch. I don't consider either of those 2 options a real preamp...

I don't think mikhail can count... 6 boards with 4 bipolar per board... Thats 24 Now what did you say mikhail was doing with his hands ??

Must see inside pics. Bet there are no blackgate output caps... Or blackgate input caps... or bipolar mascquerading as fets... bet there is no $10 usb to audio converter either... obvious fail and its way to cheap... and it works too...

vintage silver mica !

By the way i would like 4 boards minimum 8 boards maximum. I'll build them myself...

Lets see, I can buy the thing, gut it, use the really good yamamoto tube sockets wire in a bamaslama board, and end up with something really nice that looks like a crappy hand painted with a spray can singlepower... Yep, thats definitely it.

the denon is even worse than the sony. Its time to chuck all the legacy crap. And who in their right mind is going to use one of these beasts to actually run 2 rooms. No more s-video. No more composite video. No more component video. That empty's out more than half the back panel right there. And someone needs the brains to put in an atsc transmitter. (but that one is a bitch)

I expect that you will see the sony parts show up in the emm labs stuff sooner or later at silly pricing. I'll continue to use the krell for 5.1 audio output till an appropriate proc/preamp comes along. Then i'll get another sony. I figure for upstairs the perfect personal system is a 5400es and a bhse.

stax wiring diagram at the bottom right next to the koss wiring diagram. Both are complete and correct. there is also this http://en.wikipedia.org/wiki/Stax_Earspeakers

The feedback is EITHER from the output stage, or stage 2. Not correct as shown in jacob's schematic above. Or in multiloop, a resistor from the output stage to input- AND a resistor from stage 2 to input-. Plus compensation cap on the output stage, and possibly the second stage. I never messed with the multi-loop, and the prototypes have feedback from the outstage only.

good reference for wiring the jacks here ESP/950 Electrostatic Stereophone - Wikiphonia