Leaderboard

Under $2000, provided you (1) already have all the tools you need, (2) use an inexpensive volume control, and (3) keep your casework modest. (I did none of the above.)

A week ago we sat outside in short sleeves for dinner. It appears that my grand plan for doing something with those piles of bricks this summer is going to wait until next summer.

Stax Mafia: 'Taking the "FUN" out of SinglePower since 2000'

not going to happen! First you have to pay jim what he paid for the thing, something like $5k (certainly in the range of $4500 to $6500) then the $800 in parts I threw into it. And then say an additional $2k in labor. plus shipping the beast. and with it you get a bag of removed parts, wirenest and dead Russian sockets, trashed digital attenuator boards, fried voltmeter and buttons, various burned up resistors and shorted and stupidly expensive coupling caps (audio note silver) yes I kept all of that, its in a shopping bag. The second one birgir ended up with, had even more stupid in it. And all that is just the amplifier box. The power supply box was also a work of art. 350V caps running at about 475 volts. And no bleeder resistors But wait there is more. How about the SS1. I have that too. complete rebuild job. pay elphas (I think it was him) $14k, then $1500 in parts, and about $1k in labor... full of holes where STUPID used to be. Gone are the "FUN" knobs, and something we believe was the bias knob

Got the simple one built. I burned the boot loader, but was waiting on the FTDI stuff so I can easily program it.

There're RF emissions in that low frequency too, but AFAIK they're used by submarines and other military purposes. Funnily enough some recordings made in France, at some place I can't recall now which is next to a submarine base, show a low frequency imprint for the recording system tuning that carrier and converting it into sound in the mix. IMO it's more likely related to the Android smartphones issue, the exact frequency at which the problem starts seems to be 3958Hz. I quote from that thread:

Just catching up after a few days away, and am just reeling. Go for her jugular Steve - bring her as low as low can go. PS we get our cats from https://www.bluecross.org.uk/oxfordshire-burford-rehoming-centre , and fortunately these are the good guys. They give you a verbal third degree to make sure that you are the kind of person who can be trusted with a cat or dog from them.

It could be the frequency of his tinnitus. Noise induced hearing loss frequently shows a notch around 4KHz in the audiogram, and it's usually associated to tinnitus. I've checked and it's not exactly any note in the western "well tempered" tuning system (using 440Hz A as the reference), not so sure if you used a 432Hz A as suggested here: http://onlinetonegenerator.com/432Hz.html. However it's close enough to the seventh octave B (3,956.06Hz) and within its tuning range to think that it could be some sort of personal joke. It'd be helpful knowing if he's a musician. Maybe is a physicist and this is the resonant frequency of something he's working on. I've also found that android phones have some issue digitizing audio up to 3958Hz https://www.dsprelated.com/showthread/comp.dsp/335371-1.php

Was 85° today. At current time (8:30 pm) it's 75°.

You lost me.

Yeezh. I blame global warming.

Lasagna for board game night.

Yay, let's have this discussion again. It always goes so well. In other news -- Trump rules, God doesn't exist and I banged all your Moms.