luvdunhill

I have the Cross-Spectrum microphone and was going to use the ULN-2 mic-pre. Do you know if SpectrumFoo can accept a mic calibration file?

anyone have experience measuring room response with SpectraFoo?

Still more expensive than ordering from Japan. I am glad to grab anything you are interested in!

So, this * 1000, thank you for the suggestion! I am doing a group buy at DIYAudio for high performance (Kerafol) custom die cut TO-3 insulators. If anyone is interested, please PM me!

Here is one more shot. I just sent off for the Teflon sleeving for the screws and pins. Also a little lab case with some low distortion oscillators, that is in progress. Needed a bit more voltage swing at times than the QA401 could provide.

I would try to make the Box Series 5 fit. More here: http://www.boxenclosures.com http://www.boxenclosures.com/category/product_details.html?product__id=241584 Trimmer depend on 13 or 25 turn, gull-wing or j-hook. Depends on hand soldering or not. Copal makes some nice small ones.

Your opinion would be great! It's 6mm bracket, 0.375" copper and then the heatsink back is 8.5mm. Here is a photo:

Here is my experimental approach to mounting TO-3 devices without the expense of machining angled brackets. Not the most efficient way to mount things, but maybe it will be good enough. Oh, and yes that's the Harris logo. As it turns out, the IRF240 devices feature larger diameter pins that wouldn't fit in my PCB sockets. The '244 features the same diameter as the IRF9240 as it has it (if you can find them). I would love some Harris 9240 if anyone has a source!

It would come down to a suitable app ecosystem, assuming streaming.

I can if you can provide some feedback on some changes send me your e-mail!

Agreed with everything here:

I think an extra hump is merited at the end of that tag

Chilled in a private hot spring

Nice Stax display at Yodobashi Camera

Heh, some sort of Japanese Pirates!

Not even Kevin?

Paging Naaman...

Only addition to this is transformer vendors specifying a very high temperature rise or going extremely high on the flux curve are making these calculations hard. So, in addition to these guidelines, you really need to have conservative ratings - or specify them yourselves, which few do.

Does this kinda work like Goldschlager? I am confused here

Here are some links to consider - there are important things to think about, like line variance, duty, AC RMS current versus DC current, etc. http://sound.westhost.com/xfmr.htm (Read all three sections) http://www.electra-print.com/custompower.php

Heh, the custom stuff is wound in Canada still.

I suppose my questions would be: How much current does the amp draw (measured) and how much headroom do you have from the spec'ed current? Do you have any DC on the line or things like dimmer switches, etc. that would cause noise? Are signal grounds isolated from earth and in general where does the E pin go (have you implemented a ground loop breaker scheme, etc.)

Anyone need anything from this vendor? Need to hit a $250 minimum: https://www.rocelec.com/