Skip to content
View in the app

A better way to browse. Learn more.

www.Head-Case.org

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

stax mafia electrostatic portable

Featured Replies

On 6/3/2023 at 8:27 PM, DaveLTX said:

faster

I focus only on my subjective feelings.

 

I also noticed that when using adapters through transformers - I can listen to them at a higher volume without overload than with any transistor amplifier, absolutely any

  • Replies 129
  • Views 44.1k
  • Created
  • Last Reply

Top Posters In This Topic

Most Popular Posts

  • kevin gilmore
    kevin gilmore

    In progress Amp design by me, power supply designs and circuit board layout by kerry, support by birgir +/-300 volt power supplies.  complementary push pull all bipolar design with cmos sty

  • Making some good progress on the amp... I’ve got the USB-C PD all soldered on and ready for testing   Here’s the face plate with the jack    Here’s the amp assembled, bu

  • Some more good progress.  The amp is up and running   I've got two issues on the board, but the amp, power supplies and USB-C PD / battery management are all working great. The wires going t

Posted Images

17 hours ago, usa_love said:

I focus only on my subjective feelings.

 

I also noticed that when using adapters through transformers - I can listen to them at a higher volume without overload than with any transistor amplifier, absolutely any

Transformers have real capacitance and inductance, semiconductors have far higher speed as a result than that when properly driven. Semiconductors have neglible inductance in this situation, maybe yes if you're talking about GHz range... I want to see that transformer reach GHz ;)

  • 2 years later...
On 4/17/2023 at 3:31 AM, kevin gilmore said:

birgir pointed me to this. hvrv portable

published price is $380 plus shipping.

Looks like I got one

photo_2025-10-10_21-21-11.jpg

photo_2025-10-10_21-21-15.jpg

photo_2025-10-10_21-21-17.jpg

photo_2025-10-10_21-21-19.jpg

  • 2 weeks later...
On 10/21/2025 at 8:35 PM, Omega_ELS said:

Looks like I got one

photo_2025-10-10_21-21-11.jpg

photo_2025-10-10_21-21-15.jpg

photo_2025-10-10_21-21-17.jpg

photo_2025-10-10_21-21-19.jpg

where? 

On 11/3/2025 at 3:24 PM, Michelag said:

where? 

I can sell you mine))

Edited by Omega_ELS

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Important Information

By using this site, you agree to our Terms of Use.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.