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 Forum: Audio, radio, and electronics   Topic: Burning Amplifier 2013

 Post subject: Re: Burning Amplifier 2013
Posted: Sun Oct 06, 2013 6:23 pm 

Replies: 12
Views: 3638


... Particularly, he brought very interesting idea about getting polarizing voltage for condencer microphone capsule using optical devices that are being manufactured for solid state relays. But I ...

 Forum: Audio, radio, and electronics   Topic: Burning Amplifier 2013

 Post subject: Re: Burning Amplifier 2013
Posted: Sun Oct 06, 2013 6:19 pm 

Replies: 12
Views: 3638


... and we went to walk. When we come back he was standing in front of the public speaking softly, a microphone behind his back... I moved one microphone in front of him, so at least the end of his lecture ...

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Fri Apr 13, 2012 9:04 pm 

Replies: 18
Views: 6708


One heatsink with mounted on it semiconductors for 6.3V rectifier and stabilizer, for -120V stabilizer, and SemiSouth JFET for power stage.

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Tue Apr 03, 2012 10:45 pm 

Replies: 18
Views: 6708


layout with transformers (they are needed for switchable load impedance) - I want this amp to be more universal.

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Sun Apr 01, 2012 10:07 pm 

Replies: 18
Views: 6708


Making case.

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Fri Mar 30, 2012 8:43 pm 

Replies: 18
Views: 6708


Both heatsinks are ready.

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Mon Mar 26, 2012 7:20 pm 

Replies: 18
Views: 6708


Heatsinks will be mounted on side panels, transistors will be covered (up to 600V on them!).

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Sun Mar 18, 2012 11:47 am 

Replies: 18
Views: 6708


Here is the amp breadboard. HP/Paeco transformer from vacuum tube voltmeter will give me about 600V rectified. I will split it on 120V (negative supply) on a shunt regulator in series with load, B+ wi...

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Fri Mar 16, 2012 5:18 pm 

Replies: 18
Views: 6708


Classical books, for classical music...

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Fri Mar 16, 2012 5:11 pm 

Replies: 18
Views: 6708


Attachment:
mics3.gif
mics3.gif [ 252.13 KB | Viewed 5722 times ]

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Fri Mar 16, 2012 5:10 pm 

Replies: 18
Views: 6708


Attachment:
mics2.gif
mics2.gif [ 224.85 KB | Viewed 5697 times ]

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Fri Mar 16, 2012 5:09 pm 

Replies: 18
Views: 6708


Building one more speaker...

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Wed Mar 14, 2012 10:10 pm 

Replies: 18
Views: 6708


Amplifier layout

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Mon Mar 12, 2012 1:58 pm 

Replies: 18
Views: 6708


Attachment:
mic_capsules_la.gif
mic_capsules_la.gif [ 350.93 KB | Viewed 5757 times ]

 Forum: Audio, radio, and electronics   Topic: Line array from microphone capsules...

Posted: Mon Mar 12, 2012 10:30 am 

Replies: 18
Views: 6708


Rear side: gluing capsules
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