Navigation

Search


Categories

On this page


Archive

Blogroll

RSS 2.0 | Atom 1.0 | CDF

Send mail to the author(s) E-mail

Total Posts: 88
This Year: 0
This Month: 0
This Week: 0
Comments: 9

SC-1 Mic Preamp NOW ON SALE!!!!

After many months of development, testing, troubleshooting, frustration, problems, and accomplishments... the SC-1 mic preamp kit, PSU-1848 power supply kit and power transformer kits are now available for sale!

Click here to ORDER

Photo of a finished SC-1 mic preamp kit!  (Note: XLR jacks and wires shown on picture not included in the kit.)

Features:
- Low-Noise, transformerless, High-Quality Mic Preamp
- All solid-state design, using chipsets from THAT Corp and Burr-Brown
- Soft-start, slow ramp-on +48V phantom power
- Crystal clear Red LED indicator for phantom power
- Electronically balanced input and output stages
- 12-position Grayhill gain selector switch
- Gain range from +6 to +72dB, in 6dB increments
- Input RFI protection
- Input clamping protection
- Output surge protection circuit
- Output RFI protection
... read more...

Download PDF file of Assembly Guide/Kit Instructions

Related products like the PSU-1848 Power Supply Kit, Power Transformer Kit, Power Control Kit are also available for sale. Click here.

 Saturday, November 24, 2007
Saturday, November 24, 2007 10:08:04 PM (Central Standard Time, UTC-06:00) ( )
While waiting for the IO-module PCB to arrive, I'm starting to design the PCB for my new PSU.

It's a DC-to-DC converter, that will allow powering of the SC-1, or for that matter, any project requiring +/-18 and +48VDC from a 12VDC or 12VAC source.

So my goal is to be able to power the SC-1 using wallwarts or batteries in the future.

The battery option will be useful for tapers and other field recordists.

Here's the preliminary PCB component layout.

The PCB measures 2" x 3.25" only.



Done... just need to do some component size checking, and then I'll send it out for prototype manufacturing.

To fit in a 1u rack, the heatsink must be 1" high.




I don't know if this thing will work, I have not breadboarded this... so I'm doing straight into a PCB. With switching PSU being sensitive to PCB layout, I'm not 100% sure if I did everything right.

I'll need to re-read the datasheets and look for PCB design guidelines and fix anything that needs fixing before sending this off.

Fixed size of capacitors.

New PCB size... 2" x 3.375"





All comments require the approval of the site owner before being displayed.
Name
E-mail
Home page

Comment (HTML not allowed)  

Enter the code shown (prevents robots):

< noscript>