Jump to content

kgst


kevin gilmore

Recommended Posts

It must nice to have a Birgir for that :D

 

I've used these relays, G6KU-2F-Y-DC4.5, controlled by the MAX4821EUP in another project.  Very simple circuit and works perfectly.  The relays are much smaller than the original ones.  Going to all SMD parts would help a bit as well.

Link to comment
Share on other sites

The nice thing with the maxim driver is that I can set all of the pins low/high with one set instruction. It is programmable via a 3 bit address. I'm using an expander to control the address and set/reset. I've designed it so I can control two drivers with one expander, so two expanders and 4 drivers per channel.

I've been setting one relay at a time, which is the same as I was doing with the original boards.

I think I can get each channel to about 4" x 1.5". I'd like to see them mount one to the other. If we offset the relays this should work fine. Total dimension for balanced would be about 4" x 1.5" x 1".

Edited by Kerry
Link to comment
Share on other sites

I finally got the HV caps and the PS up and running.

 

IMAG00068.jpg?psid=1

 

 

The voltages look good including bias and pre-reg voltages.

 

I mounted the transformer and board to a temporary wood cutout that I milled.  Fit looks good.

 

IMAG00071%201.jpg?psid=1

 

 

The wiring is nice and neat...

 

IMAG00073.jpg?psid=1

 

 

Here you can see the transformer in the steel case mounted to top plate (wood for now)...

 

IMAG00075.jpg?psid=1

 

 

So far so good :)

Edited by Kerry
  • Like 1
Link to comment
Share on other sites

I've done the test fit for the amp section as well.  Here's a better approximation of what it will look like. 

 

From underneath (Excuse the mess of wires.  I'll fix those up once I'm happy with the fit)...

 

IMAG00076.jpg?psid=1

 

 

Here's a shot from the top of the amp...

 

IMAG00082.jpg?psid=1

 

 

I've just been listening for the past hour.  Sounds great :D

 

EDIT:

 

PS. Happy New Year!

Edited by Kerry
  • Like 1
Link to comment
Share on other sites

I think it sounds better upside down :)

 

I see you did a lot of work on the board since last night.  I love it :D

 

I noticed the serial interface for the drivers.  That really simplifies the board.

 

This will fit perfectly in my build.

Link to comment
Share on other sites

3 hours total

 

6 shots of various vodka's

(new kickass Russian/French restaurant with 50 different vodka's)

http://dekarestaurant.com/

 

and after generating the netlist, its still correct.

 

scary

 

The nice thing is this way you can drive all 32 relays at the same exact time.

but unless you can calculate relay position, a lookup table is necessary

 

board file posted, needs checking

Edited by kevin gilmore
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

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