Leach superamp pcb file?

[halvardf]

Is this the PCB you are talking about?

 

[BeanZ]

Why yes. Yes it is... If there is any interest, contact me! I have the PCB file in ExpressPCB format and I have a populated board which I could sell....
BeanZ

 

[blessgin]

Super .pcb

Hey nice looking amp Halvardf!
I bit the bullet a CADed up the Super amp. Once I had a good look at it; it wasn't too different from the 4.5. Anyway the file is attached. I can also give you Autocad DXF if you like.
Cheers.

 

[BeanZ]

Actually that is a picture of my amp. What kind of power did you get out of yours?

BeanZ

 

[blessgin]

I've no idea BeanZ, I build the 4.5 as per the specs, blew up the output transistor because I forgot to fit the snubber network on the output terminal. Once I had it sorted, I didn't bother to check the power. Just drove it into a dummy load at near clipping overnight to check on it's survival. I run it straight from my CD via a pot into the amp and it makes my ears sore. I guess in truth it would depend on the output of the CD. The interest in the Super Amp is for a friend who wants to build one. I don't think that that sort of power is needed unless you wish to drive a sub bass speaker. If I measured the power output into my dummy load it would be into a 7 ohm load because I use toaster elements in parallel as a general high powered load (around 600W).
My Amp is built into a 1950's Marconi HF transmitter tuning capacator...plenty of aluminium fins!
Cheers

 

[halvardf]

Hey BeanZ.
I would realy like a copy of your PCB layout 🙂

HFosse

 

[BeanZ]

If you want the ExpressPCB file, I think that I can still send it to you if you email a request to me. ExpressPCB is a free circuit board layout program available for download at not cost at www.expresspcb.com

I would also like to tell everyone that I have a second copy of the above board populated for sale if anyone wants it. The circuit board includes an inadequate soft-start circuit, fan controllers, two channel 10LED VU meter, separate zobel network, a clipping indicator circuit, and a triac AC circuit which operates in the first and third quatrants for the primary of the main transformer......

Bottom line...email with your requests.

BeanZ

 

[halvardf]

My email is: hfosse@funserver.net

What is the price on the PCB board you'r talking about. If you already have made it, the I don't have to send it to production myself. If it's okay with you, I would realy like to use your layout on the PCB for my amp. Okay?

HFosse

 

[halvardf]

Is it possible for you (BeanZ) to send me the PCB file for you leach superamp, perhaps event attach it to a message here at the messageboard.

Hfosse

 

[BeanZ]

Thanks for all of you which have showed interest in the project. I am currently searching for the original complete and final ExpressPCB file to distribute to those who requested it. I do have readily available an ExpressPCB file of a single channel amplifier only. I can easily make this a dual channel and send to right away. I am going to need more time to find the final PCB file used on the project....I will post to this thread when I have located it.

BeanZ

 

[G]

Thank you very much Beanz!

G

 

[skaara]

I cant found schematics for 4.5 superamp on superamp page, can anyone tells me where they are?

 

[Bob2]

skaara

The 4.5 schematic is for the Leach Low Tim Amp not the Leach Superamp.

 

[BrianGT]

Indeed... the superamp is only in version 2.1a. Any reference to 4.5 refers to the normal leach amp. I am finally assembling my superamp and should have it together using the pob design on the superamp webpage:

http://users.ece.gatech.edu/~mleach/superamp/

schematic located at:
http://users.ece.gatech.edu/~mleach/superamp/circuit.pdf

I will eventually try pcbs for the superamp that have integrated to-247ac devices like my leach amp boards.

--
Brian

 

[skaara]

I was looking at the subject of the thread and mixed something.. 🙂