So do you need to make any modifications to the cuircuits or add any phase splitters/phase inverters?  Or can you just hook 'em up to the speaker as is?

Rock'n'Roll,
--Andy

If I wanted to bridge some LM3886's, would I just build them like regular circuits and then hook them up to the speaker as shown in the wikipedia article (the output of one circuit to the + of the speaker, the output of the other circuit to the - of the speaker) or do I have to change the biasing at all?

Rock'n'Roll,
--Andy

Thanks!

Rock'n'Roll,
--Andy

I kind of grasp what you just said, but not all of it.  I don't exactly understand what bridged circuits are.  Can you please try to explain them to me?  Maybe bridging two op-amps would be better than trying to fiddle with all that push-pull nastiness.

Rock'n'Roll,
--Andy

Is it possible to arrange op-amps in a push-pull configuration?  Obviously there'd have to be a phase splitter but apart from that, how would this be done?  I understand about how tubes work in push-pull, but I've never seen op-amps like that.  I imagine it wouldn't be too different, but I'm just curious.

I think the op amps would have to be biased differently.  70% idle current, not 100%, right?  That would put it into class AB instead of class A, which means it could be configured in push-pull.

Am I looking at this the right way?

Rock'n'Roll,
--Andy

Not a bad idea el mo.  I was actually thinking about something along those lines where I could just rehouse the peavey in a smaller case with no speaker and feed it into a reactive load and then EQ it so it sounds like it's coming out of a real speaker and then feed it into the PA and then a cabinet.  Also, if I could house the reactive dummy load, speaker sim EQ, and power amp all together with little to no knobs, then I could use it with low powered tube amps (am I allowed to say that on this forum?)!

Rock'n'Roll
--Andy

Quote from: DreamSeller on May 28, 2006, 11:18:58 PM
Cool, just tell me when and where to send the funds

Once again, ditto.

Actually wait, I know where, just tell me when!

Rock'n'Roll,
--Andy

I'll just wait until you have them to ship, then.

Rock'n'Roll,
--Andy

Are the AC connect terminals something that could be bought for cheap at a radio shack?

Rock'n'Roll,
--Andy

Quote from: RDV on May 28, 2006, 01:23:26 PM
Just let me know when to shoot you the funds. Are you still waiting on some parts?

Ditto.

Rock'n'Roll,
--Andy

YES!  I GET IT NOW!

Thanks to everyone who helped explain this to me.

So the "ov" on the layout I posted is essentially a "ground" then.

Rock'n'Roll,
--Andy

I'd prefer to get the entire kit as a whole, if that's at all possible.

I'll PM you my paypal info after you get those last few components.

Rock'n'Roll,
--Andy

I've got dibs on the next LM3886 after Javacody!

Rock'n'Roll,
--Andy

Ok.  Let me try this again.

Vcc is the same thing as V+
Vee is the same thing as V-

So I ground Vee (Pin 4), apply 9 volts to Vcc (Pin 8), and apply 4.5 volts to non-inverting inputs (Pins 5 and 3).  Is THAT right?

I attached the layout (which, now that I look at it, this whole thing makes a little more sense to me.  So how on earth is the 2nd TL072 biased???

Thanks for putting up with my noobie-ness.

Rock'n'Roll,
--Andy

I think I was confusing the inputs with the power pins.  So if I apply the same voltage to both Vcc+ and Vcc-, then I apply half of that voltage to VB.

Is that right?

Rock'n'Roll,
--Andy

(p.s. I plan on using two TL072s for this since I already have a layout that utilizes them.)