Hi all! Here's a few pics of my recently completed projects. Enjoy! Bottom Up: Balanced Gilmore Dynamic(primary), PPA #1, PPA #2 w/power supply(left), Meta42(left) & Gilmore Dynamic #2(right). Gilmore Dynamic #2. PPA#2 w/power supply. ... almost forgot some pr0n can be found...

I've been working on a simple regulated power supply based off of the positive portion of the Welborne Lab's PS1. Well, it also looks just like the regulated power supply schematic in the LT1086 doc's, but that's besides the point. Below is my current artwork for a single rail supply...

I recall ppl saying in a thread that the AD843 will latch to one of the power supply rails in the PPA under certain conditions such as having the bass boost on when powering up and/or using a current limiting power supply. So I guess my question is, would it be safe to use the AD843's in a PPA...

The diagram above is a pic of a pcb style transformer. What I want is for the primaries to be parallel and the secondaries in series. Are the red and green connections correct in the above diagram? I would then use the '0' pins as the AC output? TIA

I downloaded the evaluation copy of Eagle PCB a few days ago and I think I am getting the hang of it. I've created a few pcb designs and I don't see where the size limit comes in to play. I can place vias and traces anywhere I want. Is this restriction only for placing library components and...

I'm in a little dilema. My wallet is urging me to buy something really really expensive ($600-800). But I'm torn between what I should splurge on. I always wanted to get a nice Digital Camera, but now that I have gotten myself in to this god awful hobby, I'm also thinking on upgrading my cdp...

Here are a few pics of the populated pcb: Well....here it is, an assembled prototype of the "Mint-Tin" KGCA. Unfortunately, I don't have an adaquate ps to test out the amp and it's driving me nuts .

With the limited amount of desk space I have and this endless hobby of DIY amplifiers, I had the idea of combining my next project (Antness Gilmore) and my Meta42 in to a single chassis. My initial thoughts are to split the input(s) into both amps and have the Gilmore power supply power both...

Here she is . Parts List Power: Buffers: Elantec EL2002 (Tangent) C1: 0.22 ìF 50V (digikey P3224) C2,C3: 470 ìF/25v Elna Cerafines (JMT) C4: Wima MKS-2 6.8µF/50V (Tangent) Virtual Ground: Texas Instruments TLE2426CLP (digikey 296-1994) LED: KingBright T1 3/4 X-Brite blue...

...found out the problem...okay to delete

Would using DIP pins to connect the inputs and outputs degrade the sound quality of an amp? I thought it would be convenient to socketize everything but if it'll degrade sound quality I'll pass on the idea. Thanks in advance.

Anybody have a preferred tip style when it comes to soldering on pcb? I'm using a Weller WP25 and it looks like it has a large screwdriver tip which I think is not ideal for this type of delicate work.

I just recieved my Alps in the mail today and found that the pot's case is isolated from the signal pins. If I'm going to use a metal case for my Meta42 project, do I still need to ground pot's case to PG? This amp will be strictly for home use and I'm planning on using an Elpac Wall Wart to...

I was browsing through Seenheisers website and they offer a 5 year (instead of 2) warentee if you purchase a set of headphones through an authorized dealer (USA). Does anyone know if Sound Emporium (eBay) is an authorized dealer in the US?

Just built my first CMOY and amazingly it works . Typically how long does a single 9v battery last on a standard Cmoy?

What I'm trying to do is to make an adapter that will let me use my cans with my tv (doesnt' have a headphone jack). I don't have a preamp, headphone amp, or a amp that I could hook it up to either . So instead of buying a DSP 360 or any other sort of amp, I think making something would be a...

I've checked the back and the front panels of my television and there is no jack for headphones. Is there a type of adapter that will let me use the variable audio out jacks or do I have to make my own? Also, just an idea could I somehow splice some speaker wire in to the right and left speaker...