Recent content by darwin999

You could always include bias resistor(s) in the switched transistor sub-network. The switched resistors could be all or only part of the total bias resistance, but are enough that both transistors are optimally biased.

Ouch, surgery... I wish him well, and a full and speedy recovery.

I see that Deadend FX's website says "Temporarily closed until further notice". Anybody know what's up? I don't want to pry, but ... I'm wondering if it's a financial issue (e.g., tariffs hurting them,etc.) or of a more personal reason (e.g., just needing a break or vacation). I have built at...

My storage solution consists of wood bins made from cut up scrap lumber and plywood, sorted by component type and value. For storing passive components, I use whatever small bags I have on hand - including a lot of reused baggies. For storing semiconductors, I use conductive baggies I bought for...

I think it's here: https://forum.pedalpcb.com/threads/ocd-adhd-toans.17007/post-200309

When I don't want a small nut like this to come undone, I put a drop of paint on it. Having some Scottish genes, I use fingernail polish - more specifically, a color that was on sale... Very easy to dispense, and close up for the next use.

As a NASA guy, I'm sure you know that the term 'heavy water' has additional meaning outside of music. So to keep with the various nuclear sub-themes, perhaps one of the pots could be labeled along the lines of 'Fusion' or 'Moderator'? Happy holidays!

I would not pay for someone to email me the code + license #, as there's too high a likelihood that they're reselling it multiple times, which the company would legitimately get pissed enough to take action. But buying the physical disc + cover/box + printed license # for a modest amount is a...

Yes, I've bought some as well. They're fine, and even very useful when you have to parallel two resistors to make a resistance value you don't have. I will note that very few of our circuits in normal operation generate enough current to get these resistors even close to 1/4 watt. So while...

Good question. I don't know the answer when it comes to Eagle, as I don't know them or their software. And I definitely don't know how aggressively they manage their licenses. But I have in the past bought software discs + old licenses for scientific software from other people, and it worked...

Have you looked into buying a license from somebody else who no longer uses the software?

Earthquaker Barrows, it's a fuzz

1. Physical size (or wattage rating) has no impact on intrinsic Johnson (thermodynamic) noise, provided the resistor is not heating excessively. However, size is one of several things that can impact the extrinsic noise, so-called excess noise - which typically has a "1/f - like" frequency...

2 off-the-cuff quick comments: Can you include pics of the underside of the PCB, so all the solder connections can be inspected? Just looking at the ground lug solder job on the right-hand audio jack in the photo above raises soldering concerns in my mind - that solder didn't wet the connector...

Cool patent, it's from Varian Associates for use w/ a klystron... That woke up some old neurons that haven't been touched in ~40 yrs...