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For ltspice the ".step param" directive is very useful. Importing a potentiometer from Internet is also quite valuable.

Breadboarding is nice but I'll say LTSPICE is quicker for investigating behavior.

DOWNLOAD LTSPICE LTSPICE allows modelling of circuits and IMO is a great way to follow what ifs and have fun "playing" with electronics Some Books and Websites Small Signal Audio Design by Douglas Self is a great resource for familiarizing oneself with circuits. If you like tedium, Art of...

I socket opamps and ICs. I solder transistors that are not prone to swapping i.e BJTs but NOT FETs. I've soldered and desoldered beltons multiple times over without issue. They are fairly robust due to size and lead length.

Cool looking shields. Nice overall aesthetic. I assumed the choke would emit a magnetic field. I see how it filters the electrical path in supply. Further thoughts? How's the Hammond working for you?

Hi, reviving this thread. I started a 1590DD build about a week ago. Still drafting. I'm curious what the noise is like on these. I'm trying to squeeze 3-5W out of a 12AU7 and use 2 12AX7 in the preamp. I plan to use tube shields and have provisions rotating 1 XFMR if necessary. I'm also...

Any recommendations for SMD mosfets for analog signal switching? My understanding is that larger threshold voltages are preferred for more swing without risk of inadvertantly toggling states. Is this correct? Any thoughts appreciated.

Electrosmash has breakdowns of the big pedals: rat, tubes creamer, ds1, muff. Those are all good. I would not look into chorus, flange, delay or verb first, those are harder imo

IMO electronics is best understood as functional circuit blocks then transition to the component level. You should be looking at sallen key filters and non-inverting gain stages...then build out. You should see circuits as a signal chain, this fet is configured as a common source amplifier...

There are a couple but they are all complex and component heavy to my knowledge.

Was going to get chip yesterday, took month to leave Germany but DHL passed it to USPS who then incorrectly issued a return to sender. Guess who's not answering the phone...😡

Congrats on the expanded bench! I use BODE plots all the time. It's great for confirming designs and seeing tolerance (when it's bad). I also find it useful for measuring other pedals. You can do pre and post drive EQ as well by controlling the gain and amplitude in. I sweep my work through...

Small bear is out of stock as are a couple distributors. Musikding worked though. STOMPLFO and Digi-delay on the way!

The port acts like a speaker made of air that then resonates at X frequency. The port increases system volume above resonance but subtracts below resonance. Open back cabs follow the low end roll off of the driver albeit with rear wave cancellation. Closed back cabs move the speaker resonance...

Yeah lots of false marketing in this field. Speakers.

Cone throw is the main enemy of low end reproduction. Required excursion quadruples per octave down. The larger diameter drivers displace more air per excursion and so get more bass for their throw. They also have on average higher cone mass so lower resonant frequency. The larger diameter...

Smaller speakers tend to have extended highs and maintain treble off-axis compared to larger diameter speakers. Bigger speakers tend to be louder per Watt input than smaller ones. These are not hard rules. Speaker design is a game of compromises and speakers can be made to have lots of bass...

Built a pedal around Electric Druid's STOMPLFO only to check website and see that they are not shipping to the states due to tariffs. I don't know how long ago that decision was made but I know there was a recent ruling that the tariffs are illegal. Is it a safe bet to order from them now? Is...

To add a caveat though, the size of the bypass caps dictates how "ideal" of an AC GND the rails and midpoints are. I've seen some filters be off spec because the midpoint was not low enough of an AC resistance to actual GND.

There is no difference in circuit performance however from a layout perspective, ground will be tapped via a plane whereas vref would need a dedicated trace. Sometimes on 4 layer, one lay will be tied to vref but as far as I know, not common.