BurntSemiconductor

notepad.exe - readme.txt

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Welcome to BurntSemiconductor! Join me as I explore electronics, retro computing, and hands-on DIY projects. Check out the YouTube channel for more cool content! If you want to reach out to me the best way is through youtube comments. I do read them and love to hear from you!

Video Player

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dtmf.exe

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Trunk signals

Coin signals

DTMF/Trunk duration (ms): Gap (ms): Coin speed (%):

Sequence

Input rules: plain characters 0-9 * # A B C D are DTMF. Use bracketed tokens for non-DTMF: [KP], [ST], [2600], [N] or [NICKEL], [DI] or [DIME], [Q] or [QUARTER]. Tokens can be mixed, eg: 1800[KP]5551212[ST][Q].

dtmfd.exe

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Trunk/Coin

Timing

Min ms Guard Frames

Log

Help

Controls

Min ms: tone must persist this long.
Guard: silence time before next digit.
Frames: consecutive frames required.
Trunk/Coin: enable legacy KP/ST/2600/coin; noisy on ambient mics.

Levels

morse.exe - encoder

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Input

Text to encode

Ctrl+Enter also plays

Visualizer

?

Controls

Tone Frequency (Hz) 600

Dot Length (ms) 120

Dash Length Multiplier (× dot) 3

Intra-symbol Space (× dot) 1

Letter Space (× dot) 3

Word Space (× dot) 7

explorer.exe - linkz

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calc.exe

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cfillcalc.exe

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Conductors

Nipple (60% fill)

Qty Type Size (AWG) Dia (in) Area (in²)

Conduit

Type Size Internal Dia (in) Internal Area (in²) Fill %

Fill % auto-uses NEC: 1 cond=53%, 2=31%, 3+=40%, nipple=60%.

Results

Conductors0

Total Area--

Allowed Area--

Usage--

bfillcalc.exe

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Conductors & Devices

Qty Wire Size (AWG) Dia (in) Area (in²) Type

Box

Box Volume (cu in) Ring/Extension (cu in)

Results

Items0

Total Volume--

Box Volume--

Usage--

ohm.exe

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Ohm's Law / DC Power

Voltage (V) Current (A) Resistance (Ω) Power (W)

AC Power

Voltage (Vrms) Current (Arms) Power Factor (0-1) Real Power (W)

Real (P)--

Apparent (S)--

Reactive (Q)--

PF--

arcblast.exe

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Inputs (IEEE 1584-2002 style)

System Voltage (V) Bolted Fault Current (kA) Arc Gap (mm) Working Distance (in) Clearing Time (s) Enclosure Target Incident Energy (cal/cm²)

Quick NFPA 70E helper using legacy IEEE 1584-2002 equations (enclosed vs open air). For study-grade numbers run a formal arc-flash study.

Results

Arcing Current--

Incident Energy @ WD--

Arc-Flash Boundary--

PPE Hint--

Boundary uses the target incident energy (default 1.2 cal/cm²). Calculations assume 208 V–15 kV, gaps 3–152 mm, clearing times 0.01–2 s, and are informational only. NOT TO BE USED FOR SAFETY OR PPE PLANNING. FOR FUN ONLY.

fault.exe

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Source Inputs

Transformer kVA Secondary Voltage (V LL) % Impedance (%Z) Override Upstream Fault (kA) Utility SSC (MVA, optional) Motor Factor (% of xfmr) Phases

Calculates available symmetrical fault current at the transformer secondary. Motor factor adds % of transformer contribution to mimic motor backfeed. Utility MVA adds upstream source stiffness in parallel. Override kA bypasses transformer math.

Downstream Run (to load panel)

Conductor Size Material Length (ft, one-way) R (Ω/1000 ft) override X (Ω/1000 ft) override

Uses positive-sequence conductor impedance scaled by one-way length. Add length for feeders from source to panel; ground path not modeled separately. Override R/X if you have exact data.

Results

Upstream Fault--

Panel Fault--

Panel Sym. MVA--

Total %Z--

Notes--

antennacalc.exe

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Mode

Resonant Lengths

Frequency (MHz) Velocity Factor (wire) Inverted-V Apex Angle (deg)

¼-wave--