Potato Head Electronics
Guitar ยท Tube Amps ยท Data Centre ยท Enterprise Networks

Free tools, calculators and resources built by someone who has spent two decades engineering enterprise infrastructure by day โ€” and chasing guitar tone by night. Both worlds. One place.

๐ŸŽธ Tube Amp Bias ๐Ÿ” Amp Troubleshooter ๐ŸŽ›๏ธ Tone Stack ๐Ÿข PUE Calculator ๐ŸŒ Network Troubleshooter ๐Ÿ“ Subnet Calculator
๐ŸŽธ Guitar Tools ๐Ÿ–ฅ๏ธ DC & Network Tools โ–ถ YouTube Channel
Guitar & Electronics
Guitar Amp & Pedal Tools

Practical, free tools for guitar amp builders, tube amp enthusiasts and pedal makers. No login, no fluff โ€” just useful electronics knowledge for guitarists at every level.

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Tube Amp Bias Calculator
Calculate quiescent plate current, dissipation percentage, cathode resistor values and estimated output power. EL34, 6L6GC, EL84, KT88, 6V6 and more. Download a full PDF bias report.
โœ“ Free โ€” Live Now
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Amp Troubleshooter
Step-by-step fault finder for common amp problems. No sound, hum, distortion, crackling, blown fuses โ€” plain English questions and clear fixes. No electronics knowledge needed.
โœ“ Free โ€” Live Now
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Tone Stack Calculator
Visualise Fender, Marshall and Vox tone stack frequency responses in real time. Move the knobs and watch the frequency curve change. See exactly what your treble, mid and bass controls are doing.
โœ“ Free โ€” Live Now
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Speaker Impedance Calculator
Calculate total load impedance for series, parallel and mixed speaker configurations. Quick-load presets for common cab setups. Never mismatch your amp again.
โœ“ Free โ€” Live Now
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Amp & Speaker Matcher
Tell us your amp output taps and we show you every safe, marginal and dangerous speaker impedance. The question everyone asks โ€” answered clearly. Includes common cab configuration guide.
โœ“ Free โ€” Live Now
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Pedal Component Calculator
Calculate resistor and capacitor values for clipping stages, tone controls and op-amp gain stages. Essential for anyone building or modding guitar pedals.
Coming Soon
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Tube Substitution Guide
Interactive reference for compatible tube replacements. Drop-in vs pin-compatible substitutions across common output and preamp tubes, clearly explained.
Coming Soon
Data Centre & Enterprise Networks
Infrastructure & Network Tools

Free calculators, planning tools and reference guides for data centre engineers, network architects and infrastructure programme managers. Built from real-world enterprise experience.

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PUE Calculator
Calculate Power Usage Effectiveness and DCiE for your data centre. Benchmark against hyperscaler and enterprise standards, identify overhead losses, and export a PDF efficiency report.
โœ“ Free โ€” Live Now
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Network Troubleshooter
Layer-by-layer fault isolation for enterprise network issues. No connectivity, high latency, packet loss, routing problems โ€” step-by-step guided diagnosis from L1 to L7.
Coming Soon
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Subnet Calculator
CIDR notation, network address, broadcast, usable host range, subnet mask, IP class and subnet split. Enter any IPv4 address and prefix โ€” get the full picture instantly.
โœ“ Free โ€” Live Now
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Bandwidth Utilisation Calculator
Calculate link utilisation, throughput headroom and recommended upgrade thresholds. Supports Ethernet, MPLS and WAN circuit planning scenarios.
Coming Soon
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Spine-Leaf Planner
Plan spine-leaf data centre fabric topology. Enter rack count, server density and uplink ratios to get recommended switch counts, oversubscription ratios and port requirements.
Coming Soon
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DC CapEx / TCO Calculator
Total cost of ownership modelling for data centre builds and migrations. Compare on-premise vs colocation vs cloud scenarios with CapEx, OpEx and depreciation breakdowns.
Coming Soon
YouTube
Watch on YouTube
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Potato Head Electronics on YouTube

Guitar amp builds, tube amp repairs, pedal teardowns and electronics tutorials. From biasing your first amp to understanding output transformer design โ€” practical knowledge for guitarists who want to go deeper.

Tube Amps Amp Builds Pedal Electronics Bias & Setup DIY Guitar Amp Repair
โ–ถ Subscribe on YouTube
About

About Potato Head Electronics

Two worlds. One person. Built from genuine experience in both.

Potato Head Electronics is run by Arya Sridhar โ€” an infrastructure programme manager and self-taught guitar electronics enthusiast based in Bangalore, with nearly two decades of experience delivering complex technology programmes across the UK, India and internationally.

By profession, Arya has spent 19+ years in infrastructure programme and project management โ€” owning the delivery of large-scale data centre builds, POP site deployments, hybrid cloud migrations, enterprise network rollouts and company infrastructure separations. With deep exposure to environments spanning MPLS, BGP, OSPF and SD-WAN, he has also led site reliability engineering and database operations teams across global organisations. He holds certifications including PMP, PRINCE2, Microsoft Azure Solutions Architect, VMware VCP and ITIL.

Away from infrastructure delivery, Arya is a guitarist who became obsessed with the electronics inside the gear. Entirely self-taught โ€” through years of reading schematics, repairing amps, building pedals from scratch and learning everything through trial, error and curiosity โ€” he built Potato Head Electronics as the resource hub he wished had existed when he started. The YouTube channel and these tools are the result of that journey: practical, honest knowledge shared freely with no gatekeeping.

The name? A potato wearing headphones and holding a guitar. Memorable, a little ridiculous, and completely on brand. Sometimes the best ideas come from not taking yourself too seriously.

Data Centre Builds POP Deployments Hybrid Cloud Migrations Infrastructure PMO Programme Delivery Infra Separations SRE / DB Ops Azure / VMware PMP / PRINCE2 / ITIL Tube Amp Repair Amp Biasing Pedal Builds Guitar Electronics Self-Taught

๐Ÿ–ฅ๏ธ Infrastructure & Programme Delivery

Nearly two decades owning the delivery of data centre builds, POP deployments, cloud migrations, network rollouts and infrastructure separations across global organisations. Deep exposure to complex, multi-vendor infrastructure environments. The DC and network tools on this site come directly from that real-world delivery experience.

๐ŸŽธ Guitar & Amp Electronics

Entirely self-taught in guitar amp and pedal electronics. Started by fixing a broken amp, ended up deep in schematics, point-to-point wiring and bias measurements. The guitar tools on this site are built for players who want to understand what is actually happening inside their gear โ€” no prior electronics knowledge required.

Why Free?

Good information on both guitar electronics and infrastructure engineering is either scattered, paywalled or buried in technical jargon. These tools exist because practical, accessible knowledge should be free. Every tool here is built to be genuinely useful โ€” not a lead magnet or a teaser for a paid course.

What Is Coming

Network troubleshooter, subnet calculator, bandwidth utilisation tool, spine-leaf topology planner and DC TCO calculator on the infrastructure side. Tone stack visualiser, speaker impedance checker and pedal component calculator on the guitar side. New tools added regularly โ€” subscribe on YouTube to stay updated.

โ˜• Buy Me a Coffee

All tools on this site are completely free โ€” no login, no paywall, no ads. If a tool saved you time, helped you nail your amp tone, or made a network design easier, a coffee goes a long way towards keeping the tools running and new ones coming.

Bias Calculator Amp Troubleshooter Tone Stack PUE Calculator Subnet Calculator
โ˜• Buy Me a Coffee
No account needed ยท Any amount ยท One time