DreamPro Junior — Quarterly Kit Themes

The four-box arc for the proposed quarterly STEM subscription. Each box is a kid-safe slice of one of the three meta-patterns that show up across the 768-patent open-energy catalog (see vendor/energy-patent-research/). Box 4 closes the loop by combining all three.

Status: drafts. These are the spec sheets that block the sponsor outreach (Adafruit / SparkFun / Digi-Key in-kind underwriting) and feed the unit-economics model. BOM costs are target per-unit retail at 100-unit run, before in-kind sponsor underwriting.

Design rules every box must obey

1. Total parts cost target: ≤ $25 retail at 100-unit run. Subscription price target is $35-45 with shipping; in-kind sponsor parts subsidy gets us to a sustainable margin.
2. No mains voltage. Every active circuit runs on a 9V battery or USB 5V. Nothing the kid touches exceeds 12V.
3. No soldering required. Solderless breadboard + jumper wires for everything. Soldering iron is an optional upgrade in the parent-resource section, never a required step.
4. Reading level for the instruction card: 4th grade. A 9-year-old should be able to read and execute the experiment without an adult present, though parent confirmation is required to submit a replication.
5. Single-page instruction card (front + back, full color, laminated). Detailed walkthrough lives in the box's video on the kid-safe QR landing.
6. Every box promotes one new dreams template to safety_level='classroom_safe' so classroom teachers can run the same experiment without buying the kit.
7. Every box's QR-driven replication contributes to the meta-pattern's 50-confirmation goal (see migration 047). Anonymised attribution: Family Box #N — <bucketed region>.
8. Each box references the prior box. Continuity is the single most important retention lever for a quarterly cadence — if Box 2 doesn't reuse the coil from Box 1, churn spikes.

Box 1 — Coil Geometry

"Why does shape matter?"

Learning objective

A coil isn't just a spool of wire. The shape of the wire — how tightly it's wound, on what core, with what spacing — determines a property called inductance that decides what frequencies the coil "likes." Discover that two coils with the same number of turns can behave completely differently.

What the kid does

1. Wind 30 turns of magnet wire around the small ferrite toroid included in the box.
2. Wind 30 turns of magnet wire around a paper tube (no core).
3. Connect each coil in turn to a small NanoVNA (network analyzer) with the included clips.
4. Sweep 1 MHz – 30 MHz and record where each coil's response curve peaks.
5. Discover: same turns, different shapes → wildly different peaks.

Patent cluster lit up

Coil Geometry · 248 patents. This is the most commonly varied design parameter in the 768-patent catalog. Almost every patent specifies a particular coil topology (Tesla bifilar, caduceus, Smith coil, pancake, etc.) and explicitly claims the geometry as part of the invention.

Promoted template

coil-geometry-toroid-vs-air-core — already exists in the catalog at safety_level='adult_only'. Promote to classroom_safe after the kit ships, since the kid-safe instruction card validates that the procedure is K-12 appropriate.

Parts BOM (target ~$22 retail / 100-unit run)

Note on the NanoVNA: It's the cost driver and the single biggest decision in the entire program. See the NanoVNA inclusion-model decision section below.

Sponsor pitch hook

Adafruit + SparkFun both already sell beginner electronics kits. Pitching: "your logo on the box of 100 actual K-12 households running real RF measurement experiments."

Box 2 — Resonance

"Why does timing matter?"

Learning objective

Every coil from Box 1 has a frequency it "rings at" — its self-resonance. Pair it with a capacitor and you can tune that ringing. This is the same effect that makes a tuning fork sing, a guitar string vibrate, or a microwave oven heat your food at exactly 2.45 GHz. Resonance is how energy concentrates.

What the kid does

1. Re-attach the toroid coil from Box 1 to the NanoVNA.
2. Add the small ceramic capacitors from Box 2 (3 values: 10 nF, 100 nF, 1 µF) one at a time, in parallel.
3. Watch the resonance peak on the NanoVNA screen move as the capacitor value changes.
4. Find the capacitor that puts the resonance closest to 1 MHz (AM radio band).
5. Connect a small piezo buzzer through the LC tank and tap it — hear the ring.

Patent cluster lit up

Resonance · 312 patents. The single most common pattern in the catalog. Half of all open-energy patents reference some form of resonance condition (LC tank, mechanical, cavity, gyromagnetic). Box 2 makes the kid build the simplest possible version.

Promoted template

lc-tank-self-resonance-discovery — new template. Created during kit prep. Maps to dimensions Resonance + Coil Geometry (since the kid is reusing Box 1's coil).

Parts BOM (target ~$8 incremental / 100-unit run)

Reuses: NanoVNA + breadboard + Box 1 toroid coil.

Sponsor pitch hook

Mouser already sponsors educational labs at the university level — pitching this as a K-12 funnel into their existing program is a single-call sell.

Box 3 — Pulsed DC

"What happens when you don't let the current settle?"

Learning objective

Up till now, the kid has worked with steady (DC) signals or naturally-ringing (AC) signals. Box 3 introduces pulsed DC: a square-wave signal generated by a 555 timer chip that turns on and off thousands of times per second. When you drive Box 1's coil with sharp pulses tuned to the resonance you found in Box 2, something interesting happens — the energy in the coil builds up cycle-over-cycle.

What the kid does

1. Build a 555 timer circuit on the breadboard (4 components: 555, 2 resistors, 1 capacitor).
2. Verify the output frequency with the parent's smartphone running a free oscilloscope app (Phyphox or Soundcorset).
3. Drive a small N-channel MOSFET that switches the Box 1 coil on and off at the 555's rate.
4. Tune the 555's frequency until it hits the resonance the kid found in Box 2.
5. Watch the LED on the coil's output flash brighter as the resonance condition is hit.

Patent cluster lit up

Pulsed DC · 197 patents. The most underexplored cluster in the catalog. Many patents claim that pulsing a resonant LC circuit at the right rate is what makes the difference between a normal radio circuit and an energy device. Whether or not those claims hold up, the kid has now built the simplest demonstrator and can independently observe what the patents describe.

Promoted template

555-pulsed-resonant-coil — new template. Maps to all three meta-pattern dimensions; this is the first box where the kid has lit up multiple cells of the meta-pattern grid simultaneously.

Parts BOM (target ~$10 incremental / 100-unit run)

Reuses: breadboard, jumper wires, Box 1 coil, Box 2 capacitors.

Sponsor pitch hook

Digi-Key sponsors FIRST Robotics — the audience overlap is exact. Pitch: "the post-FIRST hobby track for kids who already love electronics."

Box 4 — Synthesis

"Putting it all together."

Learning objective

The kid now combines all three patterns into a single working demonstrator: pulsed DC into a resonant LC tank built on a coil with deliberately chosen geometry. This is the configuration that 26% of the 768 patents describe operating together — and the kid has now built it themselves, from parts, on a breadboard, in their kitchen.

The point isn't that this circuit produces "free energy" (it doesn't — the patent claims of overunity remain unproven). The point is that the kid has demonstrated understanding of the meta-pattern. They can now read any of the 768 patents and spot which of the three patterns it's leaning on.

What the kid does

1. Build the full circuit: 555 timer → MOSFET → LC tank (Box 1 toroid + Box 2 capacitor).
2. Connect a second pickup coil (included) wound around the same toroid as Box 1's drive coil — a primitive air-gap transformer.
3. Measure the voltage across the pickup coil with the parent's phone oscilloscope app.
4. Sweep the 555 frequency and find the band where pickup voltage is maximal — this is where the meta-pattern is "lit."
5. Submit replication via QR: parent confirms, anonymised result joins the open registry.
6. Bonus card: read one of three short, kid-friendly patent abstracts (curated from the catalog) and identify which patterns it uses.

Patent cluster lit up

All three patterns operating together · 199 patents (26%). The meta-pattern itself.

Promoted template

synthesis-pulsed-resonant-pickup — the headline template for the whole DreamPro Junior program. Featured on the kit landing page. Replications from this box are the ones we feature on the world map.

Parts BOM (target ~$5 incremental / 100-unit run)

Reuses: everything from Boxes 1-3.

Sponsor pitch hook

This is the cap-stone. Sponsors who underwrote the full year see their logo on the certificate of replication and on the featured template page on the world map — high-visibility placement that justifies the higher tier.

Total program economics (target, pre-sponsor)

Gross margin per subscriber-year, pre-fulfillment: $115 (~72%). Subtract ~$8/box fulfillment + ~$3/box packaging + ~3% Stripe fees → net margin ~$50/year/subscriber. Sponsor in-kind underwriting on the NanoVNA alone could boost net to ~$80/year/subscriber.

These numbers feed the "Run unit-economics model for pilot quarter" task. They're starting estimates — refine after fulfillment quotes come back.

Continuity narrative (for the parent-facing email sequence)

• Box 1 ships. Email subject: "You've just built your first scientific instrument."
• Box 2 ships (week 12). Email subject: "Remember the coil from Box 1? It's about to start singing."
• Box 3 ships (week 24). Email subject: "Two patterns down. Time to make them work together."
• Box 4 ships (week 36). Email subject: "You're about to do real open science."
• Year 2 announcement (week 48). Email subject: "Year 2 — the four advanced patterns."

(Year 2 themes: Plasma Discharge, Permanent Magnets, Special Materials, Self-Oscillation. Drafts deferred until Year 1 pilot data is in.)

NanoVNA inclusion-model decision

The single biggest pricing/positioning decision in the entire program. Resolve this before the Adafruit / SparkFun quote requests go out — the BOM number you quote them depends on it. Recommendation at the end of the section.

Why this matters more than any other parts decision

The NanoVNA-H is a $55 retail / ~$28 wholesale RF network analyzer. Every other part in Box 1 totals under $9. The NanoVNA dominates the BOM 3:1, and unlike the resistors and capacitors in later boxes it's reusable across Boxes 1, 2, and (smartphone-app-permitting) Box 3. That asymmetry — one big durable instrument plus three boxes of cheap consumables around it — is structurally the same as a subscription razor + blades model, and it deserves the same care.

The decision shapes:

• Funnel friction. A $40 first box vs. a $90 first box is the difference between an impulse buy and a deliberation.
• Sponsor pitch. Adafruit / SparkFun underwriting $4 of capacitors is not interesting. Underwriting a $28 instrument is a real partnership.
• Resale optics. A box with a real instrument inside it photographs differently than a box of breadboard parts. Matters more than I'd like to admit for the unboxing-video / influencer track.
• Refund / return liability. If a parent cancels mid-quarter, did they walk away with a $55 instrument? That's an attractive churn pattern that destroys economics.

Option A — Bundle in Box 1, full retail price

Box 1 ships with the NanoVNA included. Box 1 retail subscription price: $80–90 introductory (vs. baseline $40 boxes 2-4).

Bias: highest-conversion to a real scientific outcome (kid actually measures something), but lowest-conversion at the top of the funnel.

Option B — Standalone "Tools Kit" sold separately

The NanoVNA + reusable instrumentation (BNC clips, breadboard, jumper wires) is a one-time $60 Tools Kit sold alongside the subscription. Required for Box 1; sold separately.

Bias: cleanest economics, sharpest segmentation between "casually curious" and "actually committed." Costs you the impulse-buy parent who'd never check out twice.

Option C — Co-branded "DreamPro Junior Edition" NanoVNA at wholesale

Partner with the NanoVNA-Saver community or a hardware vendor for a co-branded unit at $25–28 wholesale (vs. $55 retail). Bundle in Box 1 at $50–55, marked-up to $30 incremental over the bare-parts cost.

Bias: best long-term brand outcome, worst short-term execution risk. Probably the right choice if the program survives Year 1; almost certainly the wrong choice for Year 1 itself.

Side-by-side cheat sheet

Recommendation

Ship Year 1 on Option B (separate Tools Kit). Plan to migrate to Option C in Year 2 once the program has proven demand and the brand can support a co-branded instrument.

Reasoning:

1. Year 1's job is validation, not optimisation. The waitlist gate (>200 signups in 30 days) only proves demand for the concept; the first 100 paid kits prove demand for the price. Keeping the subscription price low (Box 1 at $40) lets us isolate the price signal cleanly. Bundling adds confound.
2. Tools Kit upsell is well-understood mechanic. Stripe Checkout's add-on feature handles it natively. A/B test the auto-bundle vs. opt-in to see what the actual drop-off looks like. If drop-off is <25%, stick with B; if >40%, consider migrating to A in Year 2 instead of C.
3. Co-branded instruments are an outcome of Year 1 success, not an input to it. NanoVNA-Saver will be more receptive to a partnership pitch when we can say "we have 500 subscribers and 1,200 instrument users" than when we're pitching "we hope to have subscribers."
4. Refund optics matter most in the riskiest year. Year 1 will see the highest cancellation rate (we have no idea what it'll be — model assumes 25-40%). Option B's lowest refund risk dominates that uncertainty.

Decision-gate triggers for switching options

• If the Year 1 waitlist gate passes >500 signups in 30 days: revisit Option C immediately — that level of demand justifies the partnership lead time.
• If Tools Kit attach rate < 60% in the first 30 days of paid kits: migrate to Option A (bundle) so every Box 1 ships with the instrument, and price the Box 1 introductory at $80.
• If a sponsor (Adafruit / SparkFun / Digi-Key) commits to underwriting the NanoVNA before Box 1 ships: skip B entirely, go to Option A with sponsor underwriting, and price Box 1 introductory at $50 (sponsor-subsidised).
• If Year 1 ends with > 250 active subscribers: green-light Option C for Year 2 regardless of other signals.

What to put in front of sponsors right now

The Adafruit / SparkFun / Digi-Key outreach (now unblocked) should pitch the underwriting scenario, not a confirmed plan:

"Year 1 ships in two configurations: a $40 starter box of consumables and a separate $60 Tools Kit containing a NanoVNA. We're seeking a sponsor to underwrite up to 100 NanoVNA units for the pilot quarter so the Tools Kit can ship at $30 instead of $60, lowering the total Year 1 commitment from $220 to $190 per family. Your logo would appear on the Tools Kit packaging and on the Box 1 + Box 2 instruction cards (the two boxes that use the instrument). Estimated reach: 100 K-12 households running real RF network-analyzer measurements at home."

That pitch is honest about Option B being the current plan, gives the sponsor a concrete dollar value for their underwriting, and leaves the door open to migrate to Option A if they fund it.

Single-purchase Box 1 vs subscription-only decision

Resolves Open Question #2. Like the NanoVNA decision section above, this is a Year-1 commitment with a Year-2 reassessment trigger. Recommendation at the end.

Why this matters

The Year 1 plan as currently scoped is subscription-only: a $40/quarter charge that auto-renews unless cancelled. That's the cleanest revenue model and the easiest Stripe wiring (one product, one price tier, one cancel flow). It also asks for a recurring commitment from a parent who has never seen the box — the highest-friction ask in the funnel.

A standalone Box 1 at $40-50 (no subscription) lets a sceptical parent buy once, see the kit, and then decide whether to subscribe to Boxes 2-4. Lower friction, but every standalone purchase is one fewer subscription started, and standalone purchasers have to be re-converted at the end of Box 1 — a separate marketing problem entirely.

The actual question

Will offering a standalone option expand the funnel by enough to cover the lost subscription velocity, or will it cannibalise subscriptions one-for-one?

The answer depends on a parameter the unit-economics model can't predict and only the pilot can: the conversion rate from "bought standalone Box 1" → "subscribed for Boxes 2-4" (call it R). At base subscription churn the equivalent metric is the Box 1 → Box 2 retention rate (~80% at base). If standalone-conversion R ≥ 80% the standalone is a strict win; if R ≤ 50% it's a strict loss; in between it's a tradeoff against funnel-expansion magnitude.

Three options

Option A — Subscription-only (current plan)

Year 1 ships with no standalone. Every paid customer is a subscriber from the start.

Bias: simple, slower, and the most certain economics.

Option B — Standalone Box 1 only (no subscription option)

Subscription model is dropped entirely. Each box sold individually for $50-55. Customer comes back manually for each subsequent box.

Bias: lowest-risk to ship, fundamentally caps the program's revenue ceiling. Not recommended.

Option C — Subscription + standalone Box 1 upsell

Default checkout path is the subscription. A "Try just Box 1 first — $50" link appears below the subscribe CTA as an opt-in for sceptical parents. Standalone purchasers receive a follow-up email after Box 1 ships (~14 days post-ship) with a one-click "Subscribe to Boxes 2-4 from $40/box" CTA.

Bias: highest-conversion at the top of funnel, modestly worse per-customer economics. The mainstream play if R lands at 60% or higher.

What the model says

Take a 100-paid-customer pilot under Option A vs. Option C with conservative assumptions:

• Option C lift: assume the standalone option converts a +30% expansion at the top of funnel (parents who wouldn't have subscribed otherwise but are willing to risk $50 once)
• Cannibalisation rate: assume 20% of would-be subscribers pick standalone instead
• Standalone-to-subscription conversion R: model under three scenarios

Starting from an Option A baseline of 100 subscribers and Year-1 net contribution per starter of $65 (from the unit economics model):

(Standalone Year-1 contribution: $50 retail - $22.40 COGS - $1.75 Stripe = ~$26 per unit.)

Critical takeaway: R has to fall to ~25% before Option C underperforms Option A. The realistic floor for "got the box, liked it, willing to try the next one" is much higher than 25% — most subscription-box analogs (KiwiCo, Universal Yums, etc.) report 50-65% conversion from "single-month trial → subscription."

Recommendation

Ship Year 1 as Option C with the standalone CTA visually de-emphasised. Reassess at the 30-day decision gate against measured R.

Reasoning:

1. The model favours Option C across every realistic scenario. Even the pessimistic R = 40% case beats Option A by 8%. Only at R ≤ 25% does Option C lose, which is below what every analog subscription-box business reports.
2. Option C de-risks the waitlist→paid conversion. The unit-economics model already flagged that the waitlist gate of 200 signups likely yields ~100 paid subscribers under Option A. Option C plausibly raises that to 130+ for the same waitlist size — closing the gap to the 139-subscriber break-even.
3. The cannibalisation risk is bounded by UI design, not by the underlying economics. Make the "Subscribe — $40/box" CTA the primary button (purple, full-width, above the fold). Put the "Try just Box 1 first — $50" as a smaller text link below ("Not ready to commit? Buy Box 1 standalone →"). Confident parents pick the primary; sceptics find the secondary. Option A behaviour is the default.
4. Stripe wiring is incremental, not duplicative. Subscription product already needs to exist for Year 1 anyway. Adding a separate one-time-purchase product for Box 1 standalone is a one-line addition to the same Stripe Checkout. The standalone-to-subscription upgrade email is a 30-line Resend template — not a new system.
5. The upgrade email is the actual leverage. The day Box 1 arrives at a standalone purchaser's house is the highest-conversion moment in the entire funnel — they've literally just experienced the product. A well-timed email at day 14 ("Loving Box 1? Box 2 ships in 4 weeks — subscribe and never miss one") is where R actually gets earned. Budget designer time for the email now, not after standalone goes live.

What this changes about the prior plan

1. Stripe wiring (P3) needs two products, not one. Update the "Kit SKU schema + Stripe subscription wiring" task description: subscription product dpj-subscription-quarterly ($40/box recurring) + one-time product dpj-box-1-standalone ($50 one-time). Webhook handlers must distinguish so subscription-only counters don't get inflated.
2. Add a follow-up task: "Standalone-to-subscription upgrade email." Resend template + cron that fires 14 days after each standalone Box 1 ships. Sequence: ship → wait 14 days → email with one-click subscribe CTA → if no action in 7 days, second email at day 21 → silent thereafter. Track conversion via UTM-tagged Stripe Checkout link.
3. Waitlist landing CTA stays single-button for now. Don't change /dreampro/kits until the kit-subscription tasks unblock — the current page is a waitlist (collect email), not a checkout (collect payment). The standalone vs subscription decision only manifests at the eventual Stripe Checkout page.
4. Decision-gate trigger gets a new metric. When the kit-subscription build unblocks (after 200 waitlist signups), measure R directly: every 100 sales tracked separately as "started subscription" vs "bought standalone." If R < 30% after 50 standalone customers complete the 14-day email cycle, kill the standalone option in Year 2 (Option A retroactively).

Decision-gate triggers for switching options

• If Year 1 ends with R < 30% measured over 50+ standalone customers: drop standalone in Year 2, migrate to pure Option A. Anyone who bought standalone in Year 1 keeps the right to subscribe at the original $40/box; new customers see only the subscription.
• If standalone purchases exceed 60% of Box-1 sales: cannibalisation is dominant — make the standalone CTA harder to find (move it below a "Show more options" toggle on the Stripe Checkout). Don't kill it outright; bury it.
• If standalone purchases stay under 25% of Box-1 sales AND R > 60%: standalone is doing exactly what it's supposed to. Hold.

Open questions before BOM lock

1. NanoVNA inclusion model — resolved above. Year 1 = Option B (separate Tools Kit). Year 2 reassessed against the decision-gate triggers.
2. Single-purchase Box 1 vs subscription-only — resolved above. Year 1 = Option C (subscription + standalone upsell, standalone visually de-emphasised). Year 2 reassessed against measured R.
3. International shipping cutoff — only ship to countries with > N waitlist signups in the first 30 days, or accept the higher per-unit shipping cost as a marketing investment?
4. Classroom-safe template promotion — should the templates auto-promote when the box ships, or wait for at least one teacher confirmation that the kid-safe instruction card actually works in a classroom?

These questions go to the next planning round, not blockers for the sponsor outreach.