We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Wooden gramophone puzzle with horn speaker, 424 pieces

ROKR

ROKR 3D Wooden Gramophone Puzzle 424 pcs 10h Assembly Age 14+

SKU CH-K611-ERV8S

A 424-piece wooden kit builds a working gramophone with a turnable horn and hand-crank power in about 10 hours

  • Suggested age14
  • Age groupAdult

Style Hand Rotating

  • 1:1 scale replica of a 19th-century gramophone
  • 180° turnable horn speaker for authentic aesthetics
  • Hand-crank generator powers playback without batteries
  • Plays 7" and 10" vinyl records with adjustable volume
  • 424 precision-cut wooden pieces assemble in 10 hours

Mechanical gramophone model

The ROKR wooden kit builds a 1:1 replica of a 19th-century gramophone with a rotating disc and distinctive horn speaker. It suits hobbyists aged 14 and older who enjoy hands-on mechanical assembly and vintage audio aesthetics. The set contains 424 pieces and takes roughly 10 hours to complete.

Compatibility check

Verify that you have a flat workspace and enough time for a multi-session build. The model plays most 7" and 10" vinyl records, so confirm your records match those sizes. No glue or batteries are needed, but a USB cable can provide extra power for louder volume.

Build quality and daily use

Precision-cut wooden parts fit together without adhesive, and the 0.4 mm steel cantilever stylus reads grooves while protecting vinyl. The horn speaker rotates 180° for directional sound, and a hand-crank generator powers playback with a volume knob for adjustment. A USB port supplements the crank when extended listening is desired.

How it compares

Measured against everything we stock in STEM Kits & Building Blocks, at today’s prices. Recalculated every night.

Price $53.99
Pricier than about 75% of the 236 comparable items (median $28.99).

Specifications

More details
Suggested age14
Age groupAdult

Other versions of this model

1 more in the same range

Questions about this item

What comes in the box and what must I buy separately?

The box contains 424 pre-cut wooden pieces and a step-by-step illustrated manual. No glue or batteries are required for assembly. You will need to supply your own 7-inch or 10-inch vinyl records to play music.

Which version or capacity should I choose?

This kit is offered as a single 424-piece Classical Gramophone model rated for ages 14 and up. There are no alternative piece counts, sizes or power configurations to select from.

What does the 10-hour assembly time mean in practice?

The manufacturer estimates a typical build takes around 10 hours. The hand-crank generator powers the brushless DC motor and the piezoelectric stylus reads the record, while the 180-degree turnable horn and volume knob let you adjust playback.

More in STEM Kits & Building Blocks

Similar items