Philips 4407 Counter Gear Set

Replacement gear set used in a tape counter in Philips 4407 / N4407 reel-to-reel recorder.

The gear was produced using a precise 3D printer.

It was tested for proper operation.




Gear is compatible with Philips 4407 / N4407 reel-to-reel recorders and other models—check the service manual.

Available in e-shop.

Philips AS9300, AZ8640 Idler Gear

Replacement Idler Gear for Philips cassette recorders AS9300, AZ8640, AS9410, AS9510, AS9555, AZ8594, AS450 and similar.

The gear was produced using a precise 3D printer and a slightly flexible material to ensure silent operation.

It was tested for proper operation.



The gear position in the schematic:



Gear is compatible with Philips cassette recorders AS9300, AZ8640, AS9410, AS9510, AS9555, AZ8594, AS450 and other models—check the service manual.

Available in e-shop.

Philips AS665C, FW732C, FW750C idler wheel 4822 522 10493

Replacement idler wheel (part number 4822 522 10493) for Philips CD players and midi systems. The gear is made using high-precision 3D printing. Nylon material ensures durability and long-term performance.

Position in the assembly:

Tested for correct operation.

The gear is compatible with Philips AS665C, FW372C, FW750C, FW372C/22, FW372C/22B, FW730C and also Grundig M17C, M27C.

Alternate names AS-665C, FW-372C, FW-750C, FW-372C/22, FW-372C/22B, M-17C, M-27C.
It might be compatible with other devices too – please consult the service manual

Available in e-shop.

Onkyo Minidisc MD-101A Gear 2646-571-11

Replacement gear marked 2646-571-11 for Onkyo Minidisc recorders MD-101A and FR-155. Cracked gear causes “Mecha Error”.

The replacement part was created using a high-precision 3D printer using durable Nylon material. The gear was tested for correct operation.

You can find the gear here in schematics:


Gear is compatible with Onkyo Minidisc Recorders FR-155 and MD-101A.
It can be compatible also with other devices – just check your service manual.

The gear is available in the e-shop.

X33635011

Loading Gear 4 For Sony Minidisc MDS-JA30ES / MDS-JA50ES

The gear is part of the Sony Minidisc MDS-JA30ES and MDS-JA50ES tray assembly. Sony part number is 4-987-293-01 Gear (4).

Replacement part was created using a semi-professional 3D printer using durable Nylon material. The gear was tested for correct operation.

You can find the gear here in schematics:


Gear is compatible with Sony Minidisc Recorders MDS-JA30ES and MDS-JA50ES. It can be compatible also with other devices – just check your service manual.

The gear is available in the e-shop.

X33635011

Midway “B” Loading Gear For Sony Minidisc MZ-1

The gear is part of the Sony Minidisc MZ-1 loading assembly. Sony part number is 4-955-496-01 Gear (Midway B).

Replacement part was created using a semi-professional 3D printer using durable Nylon material. The gear was tested for correct operation.

You can find the gear here in schematics:


Gear is compatible with Sony Portable Minidisc Recorder MZ-1 and other minidisc devices using mechanism type MT-MZ1-106 – just check your service manual.

Replaced gears:


The gear is available in the e-shop.

X33635011

ELTA CRC-1001 Gear

Replacement pinion for Elta CRC-1001 portable cassette player.

Replacement gear was created using a semi-professional 3D printer using durable Nylon material.

Tested for correct operation.

The gear is available in the e-shop

X33635011

Philips 70FC450 70FS365 70FC150 70CD555 Gear Set

Gear set for Philips 70FCxxx and 70FSxxx cassette recorders.

Philips 70FCxxx gear set

Replacement gears were created using a high-precision 3D printer. Gears were fully tested for correct operation. The material is slightly flexible and durable, resulting in silent operation and a long lifespan.


The gear set is compatible with Philips cassette recorders:
70FC450, 70FS365, 70FS364, 70CD555, 70FC145, 70FC150, 70FC152.
FC450, FS365, FS364, CD555, FC145, FC150, FC152.
However, it might work also with other devices – just check your service manual.

Available for purchase in the e-shop.

Philips CD 900 Series gear wheel

3D printed replacement gear wheel (part. no 4822 522 33192) for Philips 900 series CD players.



Tested for correct operation – see the video created by Stanislav V.



Gear is compatible with Philips CD players CD 910, CD 911, CD 920, CD 921, CD 930, CD 931, CD 940, CD 950, CD 951, CD 960. It migh be compatible also with other models – check your service manual.

Available in e-shop.

Tascam 112 / 122 / 488 Gear set (Gear A, B, C)

Replacement gear set for Tascam 112/122/488 tape recorders. The set consists of the following gears:
5801474101 Gear A
5801474200 Gear B
5801474300 Gear C
The part numbers might vary for different Tascam models.

Replacement gears were created using a semi-professional 3D printer using a combination of Nylon and TPU material, that guarantees durability and silent operation. The gears were fully tested.

Individual gears are available upon request.

The gear set is compatible with Tascam tape recorders 112MK2, 112RMK2, 122MK2, 122MK3, 488MK2.
It might be compatible with other models – just check your service manual.

Available in e-shop.