This is a very straight forward installation; 2 screws long one the front short one to the back hold the body in place. The Zimo MS500N sound chip and a Minnow4 15x8x4.5 speaker from https://www.youchoos.co.uk/ only have the speaker wires (purple) the remaining wires were removed. The Minnow4 slips in-between the gear tower and PCB riser, it is necessary to shorten the pins on the MS500 to 4 millimetres long pin 1 is to the right as you look down it is marked, and wrap the chip with 20 mm Kapton tape other than that it’s plug and play.
PixValley
About Me

- Pix Valley
- From Rugby, Warwickshire; Went to Marlborough Secondary School; Studied at Rugby College of Engineering Technology; Worked at HM Forces - British Army; Studied at Royal School of Military Engineering; Former Maintenance Technician at International Computers Limited; Former IT Support at GlaxoSmithKline Pharmaceuticals Ltd; Lives in Letchworth
Pages
Saturday, 15 March 2025
SECR P Class 0-6-0T 323 'Bluebell' sound fitting.
My Hatton’s now Accurascale ‘Bluebell’ is now fitted with a Zimo MS500N sound chip and a Minnow 4speaker from https://www.youchoos.co.uk/. Except for the speaker wires (purple) the remaining wires were removed.
Remove 4 screws from the chassis to release the body there 2 at the front 2 at the rear. The speaker fits in the Left hand side of the chassis after removing the small weight I stuck a sliver of 1 mm plastic card to insulate the speaker from the cast chassis.
It was necessary to remove approximately 3 millimetres from the cast chassis where the chip would fit this was to enable sufficient clearance I also deepened the slot where the interface board sits pin 1 is to the top of the board. I machined mine in a milling machine and deepened the slot with a hacksaw; the casting is quite robust holding it in a vice gently was not an issue so carefully cut it away with a hacksaw is a possibility.
Finally I lined newly milled area with 1
mm plastic card to insulate the chip from the chassis. It is necessary to shorten the pins on the MS500 to 4 millimetres long and
wrap the chip with 20 mm Kapton tape.
The Minnow4 15x8x4.5 is held in place on
the plastic card with double sided tape.
Sunday, 9 March 2025
Hornby Sentinel 0-6-0 sound fitting.
Hornby Sentinel 0-6-0 sound fitting.
Another straight forward conversion first remove the 4 body fixing screws, the body just pulls away mine was a little tight. I trimmed the orange and white wires again sealing the end with a short length of heat shrink tube.
This time I chose the Zimo MS500N sound chip and a Microcube 12x8x7 speaker this fits nicely behind the motor held with double sided tape. Wrapping the chip with 20mm wide Kapton tape. Carefully position the wrapped chip on top of the motor again secured using Kapton tape, once again no major surgery to the model.Saturday, 8 March 2025
Bachmann GWR Class 56xx sound fitting
This is a quite straight forward exercise first remove the NEM pockets to reveal the body fixing screws, the body just pulls away.
Wednesday, 18 December 2024
Dapol Class 121Slipping Drive
18/12/2024
This is the second time the drive shafts have failed! The knuckle on the end of the shaft just slips. Unfortunately there are no spare parts available at the time of writing. Fortunately I have the old set from the previous failure I cleaned the parts in isopropyl alcohol run a triangular needle file across the mating portion of the shaft and glued the knuckle with cyanoacrylate. That didn’t work Dapol will supply them on an exchange basis. So the loco and the defective drive shafts are going back after the holidays
Replacement drive
shafts have arrived back; I’m glad to see that the design has been changed. To my
mind this is a much better design.
Sunday, 15 December 2024
Restoration and rebuild of Western Hills station part 2
I Sprayed
the completed lights poles with Halfords rattle can Rover Damask red which is a
close proximity to LMS maroon, next is to fit all those fiddly little LEDs.
Meanwhile I've sprayed 18 GWR style platform benches from model railway scenes
with Halfords rattle can Rover Russet brown a close proximity to GWR chocolate.
Saturday, 14 December 2024
Restoration and rebuild of Western Hills station
14/12/2024
Assembly quite straight forward slide the square base up the tube leaving 15 millimetres protruding. Slide the collar on the top leaving around 2 millimetres protruding run liquid cement around the joints. The next task is to disassemble the cheap and cheerful Chinese lights. All we need to keep is the globe and the top cover. I cut the spigot off the top cover which allows them to come away from the pole.
For the light source I used miniature micro LED’s type 0402 pre-wired from eBay they are so very tiny.