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Diesel Engine Sound Simulator MK2

£22.46
(£26.95 incl VAT)
Price in points: 4492 points
3803-230
Currently Unavailable
Discontinued Product

As part of our review into the product ranges we stock, this engine sound unit is no longer available from Technobots.  We have been the retail outlet for the excellent engine sound module designs of Alan Bond of Forge Electronics for many years and have proudly supplied over 1,000 of these units to modellers around the world. The good news is that Alan is going to continue production of the Combo sound unit so please visit the Forge-Electronics website for pricing and availablility.

Our rather popular and well respected range of single voice and combo engine sound units have had a makeover! They still have the same great sounds but are even more user friendly.

NEW FEATURES

The MK2 Engine Sound Simulator is a revised and re-packaged version of the original unit, in a smaller footprint, lower profile Acrylic case which we laser cut in-house. The new design now allows all wiring connections and adjustments to be made without the need to first remove the case.

The set-up link in the MK1 version (to adjust the number of cylinders) is now replaced by a pushbutton which can be used at any time, rather than just at switch-on as was the case with the link. Provision has also been made for the user to (optionally) install a remote pushbutton in some convenient location in the model such that adjustments can be made in the field without having to open up the model and, as was the case with the MK1 version, having to open up the unit as well.

The original red LED that indicated the neutral condition has been replaced by a bi-colour red/green LED (now serving to indicate both the neutral and the run conditions, thus always showing that the unit is powered). In addition, the LED pulses in sympathy with the engine speed when the latter is running.

OVERVIEW

The sound unit picks up its speed demand from the r/c throttle signal of the model and produces an engine sound that varies smoothly and proportionally with the throttle setting demand in both forward and reverse. With the throttle closed, the engine has an idling time-out period followed by a ‘run-down’ (stopping) sound. Opening the throttle again causes the engine to re-start following a short ‘cranking’ sound. The start-up and run-down sounds plus the idling period are inappropriate for the steam option and are therefore omitted.

The unit is designed to be used with any radio digital proportional PPM radio control systems, including PCM, that utilises the industry standard 1-2mSec servo signal. The unit is easily installed by removing the Electronic Speed Controller (ESC) lead from your receiver and plugging in the ‘THR’ lead from the sound unit in its place. The ESC lead then plugs into the sound unit’s ‘ESC’ port. Be sure to connect up the unit in this manner rather than using a ‘Y’ lead from the receiver to the sound unit and ESC, as the unit outputs a neutral (stop) signal to the ESC whilst the cylinder set-up routine is being executed. For this reason the throttle and ESC ports are NOT interchangeable.

The unit's electronics takes its power from the receiver, but the loudspeaker derives its power from either the model's main propulsion battery or a separate battery pack. Connections for the speaker power and the loudspeaker itself are made using screw terminal blocks.

Whilst a synthesized engine sound can never compete with recordings of the real thing, it is felt that this unit captures the 'spirit' of various engine sounds.

 

SPECIFICATIONS

Speed demand sensing method

Receiver throttle channel  (unit has pass-through to ESC)

Neutral (idling) signal condition

Fixed at the industry standard of 1.5mSec

Neutral / run indication

Bi-colour LED - red for neutral, otherwise green, pulses at engine rate if latter is running.

Receiver voltage (which powers the unit's electronics)

4.8V min to 6V max   (this is usually supplied by a BEC which is often incorporated in the ESC) DO NOT USE A “6V” LEAD ACID BATTERY – a fresh fully  charged one of these can output as much as 6.6V

Speaker impedance

8 ohm minimum (Technobots part no. 2400-015 recommended)

Speaker supply voltage

From zero to 12V  (governs the volume of the unit)

Engine types

Diesel part number 3803-230

Petrol part number 3803-231

Steam part number 3803-232

Number of cylinders

1 (Steam model only), 2, 3, 4, 5  or 6       

Engine start / stop

Automatic, determined by throttle demand and idling period

Idling period

Approximately 20 seconds (steam version stops immediately when neutral selected)

Dimensions 92 long x 34 wide by 17mm high

 

CONTENTS

You receive the engine sound unit, a 150mm long lead to connect the sound unit to the receiver (your exisiting ESC throttle lead will plug into the sound unit) and a printed set of instructions. You will also need a speaker of the appropriate size and power for your model although we do recommend 2400-015 for the larger model. You may also need such things as wire, battery box, switch, fuse etc.. all depending on your needs and all are available to purchase here at Technobots if you do not already have them to hand.

Our engine sound units have sold worldwide including: Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Japan, Netherlands, New Zealand, Norway, Romania, Russia, Singapore, Slovakia, Spain, Sweden, Switzerland, Turkey, USA

User Manual

Manufacturer's Details

Manufacturer's SKU :
3803-230
Manufacturer:
Technobots

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Hi, I bought the Technobots MK2 Diesel Engine Sound Unit recently and tested it successfully. Very happy with it. While building my enclosure for it, I briefly connected what I thought was an 8 ohm speaker but after peeling back its foam sticker, found it to be 4 ohm. Now, the unit makes no sound output to any speaker, although the LED still behaves correctly, flickering with the sound pulses as initially observed when working. Question: what component is most likely to have failed on this unit after accidentally connecting a 4 ohm speaker to my brand-new sound unit? I'm adept at soldering and can repair this unit if I know what needs replacing - I'm used to working with much smaller, SMD components on my electronics workbench! Any and all help would be gratefully received! Thank you.

Asked by Craig | 20/02/2017, 05:41 | 4 answer(s)

My tug has an Action Electronics mixer and they advise that the receiver has its own battery, and that the centre wire in the connector from the ESC be taped off by removing the centre socket in the plug, which I have done. To use the sound module, if I use the ESC connector, with all 3 connectors in the socket used, can I then use a 2 wire lead from the sound module to the receiver so that the existing power for the reciever can continue to be used?

Asked by Chris Mancrief | 03/06/2016, 11:28 | 1 answer(s)

Hi there, I'm interested in the Diesel Engine Sound Simulator MK2 and have two questions: does it have a volume control (in the youtube video it was quite loud!) and 2ndly, does it have an input for a horn sound on a separate channel from my RC receiver? Many thanks, Eric

Asked by Eric MB | 19/05/2016, 12:58 | 3 answer(s)

Hi I have rewired the model boat over the weekend new wiring/fuses etc and the problem still exists. I will pack it up and return it for you to look at on Monday Many Thanks Terry

Asked by Terry | 02/08/2015, 10:10 | 0 answer(s)

Hi I spoke to you about 2 weeks ago regarding a diesel sound unit that had been damaged I presume with the post as I just opened the package, it was the casing lug that was broken. It was decided that as I wasnt going to fit the unit at that time I would let you know if the unit worked ok when I did fit it. I have fitted it today and I am only getting a tick sound in a few second intervals as described with the no signal condition, when I take the unit off and connect everything as normal the motor and steering works ok. Any suggestions as to the problem or as the unit been damaged when posted as mentioned previously. Many Thanks Hi again, Re previous message the led is flashing to show power is getting through but there is only the odd tick. Many Thanks

Asked by Terry Maher | 31/07/2015, 19:08 | 1 answer(s)

Can your units be used with Spektrum DX6i 2.4 tx

Asked by Alan Barker | 30/07/2015, 09:47 | 1 answer(s)

looking into buying this item for my Tamiya truck just wondering will thisitem work as it says the input is 6v but the Tamiya truck is7.2v

Asked by ben | 06/01/2015, 13:04 | 3 answer(s)

bought this unit at the warwick show but can not get throttle to work the led flashes red then green instructions say that there is no signal how do i correct this problem

Asked by mike lane | 10/11/2014, 12:54 | 3 answer(s)

How to a wire this device to a "pot" configuration to use in my Toylander? There is nothing that covers this in the instructions that come with the unit or on your download page? Many thanks Steve

Asked by Steve Morris | 09/06/2014, 18:23 | 1 answer(s)
3803-231
£22.46 (£26.95 incl VAT)
3803-231
As part of our review into the product ranges we stock, this engine sound unit is no longer available from Technobots.  We have been the retail outlet...
Currently Unavailable
Discontinued Product
Price in points: 4492 points

3803-232
£22.46 (£26.95 incl VAT)
3803-232
As part of our review into the product ranges we stock, this engine sound unit is no longer available from Technobots.  We have been the retail outlet...
Currently Unavailable
Discontinued Product
Price in points: 4492 points

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3803-233
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As part of our review into the product ranges we stock, this engine sound unit is no longer available from Technobots.  We have been the...
Currently Unavailable
Discontinued Product
Price in points: 6158 points

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