Hi,
I took the opportunity of a vacation day to install all the electronics and run some tests, it took the whole day. The model has the following features;
- Clark TK-60 control board
- Mato 5.0 Gearbox
- Turret rotation, main gun elevation, gun recoil, flash and sound
- Coax MG flash and sound
- Movable commander cupola with secondary machine gun flash and sound
- Head light and tail lights
Electronic installation underway on the deck outside, under an umbrella on another beautiful hot day. Everything is thoroughly tested before running wires and soldering them in place.

- M551 Sheridan Airborne light tank - Vietnam - build
View of the interior electronics. Nothing fancy other than the TK60. I am out of HL speakers so I reused something I had in stock from China, unknown brand. If I exclude the TK60 that I reuse on multiple builds, the figures and the accessories, I got an RC Sheridan for a total cost under $500, Tamiya static kit included. I purchased the Static kit from Axels Modellbau for about $300, tax free. Their worldwide shipping of $40 for whatever you buy is unbeatable. Then the gearbox I got from MatoMart on special for about $70 at their annual Black Friday specials, with free shipping. The TK-60 was paid years ago and can be easily switched from one vehicle to another when everything is pre-wired inside. Whenever I want to use a specific model, its a 5 minute job to connect the wires. So, no real need for each vehicle to have its own control board like vendors are selling. Lately, I even reuse the same receiver and battery because all my tanks are pretty much configured for the same options, saving a lot of time, issues and money. I tend to use the TK-60 for tanks, a TK-40 for wheeled vehicles. I gave up on the TK20 series, they somehow don't last very long. Out of the blue, they just die on me. I threw 3 in the garbage in past 4 years. Then the rest of the electronics are fixed but cheap stuff like a HL rotation unit, a few servos, LED kits, wires, speaker. Even the recoil units I can make myself now if I want to with brass tubes. Oh, I never liked smokers so I do not use them, I have about 20 of them piling up in a box, removed from HL build over the years. So, there is a way to do RC tanks and save on redundant electronics that can be reused. If I had paid for the Tamiya Sheridan control board, I would certainly want to reuse it in other vehicles. Overall, it allows me to do more modelling for the buck.
My vision of the future for guys like me with multiple RC vehicles is a unique and very good RC electronic pack, enclosed, removable and protected, and that can be switched to any vehicles within a 5 minute plug and play config task with the pre-wired static components. By pushing the concept further, even the tank gearbox could be made to be plug and play, connecting to standard shafts attached to sprockets.

- M551 Sheridan Airborne light tank - Vietnam - build
Here is a short demo of the converted Mato Gearbox test with TK60 control board and tracks in operation. All is good. It did a tour of my wife's gardens in the backyard and it works really well.
https://youtu.be/MWyZz3WkBbk

- M551 Sheridan Airborne light tank - Vietnam - build
Here is a short demo of the weapons testing. Everything needs a bit of grease to run more smoothly but all the electronics and movements work well.
https://youtu.be/dTnZ6JuflHo

- M551 Sheridan Airborne light tank - Vietnam - build
Next step is the paint job for the tank, figures and accessories. It's a big task ahead with the 7 figures I created for this build.
Regards, Louis