1/35 Panzer IV with HL radio gear switch Transmitter mod

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modler
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1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by modler »

This Panzer IV moves at scale speed and that works well with the HL sound chip on the receiver board. I did a mod to the transmitter involving a spdt with center off and a 5k potentiometer. This allows me to dial down the speed and set a cruise in either F\R with the primary throttle still available to increase speed at any time, then when throttle is released, tank moves at the cruise setpoint until the switch is switched to the center off position.

I also added turret traverse on this model. You can see that in the video.

Here is a video of the tank in action on my indoor test track.
https://www.youtube.com/watch?v=7oN7HIzHTF8
Attachments
IMG_1207.jpg
IMG_1207.jpg (1.36 MiB) Viewed 135 times
IMG_1204.jpg
IMG_1204.jpg (1.7 MiB) Viewed 135 times
IMG_1205.jpg
IMG_1205.jpg (991.86 KiB) Viewed 135 times
IMG_1206.jpg
IMG_1206.jpg (2.64 MiB) Viewed 135 times
on\off switch
on\off switch
IMG_1198 (1).jpg (1.73 MiB) Viewed 135 times
IMG_1196 (2).jpg
IMG_1196 (2).jpg (1.42 MiB) Viewed 135 times
IMG_1201 (1).jpg
IMG_1201 (1).jpg (1.83 MiB) Viewed 135 times
IMG_1202.jpg
IMG_1202.jpg (1.78 MiB) Viewed 135 times
MonsieurTox
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by MonsieurTox »

Very nice slow speed !
My parts for 3D printing :
https://cults3d.com/@CaptainTox
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Stormbringer
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by Stormbringer »

it looked really good just going along on your test track :thumbup:
Cheers
Alan

Let slip the cats of war!!!!

Taigen Panther G
Taigen T34/85
Heng Long King Tiger
Heng Long Tiger 1
Heng Long Jagdpanther
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modler
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by modler »

MonsieurTox wrote: Sat Jan 31, 2026 10:34 am Very nice slow speed !
Thank you for your reply MonsieurTox :D I am experimenting in slow speed animation of military vehicles for some time now and this is my latest attempt at scale speed @ 1/35 scale. So not only am I a 1/35 scale tank commander, I am also a RC pilot and fly GWS J3 Cubs which are the slowest 40'' wig span planes available. This makes for a very scale looking Take offs and landings.

The motors used are 8 ohm which allows good low speed resolution. The stock motors are 1.3 ohm.
Attachments
Turret traverse chassis attachment to upper hull.
Turret traverse chassis attachment to upper hull.
IMG_1216.jpg (1.77 MiB) Viewed 85 times
This is a good model to motorize as it had the option from the factory.
This is a good model to motorize as it had the option from the factory.
IMG_1215.jpg (2.34 MiB) Viewed 87 times
Added this turret traverse recently. I is proprotional speed and looks scale as well.
Added this turret traverse recently. I is proprotional speed and looks scale as well.
IMG_1210.jpg (1.9 MiB) Viewed 96 times
Last edited by modler on Sat Jan 31, 2026 4:08 pm, edited 3 times in total.
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modler
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by modler »

Stormbringer wrote: Sat Jan 31, 2026 2:05 pm it looked really good just going along on your test track :thumbup:
Thank you Stormbringer for noticing my post :D My test track gets a lot of use during the winter months here in Northeast Ohio.

This Panzer IV has the same chassis as the motorized remote control version less the gearbox. These are the easiest ones to motorize.

This Panzer IV will ultimately be a IR battle tank. Just need to add a IR emitter diode and 3 pin IR detector and maybe a 4 hit display with flashing defeat. (4 LED's). I use 1/30 Heng long RC models with TK-30-RXV1 circuit boards (Sherman, Pershing) as donor Tanks for these conversions.

There are four circuit HL boards available. I get mine from ebay or amazon.
1. TK-30-RXV1 = 1s lipo. use V1 Transmitter.
3. TK-24-RXV1 = 2s lipo. use V1 Transmitter.
2. TK-30-RXV2 = !s lipo. use V2 Transmitter.
4. TK-24-RXV2 = 2s lipo. use V2 Transmitter.
Attachments
a new set of of donors.
a new set of of donors.
IMG_1217.jpg (1.57 MiB) Viewed 81 times
May replace this speaker soon as it is rattling and is worn out,
May replace this speaker soon as it is rattling and is worn out,
IMG_1214.jpg (1.67 MiB) Viewed 93 times
Gear box is from a Tamiya 1/35 M60 and is a good fit for this chassis. The axles are a bit longer and could be trimmed bit I have grown to like it as it is. I buy used M60 models to get this gear box as I like Panzer III and IV models.
Gear box is from a Tamiya 1/35 M60 and is a good fit for this chassis. The axles are a bit longer and could be trimmed bit I have grown to like it as it is. I buy used M60 models to get this gear box as I like Panzer III and IV models.
IMG_1213.jpg (1.76 MiB) Viewed 93 times
This version (V1) has the best sound chip IMO.
This version (V1) has the best sound chip IMO.
IMG_1212.jpg (1.8 MiB) Viewed 93 times
Heng Long TK30- V1 circuit board used here.
Heng Long TK30- V1 circuit board used here.
IMG_1211.jpg (1.81 MiB) Viewed 93 times
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modler
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Re: 1/35 Panzer IV with 360 turret rotation

Post by modler »

Ok I went all in on this turret upgrade. This is the 3rd 1/35 model that has been converted. I have a junkyard of older tanks that I use for parts.
Attachments
Salvage yard of parts in a box.
Salvage yard of parts in a box.
IMG_1221.jpg (1.42 MiB) Viewed 64 times
bottom side of turret platform
bottom side of turret platform
IMG_1220.jpg (2.1 MiB) Viewed 64 times
not sure of the exact scale of these Lazer Force RC IR battle tanks. They do make good parts for 1/35 models.
not sure of the exact scale of these Lazer Force RC IR battle tanks. They do make good parts for 1/35 models.
IMG_1219.jpg (1.49 MiB) Viewed 64 times
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Herr Dr. Professor
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by Herr Dr. Professor »

Woo Hoo! modeler is back with more electronic wizardry! You are always way over my head in electronics know-how, but I check all your videos and I envy that you can slow down an AFV.
MonsieurTox
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by MonsieurTox »

modler wrote: Sat Jan 31, 2026 3:38 pm
MonsieurTox wrote: Sat Jan 31, 2026 10:34 am Very nice slow speed !
Thank you for your reply MonsieurTox :D I am experimenting in slow speed animation of military vehicles for some time now and this is my latest attempt at scale speed @ 1/35 scale. So not only am I a 1/35 scale tank commander, I am also a RC pilot and fly GWS J3 Cubs which are the slowest 40'' wig span planes available. This makes for a very scale looking Take offs and landings.

The motors used are 8 ohm which allows good low speed resolution. The stock motors are 1.3 ohm.
I love RC planes but as I also love accuracy, I hate when planes are too fast... it really kills it for me. Unfortunatly, most planes have to go faster than they should in real life to stay in the air. I had a GWS F4U back in the past ! :)

Are you using the stock vinyl tracks ? I think I can spot at least one tank in the background with what looks to be metal tracks ?
My parts for 3D printing :
https://cults3d.com/@CaptainTox
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modler
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by modler »

MonsieurTox wrote: Sun Feb 01, 2026 9:59 am
modler wrote: Sat Jan 31, 2026 3:38 pm
MonsieurTox wrote: Sat Jan 31, 2026 10:34 am Very nice slow speed !
Thank you for your reply MonsieurTox :D I am experimenting in slow speed animation of military vehicles for some time now and this is my latest attempt at scale speed @ 1/35 scale. So not only am I a 1/35 scale tank commander, I am also a RC pilot and fly GWS J3 Cubs which are the slowest 40'' wig span planes available. This makes for a very scale looking Take offs and landings.

The motors used are 8 ohm which allows good low speed resolution. The stock motors are 1.3 ohm.
I love RC planes but as I also love accuracy, I hate when planes are too fast... it really kills it for me. Unfortunatly, most planes have to go faster than they should in real life to stay in the air. I had a GWS F4U back in the past ! :)

Are you using the stock vinyl tracks ? I think I can spot at least one tank in the background with what looks to be metal tracks ?


Good morning MonsieurTox :D I see we have much in common in the hobby world, I also had a GWS F4U Corsair some time back and it was a excellent flying plane and was very scale looking with respect to take off landing as configured. I built it very light and that made a big difference. I still have an operational GWS Zero and Mustang on the flight line.

Yes, the model you mention has Fruialmodel metal tracks. It is a 1/35 Tamiya (1975) Chieftain Mk.5 motorized remote control version. It is also a scale runner with a modified Taigen Transmitter. I bought the Chieftain from a chap in Britain a few years ago via ebay. It was new in an unopened box. I will do a thread on that one soon.
Attachments
Experiments in Transmitter modification of speed set control.
Experiments in Transmitter modification of speed set control.
IMG_1230.jpg (2.37 MiB) Viewed 12 times
Here are a few of my GWS RC planes. I have actually used RC plane electronics in RC tanks because I have so much of it not being used anymore.
Here are a few of my GWS RC planes. I have actually used RC plane electronics in RC tanks because I have so much of it not being used anymore.
IMG_1229.jpg (2.88 MiB) Viewed 14 times
IMG_1228.jpg
IMG_1228.jpg (2.38 MiB) Viewed 14 times
IMG_1227.jpg
IMG_1227.jpg (2.35 MiB) Viewed 14 times
Taigen Transmitter modification for this model. I will soo be doing a simplified modification using a new Taigen Transmitter.
Taigen Transmitter modification for this model. I will soo be doing a simplified modification using a new Taigen Transmitter.
IMG_1223.jpg (1.36 MiB) Viewed 14 times
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Stormbringer
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Re: 1/35 Panzer IV with HL radio gear switch Transmitter mod

Post by Stormbringer »

looking forward seeing this take shape :thumbup:
Cheers
Alan

Let slip the cats of war!!!!

Taigen Panther G
Taigen T34/85
Heng Long King Tiger
Heng Long Tiger 1
Heng Long Jagdpanther
Coolbank Crusader III
Tongde Centurion Mk 5
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