RC Tank Warfare community hobby forum

Has anyone come across an rx-18 board outputting a lower voltage than expected on the smoke unit terminal? I have put a voltmeter across the terminals of the RX-18 and I am only getting 2.3volts

Apart from this the tank operates perfectly.

Thanks

Mike

After much careful thought and gnashing of teeth I have decided that I have 'cooked' my board at least partially, has anyone run a smoke unit directly off the battery terminals? (with an inline switch and suitable diodes so as not to fry the whole thing) If this isnt possible I guess its either a new RX-18 or forget the smoke altogether.

Mike

Mike,Their is a smoker design that I will post on this forum next week that will address the smoker problems in detail.Including a replacement element that does not burn out to a complete replacement unit that is a direct plug and go unit.This design has been tested and is completely reliable.As far as your voltage issue it should be a constant 7.2volts from RX18 to smoker,the plug in two wire connection on both types of smokers is 7.2volts.This voltage remains constant to the element and pump motor on the non-proportional smoker,and on the proportional smoker is constant to the element only.We will also be releasing a replacement element for both H/L smoker designs that will improve smoke out put and not burn up,or require a drying out if overfilled. Cheers Blake

Thanks for the reply Blake, I await your smoking masterclass with anticipation

After looking into my problem further it seems there is a transistor on the board that has a constant 7 volts on 2 pins and when the tank is started up it de-energises one pin and allows the 7 volts to run through to the middle pin so hopefully I should just be able to replace that transistor and I should be fine again

My only problem is that when the tranistor gave up the ghost it messed up the part of the casing that has the model number on! I was wondering if anyone with an rx-18 lying around could maybe see the model number on the transistor? ( I had to use a magnifying glass) I can make out JGY but the lettering above that is too messed up.


The transistor looks like this and is located right next to where the smoke unit plugs in

Thanks for any help any of you can give me.

I think this is the one.

Thank you so much afv, you are a saint.

Mike