Turbocharged Rimatron 7MX

[Legaucho]

Turbocharged Rimatron 7MX

Hi Qiaozhi,

I came back from my professional displacement for some days. I acquired an inductancemeter which is very useful to determine the coils of the detector which will be to construct.
I decided to stop the tests of Rimatron, I will try to start one of detector which are nowadays under discussion on the forum. In fact I think that the time crossed to perfect Rimatron is not worth trouble of in its weak characteristics of detection compared with other detectors

I think that you should proved the different link around pins: 3, 13 and 9 of circuit LM13700.
At the next time and Best regards. Luc

[Qiaozhi]

I think that you should proved the different link around pins: 3, 13 and 9 of circuit LM13700.

Hi Luc,

I do not understand your reply above. The wiring for the LM13700N is correct. This arrangement allows the detector to operate with a single 9V PP3 battery, without the need for a circuit to generate a negative supply voltage. It's not ideal, but seems to work quite well. The original Rimatron circuit has poor depth capability when compared to the Bandido for example, but the turbocharged version has improved performance that is much closer.

The Rimatron was only back-engineered out of curiosity, and I never really expected anyone to build a clone. However, if you come across one on eBay, then it may be worth doing the modifications. My purpose for posting the back-engineered details was purely for learning purposes.

I guess you're saying you didn't get the copy to work.