chiil

Thanks Steve!

I thought maybe the MJ coil and this coil were similar in dimensions... but if I'm reading the forum correctly. The MJ coil is 8x12 and the High-Q coil is 7.5x12. So I suspect any coil covers would be different. Or is it better just to make one?

Curious if Sun Ray or another 3rd party vendor made an inline probe for the TDI? Thanks in advance! Gabe

The Whites SPP is similar, if not, the same machine but missing the delay knob. I came across a post in this forum that described the PCB board being the same. If you search for "whites spp metal detector" on youtube - you'll come across some in-field reviews of the SPP version in Australia. Unless you're asking specifically about the Hi-Q coil itself?

Hello everyone! I'm new to the forum and have been an on-again, off-again DFX user for the last ten years (family, kids, work, life, yada yada yada). I picked up a used TDI SL special edition. Figured since we moved to Colorado back in 2014 - why not? I had always wanted one and this one came with a few coils and a Li-Ion converted pack. I wanted to ask - I went out to the backyard to give it a run through. Found a few nails scattered through the yard. However, I noticed I could not use any type of ground balance, as the machine would start to 'pulse' in my ear and sometimes increase in intensity like a feedback loop. If I completely turned off ground balance, it wasn't an issue. I came to find out that the closer I was to my service panel, it would increase. This would make sense since the power lines most likely pass underground through my backyard. My question is: are there any concerns with damaging the front-end receiver on the TDI SL? It was rather alarming when I flipped on ground balance. Thanks in advance! Gabe