Well at long last the sun is out and I have finished the rebuild. All of my 'mods' removed except one - 40M across AUTO switch. Now, I know why that makes it all work, what I don't see is how the original ever did ? My only guess is the the 470n is perhaps electro and thus a bit leaky ? Anyway, mine works. Threw out the multi turn bal pot for a single turn which I find much easier to use. First simple tests after GB and on coins on the ground ie not buried, shows 9" plus.
A few pics, pleased with batt box I cut into the top. Bought and old detector on Ebay for £5.00 to get the pole anda the speaker grill. Had problems with coil connector so ended up with 4 pole XLR. Total weight is just 1.2 Kg. Layout and parts matter! Use cheap caps to decouple. I used monolithic ceramic everywhere else.










A few pics, pleased with batt box I cut into the top. Bought and old detector on Ebay for £5.00 to get the pole anda the speaker grill. Had problems with coil connector so ended up with 4 pole XLR. Total weight is just 1.2 Kg. Layout and parts matter! Use cheap caps to decouple. I used monolithic ceramic everywhere else.
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