Controls on a Pi

[Teleno]

According some of the reports on the Chinese version of Fisher's T2, the shaft already provides that facility.

The chinese are always ahead of the crowd. When the coil suddenly drops and you're left swingig a shaft, don't panic, the detector is autonomously switching into drowsing mode to defeat hot ground. Feel the nuances in air resistance. Return to normal mode simply requires a couple of jolts and a few turns of duct tape so you can fine tune the wobbling amplitude to your liking. Smart cookies the chinese!

[Polymer]

The latest model is called the "dancing dervish" ...

[dbanner]

Feric toes, looking at your avatar, I see you are forward thinking man.
Planning for your latter years with Walker/ METAL DETECTOR combo with big coil to cover more ground per step.
I too am planning on such a device, but mine will be out sourced to Chinese, to get that extra wobble.

[dbanner]

I?m wondering about the controls on a Pi and have some questions:
1) anyone use the pulse delay control? Why doesn?t it allow you to set less than the default design minimum? I mean wouldn?t that be more interesting than the later half of knob travel that really kills sensitivity?
2) would a push button to boost TX source voltage be worthwhile? Maybe a boost converter to a big cap or super-cap?
3) manual variance of sample 1 vs 2 mix. What would it do?
4) variable slew or adjustable lowpass filter in preamp area?
5) in the MPP threads there is mention of a low gain inverting input 1st op amp buying some response time. Will this apply to the surf designs as well?

On your point#2, there exist precisely such a feature on the Superscan TX circuit. I believe the schematic is somewhere here on forum. It can be incorporated into any standard pi design.
In your point#1, longer delays may seem useless, but undersea environment they are not.