Colloidal Silver 2000

A simple device with a fixed output of 500 microamps, no timer or automatic anything. The device also incorporated one of Bob Becks devices.

Nothing flash here apart from the two green LEDs that flashed while in the "Beck" mode. The brightness of the red led was relative to the silver electrode current.

If the current was less than 500uA the LED brightness changed, it remained unchanged when the target current of 500uA was reached.

The lower knob controlled the current in the “Bob Beck” mode.

These days a blue LED should replace the red LED, when the device was built it was the only LED bright enough at <=500uA. The plug pack power supply no longer complies with current regulations; it should have insulation over part of the pins that go into the wall socket. A new LED and a 30 minute timer would make the device acceptable.

BTW I once built a microprocessor menu driven device that could emulate Bob Beck, Hilda Cark, Rife and others; due to legal concerns it was recycled.

Just for fun I plugged the device in for the first time in 5 years and placed a 1k resistor across the output, the voltage across the resistor was measured at .504V (Fluke DMM)

I=E/R

Therefore I= 504uA (designed for 500uA)

< 1% calibration error in 16 years.

This says a lot for the constant current chip used in the design.

A 3.5mm jack plug was inserted into the "Bob Beck" output and the wires were shorted together, the control was turned up and down, the green LED’s toggled back and forth and their brightness varied with the control adjustment, no oscilloscope testing was carried out, it is assumed the device is working as designed.

It would be nice if all products lasted 16 years, I expect this device will run for many more years.

Mmmmm grandson just walked in with a chocolate milkshake for me :-)