Hi everyone,
I did a short test using a new replication of the "Quantum" October 2002 Load Resistor, as per some revised specifications from Harvey and Rosie with a 32mm x 254mm coil on a 280mm piece of "Borosilicate" glass tubing and a calculated inductance of 8.64 uH @ 48 turns of 22AWG Ni Cr type A wire.
The results were somewhat expected with the Mosfet Drain spikes (Channel-2) smaller in amplitude but the battery spikes (Channel-4) remained the same, the Channel-1 mV readings were much larger than a normal running at the frequency that I'm usually operating at. The Load resistor temperature was between 110 and 140 degrees F a normal range, and the Mosfet was running at 200 to 260 degrees F much higher than normal.
I was also refining the gate pot type for publication and am going to wind another load resistor coil for a comparison between my original prototype resistor with the same center to center coil wire spacing but using the "HUGE" 76mm "Borosilicate" glass 6 inch long tubing shown in the set-up photograph.

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Rosemary Ainslie COP>17 Heater Circuit
"Quantum" October 2002
Replication Components -
1)
w/ Sil-Pad insulator between Mosfet and Heat Sink
2) Fairchild Semiconductor - NE555N Timer
3) Vishay Spectrol - SP534 Percision Potentiometer/ 10-turn 2-Watt
4) Exide Technologies Battery "Liquid Lead Acid" Model # GT-H - TRACTOR 12V 12Ah CCA 235
5) CSB Battery Company "Gel Lead Acid" #GP 1270 F2 / 12 Volt 7.0 Ah
6) Prototype "Quantum" Load Resister 10 ohm 32mm x 254mm
7) "Shunt" - Caddock High Performance Film Resistor "non-inductive" 30 watt type MP930-0.25-1%
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Channel 1 - Mosfet source shunt
Channel 2 - Mosfet drain
Channel 3 - 555 Timer pin #3
Channel 4 - 24 VDC "Liquid" Lead Acid Battery Bank
TEST #11 - Complete Original Image & Data .Zip File Set
40us

20us

2us

100ns

Channel-1

Channel-2

Channel-3

Channel-4

All Images and data by a Tektronix TDS 3054C from the Tektronix Corporation
Glen


, thanks for posting Glen. Also thanks for pointing some of that's out EgmQc, that is a bit clearer to me, i can say tho with confidence that we had a secret Ip logging software on the Panacea university site once, if you ask Patrick Kelly, we had visitors from the military to the world bank. So they certainly are interested in what we are doing.

But I digress...
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