INTEL-RES-004 // LOOSH INTERFERENCE TEST
FIELD BUILD NOTES // PORTABLE SIGNAL HYGIENE UNIT // KIDD/SCRAPS DESIGN MK-III
DOCUMENT TYPEFIELD DEVICE // BUILD DOCUMENTATION CLASSIFICATIONRESISTANCE EYES ONLY // TECHNICAL PRIMARY AUTHORS. KIDD // FREQUENCY DIVISION FABRICATIONSCRAPS M. // HARDWARE DATE FILED1987 // REVISED ONGOING CROSS-REFSCRAPS & SID ZINE // CEREAL HOLD FILE // ATTENUATION-TABLE
▸ ARCHIVE STATUS: OPEN|LOW-VOLTAGE BUILD ONLY
▸ 01 — PURPOSE + WHAT IT ACTUALLY DOES

The LOOSH Interference Device, or LID, is a portable field unit that performs two useful jobs: it creates local noise discipline around a receiver, and it gives the operator a visible warning when ambient carrier pressure rises.

It does not make you invisible. It does not block a citywide signal. It does not defeat Vril infrastructure by bravery, stickers, or shouting. The Mk-III makes a small area less clean for passive reading by combining ferrite-loop detuning, audio-band masking, and a simple field-strength indicator.

In ordinary terms: the unit makes the room harder to listen to and tells you when the room is being listened through.


▸ 02 — SAFE BUILD PRINCIPLE

The Mk-III uses only low-voltage parts. It runs from a 9V battery or four AA cells. It is not connected to mains power. It is not a radio transmitter. It is a noise hygiene box and detector wrapped in a portable radio shell.

Do not connect this build to wall current. Do not add an external transmission antenna. Do not increase output power because a graph made you feel heroic.
S. KIDD: If it draws enough power to get warm, you built the wrong thing. If it needs a license, you built the wrong thing. If Scraps says the sparks are probably decorative, unplug it.

▸ 03 — COMPONENT LIST

All parts are available from Radio Shack, Ohm Depot, electronics surplus, ham-fest tables, or dead consumer devices.

LID MK-III // FIELD PARTS
CASEGutted portable AM/FM radio case. Keep original knobs if possible. The less remarkable it looks, the better.
POWER9V battery clip or 4xAA battery holder, inline switch, small fuse. No wall power.
DETECTORFerrite rod AM antenna coil, diode detector, small trim capacitor, and analog VU meter or cheap needle meter.
MASKING SECTION555 timer or simple transistor noise circuit feeding a small speaker or piezo element. Audio stays low. The point is texture, not volume.
DETUNING LOOPInternal copper loop, 6 to 10 turns, mounted inside the case and connected only to the passive tuning network.
INDICATOROne green LED for power, one amber LED for carrier rise, one red LED for leave-now conditions. Optional, but Scraps likes lights because apparently civilization is over.

▸ 04 — BUILD SEQUENCE
STEP 01
Prepare the Case

Remove the radio board if it is dead. Keep the speaker grille, knobs, and battery door. Mount the battery holder so it can be replaced without opening the full unit.

STEP 02
Install Detector Path

Mount the ferrite rod horizontally inside the case. Wire the coil through a diode detector and trim capacitor to the needle meter. Adjust the trim until ordinary room noise barely moves the needle.

STEP 03
Install Masking Path

Build a low-volume 555 noise/pulse circuit and feed it to the original speaker or a piezo element. The output should sound like faint static, fan hiss, or transformer breath. If people can hear it clearly across the room, it is too loud.

STEP 04
Add Passive Detuning Loop

Wind the internal copper loop around the inside wall of the case. Do not connect it to the speaker circuit. It belongs to the tuning network, not the noise output.

STEP 05
Calibrate in a Known Quiet Room

Set baseline with the masking circuit off, then on. Mark three positions on the meter face: quiet, noisy, and leave. Use tape first. Ink comes after the unit survives a week.


▸ 05 — FIELD USE
OPERATING RULES
PLACESet the unit between the receiver group and the most likely line of infrastructure: wall outlets, phone junctions, fluorescent fixtures, relay equipment.
READNeedle steady in quiet band: continue. Amber rise: shorten the session. Red rise: stop talking and move.
MASKUse the audio texture during conversation, repairs, or note review. Do not run it all night unless you enjoy dead batteries and annoyed cats.
RECORDLog location, time, needle behavior, weather, nearby power equipment, and whether anyone felt watched before the meter moved.
SCRAPS: Best test is boring. Turn it on. Needle sits low. People talk better. Nobody gets a headache. Cat ignores it. That is a working machine.

INTEL-RES-004 // LID MK-III // SCRAPS & SID ZINE BUILD INDEX

[ END FIELD BUILD NOTES ]