MASTER VIOLET RAY – SPARK GAP WINDOW DIAL CONFIGURATION

MASTER VIOLET RAY – SPARK GAP WINDOW DIAL CONFIGURATION

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Overview

This is a classic Master Violet Ray, distinguished by its spark gap viewing window integrated directly into the control dial — a feature reserved for more technically transparent designs.

Rather than hiding the electrical behaviour, this unit allows the operator to see the discharge characteristics in real time, providing immediate visual feedback on output intensity and stability.

It is a confident, no-nonsense design built for users who understand electrical interaction rather than relying on guesswork.

Spark Gap Window Dial

The defining feature of this model is the spark gap window positioned at the dial, allowing direct observation of:

• Discharge consistency

• Spark intensity

• Output behaviour under adjustment

This was not added for show.

It serves as a functional diagnostic and tuning reference, enabling precise control and confirmation of correct operating conditions.

You see what the circuit is doing — not just what the knob claims it’s doing.

Output Character

The electrical output is:

• Clean and well-defined

• Stable across the usable range

• Easy to regulate with immediate visual confirmation

The discharge behaviour is controlled and predictable, making this unit especially satisfying to operate for those who value mechanical honesty and electrical clarity.

Electrodes

The clear-glass electrodes act as dielectric interfaces, allowing:

• Capacitive coupling

• Surface-level plasma interaction

• Field shaping through electrode geometry

Each electrode shape alters the interaction profile, reinforcing that geometry and electrical behaviour are inseparable in these systems.

Restoration

The unit has been fully electrically restored.

All capacitors have been replaced as standard, internal components checked and stabilised, and the system tested under load to confirm correct output, discharge behaviour, and spark gap performance.

The original electrical character has been preserved while ensuring long-term reliability.

Case & Presentation

The original lined case presents very well, with:

• Secure electrode storage

• Clean internal layout

• Period-correct materials and proportions

Everything fits exactly as intended.

Final Word

This Master Violet Ray with spark gap window dial is a technically honest, visually informative, and properly restored example of early high-frequency engineering.

It rewards understanding, invites interaction, and makes no attempt to hide how it works.

A serious piece for collectors and users who appreciate seeing electricity do exactly what it’s supposed to do.