Corn / Small-Cup Glass Electrode — Historic Form
A tiny flared cup at the end of a long glass stem — a distinctive small historical form.
Enquire for current availability.
A closer look.
The smallest cup in the cabinet
The little cup is what gives this electrode its personality. It is a tiny detail, but it completely changes the silhouette. An object like this is a reminder to look slowly through a case of glass rather than assume that every narrow attachment is the same. The old ranges were full of these precise variations, and identifying one brings a little more of the original cabinet back into focus.
Its place in the old catalogue
The maker named the small-cup form for local corn applications. That name is retained for historical identification.
A small piece of a bigger machine
The glass belongs to a larger arrangement of generator, resonator and handpiece. The head gives each form its distinctive working geometry: a broad face, a small cup, a row of fingers or a carefully curved stem. For a collector, those differences are part of the engineering story as much as the glowing glass itself.
Finding the right example
The tiny cup, its opening and the shape of the reservoir are useful comparison points. Enquire with photographs if you have a similar loose attachment to identify.
Enquire about this form
Tell us the maker and model, add a photograph of your handpiece and the attachment you are trying to replace, and we can discuss identification, sourcing and availability. The exact example and connection details are agreed individually.
About the illustration
Generated illustration of this historical electrode form, created for Forgotten Frequencies; not an actual stock photograph. The violet glow is artistic. The supplied example, gas fill, dimensions, connector and availability are confirmed by enquiry.
Historical reference
Master No. 18. The Master Violet Ray catalogue · Renulife Electric Company, 1919 manual