Crystal Radio - Variometer aka Vario Coupler
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Estimated printing price per file
€0.69 – €0.84 net (excluding VAT)
For file: VariometerInnerTAB05eSMALLTEST27m.gcode
This is an estimate for one file. You’ll confirm the exact price before ordering.
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File used for this estimate
Average indicative estimate: €0.76 excluding VAT (range midpoint).
- Weight reported by the author
- 15 g
- Print time reported by the author
- 30 min
- Source material
- PLA
- Estimate material
- PLA
- Estimate printer
- Bambu Lab P1S - 0.4 nozzle
- Estimate process
- 0.20mm Standard
Indicative estimate for the selected file only, based on the author’s weight and print time. File variants are not added together. The final price is calculated after file analysis.
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This is the core of a variometer (also called a vario coupler) used in radios from crystal type to the early vacuum tube
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial
This is the core of a variometer (also called a vario coupler) used in radios from crystal type to the early vacuum tube radios.
I strongly recommend using a filament with no pigment, as many pigments interfere with RF signals.
Print Settings
- Printer brand:
Creality
- Printer:
Ender 3 Pro
- Rafts:
Doesn't Matter
- Supports:
Doesn't Matter
- Resolution:
Standard
- Infill:
20%
- Filament brand:
Any
- Filament color:
No Color
- Filament material:
PLA or other
- Notes:
Again, use a filament with no pigment or very little pigment. Pigments often have metallic bases and interfere with radio frequency signals.
You need to print 2 of each. The inner ball is glued together with superglue.
20231101: Upgrade - Added shaftway to the inner ball making mounting the shaft / electrical contacts 100x easier / stronger. Also added arrows indicating the direction of windings.