Coin Pinger
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Gold coin guide
Gold Philharmonic 1 oz — ping test & specs
The Gold Vienna Philharmonic is the Austrian Mint's 1 oz .9999 gold bullion coin. At 37 mm it is wider and thinner than most 1 oz gold coins, giving it notably low ring frequencies.
Opens the free tester with this coin preselected — audio never leaves your device.
Official specifications
| Weight | 31.103 g |
| Diameter | 37 mm |
| Thickness | 2 mm |
| Composition | .9999 fine gold |
Source: Austrian Mint. Coin Pinger checks measured weight and diameter against these values.
Expected resonance range
Provisional confidence*| Mode | Expected ring | Recommended variance |
|---|---|---|
| c0d2 | 2.00–2.40 kHz | ±9% |
| c0d3 | 4.66–5.53 kHz | ±8.5% |
| c0d4 | 8.18–9.70 kHz | ±8.5% |
A genuine Gold Philharmonic 1 oz rings within these ranges at its c0d2/c0d3/c0d4 vibration modes, fixed by its size and metal. The recommended variance is how far a genuine specimen's ring can sit from each center — built up in quadrature from real manufacturing tolerance and temperature (under 1%), phone-mic capture reproducibility (≈4%), an extra allowance on the fundamental for minting-asymmetry splitting, and a per-metal model-uncertainty term (largest for .9999 gold, whose modulus is least certain). The higher modes also carry a small thick-plate centre correction, since a real coin is not infinitely thin. The provisional-confidence tag reflects how well-established this metal's constants are: Computed from .9999 gold's annealed modulus — the least-certain material input, so the band is widened and this reference is best confirmed by calibrating a coin you know is genuine. These are guidance bands, not exact values — see the methodology for the exact formula, or calibrate your own coin in the app for a specimen-exact reference and tighten each peak per coin.
* These are computed guidance ranges. Certain your Gold Philharmonic 1 oz is genuine but it won't match? Send us its ring — we'll dig in and improve the reference.
🎙 Submit sample pingsHow to ping test a Gold Philharmonic 1 oz
- Hold — grip the coin by its center (a nodal point) in a coin ping-test holder so the rim rings freely; a fingertip at the center is a last resort.
- Tap — strike the edge with a striker near the microphone.
- Read the verdict — MATCH or NO MATCH against the peaks above, plus weight and size checks.