Community price on backpack.tf: 212 keys, last changed 2017-03-01 (9.5y ago). The live quote above, 133 keys, is 37% lower and last moved 2d ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Price history
20 observations
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
Tesla Coil Phononaut sell price, 2025-09-25 to 2026-09-04: 20 observations, from 217 keys to 133 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
217 keys
177 keys
30 SEP 2025 · 21:25 UTC
216 keys
177 keys
9 OCT 2025 · 09:06 UTC
207 keys
186 keys
19 OCT 2025 · 20:54 UTC
197 keys
177 keys
25 OCT 2025 · 17:17 UTC
187 keys
169 keys
10 NOV 2025 · 01:18 UTC
192 keys
173 keys
22 JUN 2026 · 17:13 UTC
169 keys
147 keys
29 JUN 2026 · 01:14 UTC
176 keys
153 keys
5 JUL 2026 · 23:12 UTC
167 keys
145 keys
12 JUL 2026 · 22:44 UTC
168 keys
146 keys
19 JUL 2026 · 22:44 UTC
175 keys
152 keys
29 JUL 2026 · 06:44 UTC
183 keys
159 keys
3 AUG 2026 · 00:24 UTC
189 keys
165 keys
10 AUG 2026 · 11:10 UTC
194 keys
169 keys
18 AUG 2026 · 22:33 UTC
150 keys
130 keys
29 AUG 2026 · 00:09 UTC
135 keys
117 keys
30 AUG 2026 · 00:09 UTC
128 keys
111 keys
31 AUG 2026 · 04:09 UTC
133 keys
116 keys
31 AUG 2026 · 10:09 UTC
134 keys
117 keys
4 SEP 2026 · 02:08 UTC
133 keys
116 keys
Price history in numbers
20 readings since 25 Sep 2025
Over the last 30 days the Tesla Coil Phononaut's sell price ranged from 128 keys to 194 keys and is down 31.4% after 6 moves. Over a year it ranged from 128 keys to 217 keys (down 38.7%). Today's 133 keys sits in the lower third of its range: the lowest we have recorded is 128 keys (30 Aug 2026) and the highest 217 keys (25 Sep 2025). The price has moved 19 times since we began recording it — about once every 18 days.