Electron tube · RCA · price guide
RCA 12SN7GT value
A RCA 12SN7GT electron tube sells for about $17.98 on eBay, from 16 sales between Jul 17, 2026 and Sep 14, 2026. Most sell for $10.50 to $29.16. Used ones bring $18.42, new ones $16.50.
1 sale above $60 drawn at the top edge.
See the numbers
| Month | Sales | Middle price |
|---|---|---|
| Jul 2026 | 4 | $23.97 |
| Aug 2026 | 9 | $18 |
| Sep 2026 | 3 | $12 |
The flip math
What one RCA 12SN7GT is worth to a reseller, line by line.
To keep at least 2 times what you pay, bid no more than $0. Above $1.19 you lose money after every fee. Run your own numbers.
Selling notes
- 13% of sales shipped free; the rest charged a middle $6.34 for shipping.
- 6% sold through Best Offer, where the real price can be lower than shown.
- 0 sold in the last 30 days, 11 in the last 90.
Questions
How much is a used RCA 12SN7GT electron tube worth?
About $18.42 on eBay, the middle of 8 used sales between Jul 17, 2026 and Sep 14, 2026. Most used ones sell for $10.50 to $29.16 once new ones are counted too.
What does a new RCA 12SN7GT electron tube sell for?
New ones sold for a middle price of $16.50 across 8 eBay sales.
How fast does a RCA 12SN7GT sell?
0 sold on eBay in the last 30 days and 11 in the last 90. 13% of sales came with free shipping.
Is a RCA 12SN7GT worth flipping?
Sold at $10.50 on eBay you keep about $3.53 after fees, shipping and a returns buffer. To double your money, pay no more than $0 as a winning bid with an 18% premium and 9% tax.
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Have one? Look it up
Snap a photo or scan the barcode and see what yours sells for, new and used, with every fee counted.
Look up yoursHow we got these numbers
- 16 eBay sales of the RCA 12SN7GT from Jul 17, 2026 to Sep 14, 2026, each one checked to be this model (at least half name it in the listing; the rest match it closely).
- eBay prices are completed sales (what buyers paid), not asking prices, from our sold-data provider. We keep only sales of the same product: parts, accessories, bundles and look-alikes are dropped before anything is counted.
- Local auction prices are winning bids on single-item lots at the Kansas and Missouri online auctions we track (HiBid and Equip-Bid sellers), read by our own lot reader. Lots of several units are left out.
- The money math uses our standard costs: 18% buyer's premium, 9% sales tax, a $2.00 lot fee, eBay's 13.6% + $0.40 fee, shipping at cost (never counted as profit) and a 15% buffer for returns and duds. Members set their own.