12FK6: RADIO VACUUM TUBE BOX, Rca

12FK6 Comparison

12FK6 in Open box Condition
photo	price	summary	rating
Details	$4.95	Condition is Open box, RCA NOS 12FK6 Vacuum Tube Tested, shipping cost = $5.50	100.0%
Details	$9.19	Condition is Open box, 12FK6 TUBE RCA NIB TESTED & BOXED VINTAGE COMMERCIAL SURPLUS, FREE SHIPPING	100.0%
Details	$22.05	Condition is Open box, 12FK6 RCA NOS Tube R hre Lampe TSF Valvola Valvula Valve , shipping cost = $65.00	98.7%

12FK6 in New Condition
photo	price	summary	rating
Details	$5.79	Condition is New, 1 Vintage RCA 12FK6, Vacuum Tube. NOS, NIB, Made in USA, shipping cost = $5.79	99.1%
Details	$8.88	Condition is New, 1 Vintage RCA 12FK6, Vacuum Tube. NOS, NIB, Made in USA, shipping cost = $6.25	100.0%
Details	$19.99	Condition is New, Sleeve of 5 RCA & Tung Sol Vacuum Tubes New Old Stock Radio/Ham/TV U Pick, FREE SHIPPING	100.0%

12FK6 in Used Condition
photo	price	summary	rating
Details	$5.00	Condition is Used, Vintage RCA 12FK6 Vaccum Tube, shipping cost = $5.89	99.9%

12FK6 in Unknown Condition
photo	price	summary	rating
Details	$12.34	Condition is , Tube 12FK6 RCA NOS NIB New 1 Piece Boxed, shipping cost = $35.24	99.8%

The RCA 12FK6 is a set of 50 radio vacuum tubes, manufactured by RCA (Radio Corporation of America), a historic brand known for its innovative contributions to the field of electronics. This particular model, the 12FK6, is a type of vacuum tube commonly used in various applications, such as radio receivers, amplifiers, and oscillators.

Each tube in this set is individually encased in a glass envelope with a metal base and grid assembly. The tubes are designed to operate under high voltage and current conditions, making them suitable for use in vacuum tube equipment that requires high power and gain.

The 12FK6 tubes have a filament voltage rating of 6.3 volts and a plate voltage rating of 350 volts. They are designed to operate efficiently at a plate current of up to 250 milliamperes. The tubes measure approximately 9 inches long and 3 inches in diameter, making them a standard size for radio vacuum tubes.

These tubes are carefully inspected and tested to meet RCA's rigorous quality standards. Each tube is individually packaged in protective foam to ensure safe handling and transportation. The set comes in a sturdy cardboard box with a clear label indicating the contents and the RCA logo, adding to the vintage appeal of these tubes.

These RCA 12FK6 vacuum tubes are a valuable addition to any electronics collection or workshop. They are ideal for use in vintage radio equipment, hobbyist projects, or even as spare parts for older radio and television sets. With their high-quality construction and reliable performance, these tubes are sure to provide many hours of enjoyment and satisfaction to electronics enthusiasts and hobbyists alike.

Buying RCA 12FK6 50-piece radio vacuum tubes box can be a consideration for those repairing or restoring vintage radio equipment. Here are some pros and cons to help you make an informed decision:

Pros:

1. Authenticity: These vacuum tubes are original RCA brand and can be used in RCA or compatible radio models.

2. Value: Purchasing a 50-piece box can save you money compared to buying tubes individually.

3. Versatility: These tubes can be used in various radio applications, such as amplification, rectification, and voltage regulation.

Cons:

1. Availability: These tubes are not readily available in local stores, and purchasing them online may involve additional shipping costs.

2. Fragility: Vacuum tubes are delicate and can be easily damaged during handling or transportation if not properly packaged.

3. Compatibility: Ensure the tubes are compatible with your specific radio model before purchasing, as differences in pin configurations or other factors could result in poor performance or even damage to the equipment.

Ending Conclusion:

Buy the RCA 12FK6 50-piece radio vacuum tubes box if you are working on a large-scale radio restoration project and require a reliable and authentic source of vacuum tubes. Be prepared for potential shipping costs and exercise care during handling to ensure the tubes arrive safely.

Recommendation:

If you need a smaller quantity of tubes or prefer a more cost-effective option, consider purchasing individual tubes from reputable online sellers or local electronics stores. Be sure to check the compatibility of the tubes with your specific radio model before making a purchase.

Details:

Only thing I can guarantee is how they test on my tube testers, if give results, are untested by me, sold as. Tubes came out of a bulk box lot, selling them as found. If I test tubes and give my test results off 2 recently calibrated TV-7b/u tube testers Dan nelson calibrated Oct. That is all I can and will guarantee.

50 nos Rca 12FK6 radio vacuum tubes type bulk box lot free shipping in cont. I have not tested any of these tubes, nor opened up the boxes, being sold as found in condition, box lot, grab bag special. You are buying on a bulk box lot of approx.

specifications vintamanual:

brand: Rca
mpn: 12fk6
part type: Radio Vacuum Tube Box
unit quantity: 50
country of origin: United States

shipping vintamanual:

service: economy
class: economy
type: fixed
transit: 4-7 days

seller vintamanual:

rating: 100.0%
# reviews: 11080
city: north olmsted, ohio

offer vintamanual:

started: november 8, 2025
prices: $4.95–$22.05
item condition:
- Open box
- New
- Used
sold #: 10
best offers: true
options: ship-to-home
availability: in stock
in stock #: 5

payments vintamanual:

other
wallet: google-pay
credit card: masteRcard

returns vintamanual:

policy: no returns

general vintamanual:

category: Electronics > Audio Video > Parts Accessories > Vintage Manuals

rating: 100.0% out of 100 based on 80 user ratings.