RCA 5557 Triode Nos Tube Spark Mercury Vapor Thyratron FG17

( Brand: Rca ), ( Model: FG17 5557 ), ( Type: Nos Tube ), ( Country/region Of Manufacture: United States )

Review RCA Type Triode Nos Tube Spark Protection Mercury vapor Thyratron

The FG17 Triode NOS Tube RCA Spark 5557 Mercury-Vapor Thyratron is a vintage electronic component that harks back to the golden age of audio technology. This tube is a true nostalgia piece for audiophiles and electronics enthusiasts who appreciate the rich, warm sound that only tubes can provide.

The FG17 Triode is a 5557 type tube, which is a triode-connected thyratron. It uses mercury vapor as its switching medium, making it a unique and powerful component in audio applications. The mercury vapor thyratron is known for its fast switching capabilities, making it ideal for use in high-frequency applications such as radio frequency (RF) amplifiers and oscillators.

The FG17 Triode is a New Old Stock (NOS) tube, meaning it is a brand new tube that has been stored in its original packaging since it was manufactured. This ensures that the tube has not been exposed to the elements and has not degraded over time. NOS tubes are highly sought after by collectors and audiophiles because they are known for their superior sound quality compared to modern tubes.

The FG17 Triode is a versatile tube that can be used in a variety of audio applications. It can be used as a driver tube in a power amplifier, as a preamp tube in a vacuum tube amplifier, or as a RF amplifier in a radio receiver. It is also commonly used in vintage audio equipment such as tube amplifiers, hi-fi systems, and even in some professional audio equipment.

The FG17 Triode is a visually stunning tube, with its distinctive glass body and glowing mercury vapor. It is a true work of art, and is sure to be a conversation piece in any audio setup. The tube is well-built and is made to last, with a robust glass envelope and a sturdy metal base.

In summary, the FG17 Triode NOS Tube RCA Spark 5557 Mercury-Vapor Thyratron is a vintage electronic component that delivers rich, warm sound and fast switching capabilities. It is a true nostalgia piece for audiophiles and electronics enthusiasts, and is a versatile tube that can be used in a variety of audio applications. With its distinctive appearance and robust construction, the FG17 Triode is sure to be a cherished addition to any audio setup.

1. Authenticity: NOS (New Old Stock) tubes are original tubes that have been in storage since they were manufactured, ensuring that they have not been used or degraded over time.

2. Sound quality: NOS tubes are often praised for their superior sound quality compared to modern tubes, as they are made using older, more traditional manufacturing processes.

3. Collectibility: NOS tubes are highly collectible and can be a valuable addition to any vintage audio system.

4. Durability: NOS tubes are often built to last longer than modern tubes, as they were made using higher-quality materials and manufacturing processes.

1. Expense: NOS tubes can be significantly more expensive than modern tubes, as they are harder to come by and often require specialized knowledge to repair or replace.

2. Limited availability: NOS tubes may be hard to find, especially for less common models or brands.

3. Compatibility: NOS tubes may not be compatible with modern equipment, so it is important to ensure that the tube is compatible with your audio system before purchasing.

4. Maintenance: NOS tubes may require more maintenance and care than modern tubes, as they are older and may be more prone to issues.

If you are an audiophile with a vintage audio system, or if you are a collector of NOS tubes, the FG17 Triode NOS Tube RCA Spark 5557 Mercury-Vapor Thyratron may be a worthwhile investment. The tube's superior sound quality and collectibility can make it a valuable addition to your system. However, it is important to consider the expense and potential compatibility issues before making a purchase. I would recommend doing thorough research and consulting with a knowledgeable audio expert before purchasing any NOS tubes.

If you are interested in the FG17 Triode NOS Tube RCA Spark 5557 Mercury-Vapor Thyratron, I would recommend doing research on the tube's specifications and compatibility with your audio system. It may also be helpful to consult with a knowledgeable audio expert, such as a repair shop or dealer, to ensure that the tube is a good fit for your needs. Additionally, be prepared to pay a premium for the tube's rarity and collectibility.

Details:

May be good or above.

Very good plus used, some light scratching to either the case or CD record. Backwards compatible with earlier designs.

If fully tested then that is what they are. This is a process, and it takes time.

Backwards compatible with earlier designs. Example 2a3, 6a3. It is just my opinion and I would rather paint a bleaker picture of something rather than saying it is better than it is.

It is impossible to describe every scratch, scuff or mark. If I say untested. Medium to heavy scratching.

Cover is in good condition but has normal wear and tear. If you know that both metal and glass versions were manufactured, then no suffix is a metal envelope tube example original 6l6, 6f6, 6v6, 6n6, etc were all metal envelope tubes. I make mistakes once in a while.

The a improvements were primarily controlled heater warm up time and or low noise low hum. Or if this is in grading is in regard to the case cover then there may be cracks in the case or the cover is torn, or has rips along its edges or scuffed quite badly. The numbers letters in parentheses are equivalents put in to help people to find the correct tube.

Please have a look at the pictures for the cosmetic condition. All tubes have passed the gas and short tests. Distinguishes from a metal envelope tube.

In regards to the case cover then this grading means the case or sleeve is badly torn, scuffed, cracked and is falling apart.

They will normally want to see the item and packing.

M r has absolutely no special audiophile connotation. Backwards compatible with earlier designs. Suffixes that are useful when looking at tubes glass envelope, which distinguishes from a metal envelope tube ruggedest construction, meets mil 1 a us military specifications, and therefore most w tubes are us military inventory.

Most have one. So take a good look. Please realize when buying antique, vintage or used equipment that they cannot be in an absolute mint or absolute perfect condition, they might need some service, now or later.

Fully working. In photographs we occasionally use props to display items in the best light possible. That is what they are there for.

Cd record still plays OK. I may have the same tube but from differing years matched up in test results, which means they may cosmetically or internally look a little different. I can test the same tube on each tester and get differing results on each.

By buying on this item you agree to these stipulations and to follow the instructions of the post office, or carrier. When using the word matched it means in test results rather than in cosmetic looks.

If I state any values they are for a guide only. I take lots of pictures so you can see cosmetics.

In these cases it is best buying on it as if it was broken.

If only one type of envelope was manufactured for that type, then no suffix simply refers to the tube being the original design of the tube. A more complete list of suffixes and their exact meaning none without more context, a tube with no suffix does not tell you very much. Cd record does not play.

May be very light scratching but not noticeable or the case cover may be scuffed a little excellent very light ware to the CD record or case cover. During ww2, military need for vacuum tubes created a large shortage of tubes that could be purchased by civilians.

Use the zoom function and have a good look. If you're unhappy with an item.

This offer is for a if it does not say base, stand, table, my wife, in either the main body of the or title.

I try to resolve any issue to both our best interests. Light scratching to the case cover.

Then they are not included in the sale. Sorry for you having to read this but you would be surprised how many people think the items come with my table, the wife's legs etc. Fair the CD record plays, sometimes skips.

Like new used but no obvious signs of use.

Low and weak tubes are unceremoniously thrown in the nearest trash can, unless they are collectors items. Then I have not test it.

So to recap. If not fully tested, then items are not tested to the full extent and may have something wrong that I have not discovered. This means that I have tested something not to its full extent.

Vacuum tube testing I do not sell just passable vacuum tubes. Whilst I endeavor to put tubes together from the same year and look the same, this is not always the case. In regards to the case or cover, then the case cover is just holding itself together.

It is up to you to make a judgment call and decide if it is worth the risk of buying. GB 5 glass unflappable t9 glass envelope with local base gm or mg metal coated glass envelope with octal Basel mt 8 metal envelope and octal ox basely t9 glass envelope and octal ox base metal envelope and octal Basel t9 metal envelope with local base r while not technically a suffix, Mr when stamped on tube base only means that the tube was manufactured during ww2 for maintenance and repair of civilian radios. Cd still plays well. Or have only gone so far to test it.

All tubes purchased have loads of life left in them.

Rectifiers and diode tubes do not have trans conductance values. Plays well.

Very good used light scratching to both the case and CD record. Via messaging.

Light and medium scratching. I am quite harsh on what is good and bad.

specifications tubesocketvintagego:

• brand: Rca
• model: Fg17 5557
• type: Nos Tube
• country/region of manufacture: United States

Shipping tubesocketvintagego:

• type: Calculated
• handling: 1 days

General tubesocketvintagego:

• Consumer Electronics > Vintage Electronics > Vintage Audio & Video > Vintage Parts & Accessories > Vintage Tubes & Tube Sockets
• in stock: Yes

Ratings:

1. Thank You!!! 05-19-16
2. well packed,fast shipping,item as described 05-18-16
3. Excellent service! 05-19-16
4. Nice. 05-14-16
5. Very Honest seller, speaker was damaged before shipping, gave a full refund 05-15-16

Payments tubesocketvintagego:

• PayPal

Seller tubesocketvintagego:

• zipcode: 86431
• city: Chloride, Arizona

Offer tubesocketvintagego:

• quantity: 1
• Started: May 19, 2016, 3:36 pm
• # bids: 0
• # Sold: 0
• best offer: false

Returns tubesocketvintagego:

• policy: returns accepted
• type: Money Back
• time: 30 Days
• paid by: Buyer

Rca FG17 Is Similar To:

• 0-30 Rca Vacuum Tube Tested (25.5% similar) If there will ever be a delay in shipping, you promptly notified. Up for a sale is single Rca 0-30 vacuum tube. It was tested on a b k tube DNA jet model 606 and or knight 600 series. Tested strong 70 or better with no pin shorts grid emissions...(August 7th, 2018)
• 0116010 Rca Type Triode Power Tube Hickok Tested Guaranteed Very Strong (35.6% similar) Not as accurate my AT1000 but great for antique tubes. Shipping costs from item location to the us. Bull antique tube sale free shipping all tubes tested guaranteed I enjoy selling the because get to do things old fashioned way on my Hickok 752A which is Paul hart calibrated for use with a Mauriac. ...(January 27th, 2019)
• 01a C-01-a Rca New Old Stock Nos Cunningham Radio Tube In Original (29.8% similar) Don't let this one get by. Rca Cunningham radio tube C-01-A the is in its original box, never opened with staples tact. The filament test excellent. It is very rare to get an 01A in its original box, never used...(March 8th, 2019)
• 04126033904 Rca Sylvania Vintage Nos (16.2% similar) Please see photos for numbers and brands. Up for consideration is a lot of 130 radio, television, electronic tubes...(July 21st, 2017)
• 0d3a Rca Lot 3 Nos (17.2% similar) Free domestic economy shipping handling on this item. This offer is for a lot of 3 vintage nos new old stock Rca type 0D3A VR-150 voltage regulator vacuum tubes in the original boxes. These tubes appear to be new and in nice condition, but are untested selling as-is. These tubes have matching date...(April 30th, 2017)
• 109816 Rca Vintage Tv Picture Tube Socket Assembly Color Round Crt (27% similar) This item is new old stock. Never used or installed and still in original box from factory. Please with any questions before purchasing. It would have been for early color TV sets from the late 1950S to 1960 'S. Rca TV picture tube socket for 21 this is the exact replacement part that would ...(September 21st, 2018)
• Three Volt 10 Boxes Tested Rca 10bq5 Tubes 6bq5 Vacum Nos Lot Valves (15.4% similar) They were all tested on a recently calibrated b k 747B mutual conductance tester. I have for sale three nos Rca 10BQ5 vacuum tubes. All three tubes tested at 120 out of 120 and showed no shorts or grid emission. These are new tubes in their original boxes...(February 6th, 2015)
• Vacuum Box Ll86 10cw5 Rca Tube (21% similar) Rca vacuum tube in box 10CW5 LL86 image. Warranty all merchandise is sold as is, where is...(February 9th, 2015)
• Xe5 Cl-8 188-5 National 10dx8 5 Sylvania Lot Rca Vintage Ge Tube 6f6g (22.2% similar) Vintage 5 tube lot Rca XE5 cl 8 national 6F6G sylvan 10DX8 GE tubes have not been tested. There is a Rca tube in a national box...(March 5th, 2015)
• 10hf8 Rca Vacuum Electron Tube (38.1% similar) Your help is always appreciated...(August 7th, 2018)
• 10ku8 Rca Vintage Vacuum Tube (30.8% similar) Buy for shipping handling. Tested good, no shorts, gas, good emission. Rca 10KU8 vacuum tube, new in box old stock...(January 10th, 2018)