SYLVANIA SY-235 Nos Control Tetrode Vacuum Tubes

( Brand: Sylvania ), ( Model: SY-235 ), ( Type: Vacuum Tube ), ( Country/region Of Manufacture: United States )

Review SYLVANIA Matched Pair Nos Super Control Tetrode Vacuum Tubes Tested 35

The SY-235 Sylvania NOS Control Tetrode Vacuum Tubes are a true gem for audiophiles and vintage electronics enthusiasts. These tubes are manufactured by Sylvania, a renowned name in the vacuum tube industry, and are designated as "NOS," meaning they are New Old Stock, meaning they have never been used before but were manufactured in the past.

The SY-235 tubes are control tetrodes, a type of vacuum tube that is primarily used for radio frequency (RF) amplification in high-frequency applications. They are characterized by their superior performance in terms of gain, linearity, and power handling.

The SY-235 tubes feature a tetrode configuration, which means they have three active components: two grid electrodes and one cathode. This design allows for efficient power handling and high-frequency operation, making it an excellent choice for applications such as RF amplifiers, oscillators, and mixers in communication and audio equipment.

The tubes are made with high-quality materials, including a specially formulated glass envelope and a tungsten filament. The glass envelope is designed to withstand high temperatures and pressures, while the tungsten filament is known for its longevity and resistance to oxidation. The tubes also feature a high-quality metal baseplate and a set of precision-machined metal pins for easy installation.

The SY-235 Sylvania NOS Control Tetrode Vacuum Tubes are a must-have for those looking to recreate the classic sound of vintage audio equipment or for those building their own custom amplifiers. With their superior performance, high-quality construction, and NOS status, these tubes are sure to provide years of enjoyment and satisfaction for any audio enthusiast.

1. Authenticity: New Old Stock (NOS) tubes are original tubes that were manufactured during a specific period and have been stored away for years, ensuring that you are getting a genuine tube.

2. Performance: NOS tubes are often regarded as having better performance than modern tubes due to the manufacturing processes and materials used during their production.

3. Collectibility: NOS tubes are highly collectible, making them a valuable investment for audio enthusiasts and collectors.

4. Durability: Vacuum tubes are known for their durability, and NOS tubes are no exception. They are less likely to fail compared to modern tubes due to their high-quality construction.

1. Availability: NOS tubes are not as widely available as modern tubes, and they can be more expensive to purchase.

2. Compatibility: NOS tubes may not be compatible with modern equipment due to differences in manufacturing processes and specifications.

3. Risk of Damage: NOS tubes have been stored away for years, and there is a risk of damage during shipping or handling.

4. Limited Warranty: Unlike modern tubes, NOS tubes may not come with a warranty, leaving the buyer responsible for any issues that may arise.

Sy-235 Sylvania NOS Control Tetrode Vacuum Tubes 35 offer several advantages, including authenticity, better performance, and durability. However, they also come with disadvantages such as limited availability, compatibility issues, risk of damage, and a lack of warranty. Ultimately, the decision to purchase NOS tubes depends on the buyer's priorities and budget. If the benefits outweigh the drawbacks, then buying NOS tubes can be a worthwhile investment for audio enthusiasts and collectors.

1. Research the compatibility of the tubes with your equipment to ensure they will work properly.

2. Consider purchasing from a reputable dealer to ensure the tubes are in good condition and have been properly stored.

3. Be prepared to pay a premium price for NOS tubes due to their scarcity and collectibility.

4. Consider buying a few extra tubes to have as backups or to use in different equipment.

5. Enjoy the unique sound and performance that NOS tubes offer, and take pride in owning a piece of audio history.

Details:

I try to resolve any issue both our best interests.

That is what they are there for. In regards to the case or cover, then cover is just holding itself together. When using the word matched it means in test results rather than cosmetic looks.

I use a tv7 u military spec tester which is calibrated. May be good or above.

It is just my opinion and I would rather paint a bleaker picture of something than saying better. Light scratching to the case cover.

So this shows what I get, and you get may be slightly different. Tested with a calibrated Hickok 752a photos shown in this listing are of the actual item for sale.

Or if this is in grading regard to the case cover then there may be cracks torn has rips along its edges scuffed quite badly. Heavy scratching to the disc. Then I have not test it.

Cd record still plays OK. So to recap.

Sorry for you having to read this but would be surprised how many people think the items come with my table or a part of anatomy that I have accidentally caught on camera. I also pack well.

So take a good look. Rectifiers and diode tubes do not have trans conductance values. Please have a look at the pictures for cosmetic condition. In regards to the case cover then this grading means or sleeve is badly torn, scuffed, cracked and falling apart.

By buying on this item you agree to these stipulations and follow the instructions of post office, or carrier. Very good - used light scratching to both the case and CD record.

Vacuum tube testing I do not sell just passable tubes. The numbers letters in parentheses are equivalents put to help people find correct tube. I am quite harsh on what is good and bad.

Fair - the CD. Record plays, sometimes skips. In photographs we occasionally use props to display items the best light possible do not mark merchandise values below value or as gifts, 'demos', etc. Whilst I endeavor to put tubes together from the same year and look same, this is not always case.

Cd record does not play.

Cd still plays well. May be very light scratching but not noticeable or the case cover scuffed a little excellent ware to both CD record I have same tube from differing years matched up in test results, which means they cosmetically internally look different. If not fully tested, then items are to the full extent and may have something wrong that I discovered.

New - unopened brand new, sealed. Please realize when buying antique, vintage or used equipment that they cannot be in an absolute mint perfect condition, might need some service, now later. Like new - used but no obvious signs of use.

Or have only gone so far to test it. If I say untested. Via messaging.

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

I am not a huge retail outlet. Cover is in good condition but has normal wear and tear.

All tubes have passed the gas and short tests. It is impossible to describe every scratch, scuff or mark. Low and weak tubes are unceremoniously thrown in the nearest trash can, unless they collectors items. This offer is for a. If it does not say base, stand, table in either the main body of or title.

This means that I have tested something not to its full extent. Use the zoom function and have a good look. Slightly heavier than above.

In these cases it is best buying on as if was broken. I also sometimes use a Hickok 752 for testing if state any values they are guide only.

It is up to you make a judgment call and decide if worth the risk of buying.

We check and describe the as much of functionality can. Light and medium scratching. They will normally want to see the item and packing.

Then they are not included in the sale. All tubes purchased have loads of life left in them.

I take lots of pictures so you can see cosmetics. If you're unhappy with an item.

I do not publish test results in the listing as what get, and someone else might get can be different.

Very good plus - used, some light scratching to either the case or CD record. I have 4 of these machines and all display a slightly differing value if test the same tube, as two testers are never. I make mistakes once in a while.

Most have one. If it does not say matched then please do consider them to be such.

part #: sy235 prices

• $19.95-$225.00

specifications tubesocketvintagego:

• brand: Sylvania
• model: Sy-235
• type: Vacuum Tube
• country/region of manufacture: United States

Shipping tubesocketvintagego:

• type: Calculated
• handling: 2 days
• cost: $4.11

Ratings:

1. ReibungsloseSehr angenehmer Gesch ftspartner. 06-05-16
2. Good buyer, prompt payment, valued customer, highly recommended. 02-08-16
3. Excellent buyer ! Would do business with again ! A Fast payment too. 03-15-16
4. / / SMOOTH SAILING ALL THE WAY / / 02-09-16
5. The BEST PERFECT TRANSACTION JUST FLAWLESS COMEBACK ANYTIME Thank You Very Much 02-16-16

Payments tubesocketvintagego:

• PayPal

Returns tubesocketvintagego:

• paid by: Buyer
• type: Money Back
• policy: returns accepted
• time: 14 Days

Offer tubesocketvintagego:

• Sold: 0
• bids: 0
• quantity: 7
• Started: March 14, 2017, 11:46 pm
• best offer: true

Seller tubesocketvintagego:

• zipcode: 86401
• city: Kingman, Arizona

General tubesocketvintagego:

• in stock: Yes
• consumer electronics > vintage electronics > vintage audio video parts accessories consumer electronics > vintage tubestubes sockets audio

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