1. Vintage Tubes & Sockets Audio For Sale
  2. sku: 1789884931041291
  3. EIMAC 4S250R

EIMAC 4CS250R Ham Radio Electron Tube Conduction Cooled Box 4S250R Tetrode Sheet

4cs250r 4s250r Eimac Ham Radio

( Brand: Eimac ), ( Model: 4S250R ), ( Type: Conduction Cooled Tetrodes ), ( Country/region Of Manufacture: United States )

Review EIMAC Ham Radio Electron Tube Conduction Cooled Tetrode Box Spec Sheet

The 4CS250R Eimac Ham Radio Electron Tube is a high-performance conduction-cooled tetrode vacuum tube, specifically designed for use in radio frequency (RF) applications. This tube, with its model number 4S250R, is a part of Eimac's extensive portfolio of top-tier electronic tubes.

The 4CS250R is a tetrode tube, which means it has four electrodes: a cathode, an anode, a grid, and a screen. This design allows for improved efficiency and control over the electron flow, resulting in improved performance and reduced power consumption.

This tube is conduction-cooled, which means it relies on the direct transfer of heat from the tube to a cooling surface to dissipate the generated heat. This method of cooling is highly efficient and allows for the tube to operate at higher power levels and with increased reliability.

The 4CS250R is designed for use in the 2200 to 2700 MHz frequency range, making it an excellent choice for applications such as amateur radio, satellite communications, and microwave communications. Its tetrode design allows for high gain and high power handling capabilities, making it suitable for both linear amplifier and oscillator applications.

The 4CS250R is manufactured using Eimac's rigorous quality control processes, ensuring that it meets the highest standards of performance, reliability, and consistency. This tube is built to last, with a robust construction that can withstand the rigors of high-power RF applications.

In summary, the 4CS250R Eimac Ham Radio Electron Tube is a high-performance conduction-cooled tetrode tube designed for use in RF applications. Its tetrode design allows for high gain and power handling capabilities, making it suitable for both linear amplifier and oscillator applications. The tube's conduction cooling method ensures efficient heat dissipation, allowing it to operate at high power levels and with increased reliability. Manufactured using Eimac's rigorous quality control processes, this tube is built to last and is an excellent choice for applications in the 2200 to 2700 MHz frequency range.

Pros of buying a 4Cs250R Eimac Ham Radio Electron Tube Conduction Cooled Tetrode:

1. High Power Output: The 4Cs250R is a powerful tetrode tube with a high power output, making it suitable for high-power amplifiers.

2. Conduction Cooling: The tube uses conduction cooling, which is more efficient and reliable than conventional cooling methods, resulting in a longer tube life.

3. Long Tube Life: Conduction cooling also helps to reduce the risk of tube failure, resulting in a longer tube life.

4. Improved Efficiency: Conduction cooling improves the efficiency of the tube, resulting in lower power consumption and reduced heat dissipation.

Cons of buying a 4Cs250R Eimac Ham Radio Electron Tube Conduction Cooled Tetrode:

1. Expensive: The 4Cs250R is a high-end tube and is relatively expensive compared to other tubes on the market.

2. Limited Availability: Due to its high-end nature, the 4Cs250R may be harder to find in stores or online, and availability may be limited.

3. Complex Installation: The conduction cooling system can be complex to install, and may require additional equipment and expertise to set up correctly.

4. Limited Compatibility: The 4Cs250R may not be compatible with all amplifier designs, so it is important to check compatibility before purchasing.

Conclusion:

The 4Cs250R Eimac Ham Radio Electron Tube Conduction Cooled Tetrode is a high-quality, high-power tube with many advantages, such as its conduction cooling system, long tube life, and improved efficiency. However, it is also an expensive and complex option that may not be suitable for all users. If you are looking for a powerful tube for a high-power amplifier and are willing to invest in a high-end option, the 4Cs250R could be a good choice for you. However, if you are looking for a more affordable or simpler option, there may be other tubes that better meet your needs.

Recommendation:

If you are looking for a high-power tube for a high-power amplifier and are willing to invest in a high-end option, the 4Cs250R Eimac Ham Radio Electron Tube Conduction Cooled Tetrode is a good choice. However, it is important to carefully consider your needs and budget before making a purchase, and to ensure that the tube is compatible with your amplifier design. It may also be a good idea to consult with an experienced technician or dealer to ensure that the tube is installed and used correctly.

Details:

Not sure if it is nos or used. I got this at a ham fest, bought an and the guy gave me with it.

Selling as is.

part #: 4s250r prices

  • $79.00-$199.97

specifications tubesocketvintagego:

  • brand: Eimac
  • model: 4s250r
  • type: Conduction Cooled Tetrodes
  • country/region of manufacture: United States

Payments tubesocketvintagego:

  • PayPal

Seller tubesocketvintagego:

  • city: Chesterton, Indiana
  • zipcode: 46304

General tubesocketvintagego:

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

Offer tubesocketvintagego:

  • quantity: 1
  • min. bid: $9.99
  • best offer: false
  • bids: 0
  • : true
  • Sold: 0
  • Started: March 25, 2017, 7:50 pm

Shipping tubesocketvintagego:

  • type: Flat
  • cost: $4.0
  • handling: 1 days

Ratings:

  1. GREAT AAA 03-25-17
  2. Super fast shipping! Great item! Thank you! 03-22-17
  3. Good 03-22-17
  4. Mic looks brand new, shipped very quickly, works great. Thanks! 03-24-17
  5. Fast payment, great communication. An A-1 ! Thanks!! 03-18-17

Returns tubesocketvintagego:

  • paid by: Buyer
  • policy: returns accepted
  • time: 14 Days
  • type: Money Back
type: conduction cooled tetrodes, country/region of manufacture: united states,
category: electronics > vintage electronics > vintage audio video parts accessories consumer electronics > vintage tubestubes sockets audio, sku: 1789884931041291,
Review#1 GREAT AAA ()
Review#2 Super fast shipping! Great item! Thank you! ()
Review#3 Good ()
Review#4 Mic looks brand new, shipped very quickly, works great. Thanks! ()
Review#5 Fast payment, great communication. An A-1 ! Thanks!! ()
Eimac 4S250R Is Similar To:
  • (30.1% similar) Up for offer is a Johnson tube socket for the 4CX250 series transmitting power tubes. Shipping is a flat this unit is part number some pin connections are already soldered to the case, but can easily be un soldered. This is a 7 pin socket with a large pin...(January 29th, 2015)
  • (34.8% similar) Buying and offers: all questions, conditions, constraints shall be made prior to making an offer or purchase, any after placement of the order are null void. Prior to placing an order for a price quote any noise or microphone testing. The testing is done on vintage tube testers. This listing is for ...(June 10th, 2018)
  • (28.6% similar) For out of country shipping, our standard shipping is us postal 1ST class service and delivery confirmation is not always available. One Eimac 2/2 5a ham radio vacuum tube, made in the USA. Please review the photo for more detail. We combine shipping when applicable. The tube has a gray circular ...(February 10th, 2015)
  • (42.6% similar) New in worn open box. No manuals,no standard power cords, even if it appears in the photo, accessories, software etc are included unless pictured and noted. You can also after a sale if have return issues or any other concerns. All equipment is sold-as-is...(April 3rd, 2017)
  • (54% similar) Eimac 250-R...(August 3rd, 2018)
  • (34.2% similar) For display only. When filament voltage is applied tube has a grid to short. Thanks mike...(January 19th, 2019)
  • (28.9% similar) The shirt is black with white image. Posted with mobile posted with mobile. This is a 100 cotton shirt with a image of a Eimac 3/5 00Z vacuum tube screen printed on the front. The shirt is size XL. I have this shirt in sizes small to XL. On APR at PDT, free...(January 23rd, 2015)
  • (33.3% similar) ...(January 12th, 2015)
  • (49.2% similar) I charge real price paid, I'm not in the business of MAKING2MONEY on shipping. The item that is on offer actual in our possession. Know to be working fine, no other test made, sold as found condition. Winner pay actual shipping cost plus packing fees, about 30 for USA and Canada 20 QC on. Pickup is ...(March 7th, 2017)
  • (50.8% similar) Tube looks very good with no cracks or missing parts. Eimac 304TH VT254 WWII radio tube vintage era has not been tested...(July 11th, 2018)
  • (27.2% similar) Lot of 5 tubes 4 Jan Eimac 1 sylvan VT129 304TL 304 Tl no boxes, will include a pair of finned anode dissipation connectors free and 1 socket free shipping in Canada cheers...(February 18th, 2015)
tubesocketvintagego logo
2 offers $79.00–$199.97 USD
  • Open box. Offer #1 priced at $79.00 + $7.90 shipping estimate = $86.90* total. Sold as is. I am unsure if these were ever used.+$7.90 shipping
  • For parts or not working. Offer #2 priced at $199.97 + $15.00 shipping estimate = $214.97* total. ). This is for a Lot of 13 Electron Tube Tube Varian/Eimac (10 of 8560AS, and Motorola (3) of 65-83382D02.+$15.00 shipping

Copyright © tubesocketvintagego.com