eBay
  • Daily Deals
  • Sell
  • Customer Support
  • Shop now

This listing has ended. The seller has relisted this item or one like this.

 
Ships to:
Americas, Europe, Japan See exclusions
Delivery:
Visit store:
QRO-Stuff
 
Ships to:
Americas, Europe, Japan See exclusions

Details about  Tube GS-35B (GS35B,GS35) 2,5kW. NEW IN BOX !

See original listing
Tube GS-35B (GS35B,GS35) 2,5kW. NEW IN BOX !
Tube-GS-35B-GS35B-GS35-2-5kW-NEW-IN-BOX
Item Ended
Item condition:
New
Ended:
Jan 26, 2012 15:57:35 PST
Price:
US $189.50
Shipping:
$59.50 Standard Shipping | See details
Item location:
frm RUSSIA Delivery to US via Texas, United States

Description

eBay item number:
150726632495
Seller assumes all responsibility for this listing.
Last updated on  Jan 22, 2012 01:12:29 PST  View all revisions

Item specifics

Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Brand:

NEVZ-Soyuz

Model:

GS-35B


                       

GS-35B 2,5kW Power Tube.

New in Box! 

HF-VHF-UHF POWER COAXIAL TRIODE

With 4kV on plate >3.0 kW can be expected on 144MHz in a grounded grid amplifier!

REAL  CHARACTERISTICS:

Intermodulation distortion of the 3rd order - minus 32 dB

Anode Dissipation - 2.5 kW

Grid Dissipation - 26 W

Cathode- Oxide coated Heater voltage - 12,6V

Heater current - 2.95A

Maximum CW Anode voltage -5.0 kV

Maximum Instantaneous value Anode voltage-8.0 kV

Maximum CW Cathode current-1.4 A

Transconductance at Ua= 2.0 kV Ia = 350 mA -->32.5 mA/V

Capacitance Input /Output /Feed-through / -21 pF /4.4 pF/0.12 pF-Max.

Seal and Envelope Temperature - 250°C max

Temperature at Anode lead - 200°C max

Temperature at Cathode and Grid leads - 120°C max

Maximum Length -177 mm Maximum Diameter -100 mm

Weight with heat sink: 2.5 kgs

Operating Position -Any

Blower not specified in the manufacturer datasheet,see:  

* PLEASE NOTE
The so called "Specification Sheet" for the GS-35B was provided for the tubes as they were produced in the Soyus (Union-engl.) factory for the Russian military and select civil aviation customers. These tubes were produced primarily for use in UHF RADAR applications. The factory was manufacturing the tube in such a manner as to guarantee their performance under the specified conditions. The plate dissipation of 1,000 watts was a MINIMAL CONSERVATIVE rating for this tube in service above 800 MHz. Use of this tube in the spectrum occupied by the amateur bands 160 meters through 70 centimeters was never specified nor measured. You can also exceed the rated anode voltage specification of 3,000 volts to as much as 4,500 volts. The majority of users are operating their amps with anode voltages between 2,700 and 3,200 Volts. They make a mistake and the grid current overload. It is better use the maximize anode voltage.

More information? Very recommend!

You wanted 2500W HF+6m?  Click:

http://qro-parts.com/images/GS-35B/hfplus.JPG

or You wanted 6000W?

Caution should also be exercised when operating the tube with filament voltages that may go below the nominal 12.6 volts. If your line voltage drops enough to cause your filament voltage to go below this level, you should adjust the filament voltage so that it will stay at or slightly above 12.6 volts under all conditions. Low filament voltage not only contributes to rapid tube failure, it will also cause your tube to have low output. Some users claim to run the filament voltage as high as 14 volts. Unlike directly heated cathode tubes, significant loss of the oxide coating on the indirectly heated cathode can occur with low filament voltages. High filament voltage can significantly shorten the life of the tube. You may shorten the life of the tube slightly by raising the filament voltage but not nearly as much as you will shorten it running low voltage. Always provide for a method to test and adjust your filament voltage. The best way is the filament voltage stabilizer.

It is sale of brand new GS-35B 2,5kW tube. Thank you!

Delivery to U.S. via Texas storage.
Shipping cost includes heavy tube delivery from Russia to Texas. 


Questions and answers about this item

No questions or answers have been posted about this item.




00000

Place bid

Time left:
Current bid:
(Approximately ##1##)
Shipping:
Import charges:
Your max bid:
Your max bid:
By clicking Confirm bid, you commit to buy this item from the seller if you are the winning bidder.
By clicking Confirm bid, you are committing to buy this item from the seller if you are the winning bidder and have read and agree to the Global Shipping Program terms and conditions - opens in a new window or tab. Import charges previously quoted are subject to change if you increase you maximum bid amount.
Cancel
Loading...
Resume bidding, if the page does not update immediately.
Place bid
Review and confirm your bid
Bid confirmation
d
h
m
s
day
hour
hours
FREE shipping
See item description
(Approximately ##1##)
(Enter ##1## or more)
(Enter more than ##1##)
Your max bid:
Increase max bid
Place bid
Confirm bid
Increase max bid
Cancel
Change bid
Close
, you've been outbid. Don't let it get away - bid again!
, you're the highest bidder on this item. Hope you win it!
, you're the first bidder. Hope you win!
, you're currently the high bidder, but you're close to getting outbid.
, this auction is almost over and you're currently the high bidder.
, you're the high bidder, but the reserve price hasn't been met.
Please enter your bid again.
Please enter a valid number as the bid price.
Enter an amount that is equal or greater than the minimum bid required. This can be found under the bid entry box.
Maximum bids can't be lowered once they're submitted.
This seller requires the buyer to have a PayPal account to purchase this item. Get a PayPal account here .
Your bid is greater than or equal to the Buy It Now price. We recommend you purchase this item via Buy It Now. If you still wish to bid, you may do so below.
Time left:
Current bid:
(approximately ##1##)
Your maximum bid:
(approximately ##1##)
Increase your maximum bid:
By clicking 1 Click Bid, you commit to buy this item from the seller if you're the winning bidder. Learn moreabout 1-click bid - opens in a new window or tab
day
hour
min
sec
days
hours
mins
secs
(approximately ##1##)
Winning bid:
Starting bid:
Close
Congrats! The auction has ended and you're the winner.
The auction has ended, but the reserve price was not met.
Sorry, the auction has ended and you were outbid.
Good news, you're the high bidder.
Sorry, you've been outbid.
You're the high bidder, but the reserve price is not met.
Please enter a higher amount than the current bid.
Maximum bids cannot be lowered once submitted.
Please enter a valid number.