Gs 35b tube data book

Rather it is presented to illustrate how, with a little work and ingenuity, you can build an amp using the russian gs35b tube and achieve commercial results. The so called specification sheet for the gs31bgs35b was provided for the tubes as. With the right power supply, this tube will deliver 1500w. Cathode ray tubes crt, connection diagrams, cathode ray tubes diagrams. The gs35a version of this tube which is intended for water cooling, which adds 500w to the allowable anode dissipation. There is tube data, frequently asked questions, discussion, construction ideas and details and lots of. Originally designed as power triode for uhf radar applications it has a plate dissipation of about 1500w. This amplifier was designed to run 247 key down for heavy contesting and high duty cycle wsjt modes. It is built to last and provide many years of reliable service. I used gs35 few decades ago,mainly in bc applications. The gs35b needs a minimum of 85cfm airflow, the blower fitted from new had a rating of 30. Gs35b tube sockets i build sockets and teflon chimneys for the russian gs35b. About gs35b tube amp the resource is currently listed in in a single category. Click on the picture to see the details of the construction.

When mounted vertically, it recesses the rather tall tube below chassis about 1. It shows the basic steps that i went through during construction. I decided to go with some sort of grounded grid triodes or triode. High voltage used here is too high,gs35 should not be operated with more 2500v if you wish long life tube. Amateur amplifiers have been built using this tube for every band from 160.

I get a roller inductorturn counter set from w4imd. With 800w tube works 68 months and then died completely. These same specifications can be applied to the gs7b which appears to be a commercially produced version of the gs35b. So when you get the valve it can be put into immediate use with full voltages. Amateur amplifiers have been built using this tube for every. Df6na datasheets gs23b similar to yl1050 now called 4 cx 1600 u svetlana usa. Matched pair 6s33sv 6c33cb amp triode tube nos same data 1980s new in box. I have been told the ideal voltage for the gs35b is approximately 3700vdc.

Prior to sale we run each one up heaters only on a test rig with full cooling applied for a few hours. Rf driving power from the transceiver is applied to the tubes cathode. Also, with the gs35b, being that it is an indirectly heated cathode tube design, you can use a regulated dc power supply for the filament. The gs35b is a forced air cooled triode with a maximum plate dissipation of 2kw and a maximum usable frequency of 1 ghz. Cutting this jumper and adding 15v 12 watt zener diode, d1, and the. An unused new old stock nos gs35b transmitting tube. There is tube data, frequently asked questions, discussion, construction ideas and details and lots of information for the amp builder. This link is listed in our web site directory since wednesday aug 8 2012, and till today gs35b tube amp has been followed for a total of 499 times. Tour of my homebrew gs35b hf linear amplifier plus quick demo.

About gs35b hf power amplifier the resource is currently listed in in a single category. The amplifier described here is an update of the high power linear amplifier. Rare and collectible life size statues and sculptures for sale. The tube was intended for uhf applications up to mhz and its specifications reflect that use. The gs35b is a medium mu triode that yields about db gain in amateur service. It is physically identical to the gs1b, but with minor electrical differences. Intermodulation distortion of the 3rd order minus 32 db. Gs35b hf linear amplifier having been successful with my 8 amplifier i have now decided to take things up a gear and build something even more powerful. The amp is extremely well built with a large power supply that will supply at least 4kv at 1.

These same specifications can be applied to the gs 7b not to be confused with the gi7 which appears to be an old commercially produced version of the gs 35b. Gs35b russian triode my linear amp project this page evolved from a group amp project started in early 2004. The gs35b is specd at 6kv max peak and 3 kv operating, at mhz. The system employed in this amplifier spaces the tube below the amplifier. Unfortunately, with the tubes i have i only got very limited information, and i am now looking for a full data sheet for this tube and application information if it exists. The jumper j on the board should be cut only if you need to increase the bias voltage over 39 volts. The harris originally had the filament transformer directly to the tubes heater terminals and this is supposed to be bad design. Avenger single 4 tube amp performance report duration.

The linearity of the gs31 and gs35 isnt fantastic to start with, i consider them to be. Gs35b gs35b russian triode tube,socket and teflon chimney. As a ham amplifier tube, the ratings can be pushed. It virtually eliminates the stray inductance in the grid circuit. The hvps locks out the ptt for this period of time. The gi39b triode generates and amplifies rf oscillations in pulsed operation with anode modulation. The gs 35b is a medium mu triode that yields about db gain in amateur service. Power coaxial triode the gi46b microwave triode operates as an oscillator and an amplifier in continuouswave or pulsed mode with anode modulation in the centimetric max 28cm wavelength ranges military equipment made in ussr. Many radio amateurs have used this beast as a power triode in hf linear amplifiers in typical grounded grid configuration. It is large, heavy 6 lbs, powerful, rugged and cheap. The so called specification sheet for the gs35b was provided for the tubes as they were produced in the union factory for the russian military and select civil. Gs35b 6m amplifier here are some pictures of my gs35b amplifier for 6 meters i built back in 2005. The gs35b is a russian triode that is relatively cheap and easy to get hold of. Df6na russian tubes datasheet gixx, gsxx, guxx, ylxxxx, thxx, rwxx, yhxx.

Df6na datasheets gs35b also gs7b metalceramic transmitting power triode at frequencies up to mhz. For hf and 6 meters, i would feel pretty comfortable running it at 4 kv maybe even 4. The gridground path is as low reactance as youll get. The spec sheet says the life to be expected from a gs 35b is. Please dont ask for specific details on this project. Be prepared and able to communicate in case of emergency with the largest selection at. Amateur amplifiers have been built using this tube for every band from 160 meters through 23 cm. Choosing a backup generator plus 3 legal house connection options transfer switch and more duration. Tubes for ham radio use hfvhfuhf,linear amplifier builders. W4zt socket this is my gs35b tube socket or mounting fixture design. My newest selfmade linear with one gs35b dc2wk blog. Although the gs31b has the same base as this tube, it has a much smaller anode cooler and is rated for much less power.

The russian highmu triode, a gs35b, is connected in a groundedgrid. Gs35b specifications, dimensions and data w4zt geocities. Information is from data books and from the following resources. This home brewed amplifier uses a single russian gs35b power tube and has an output power of 1. As with most russian power triodes, the heat sink on the gs35b is removable. Gs35b is a russian power triode available on various radio markets all over europe for an acceptable price. There are links to many amp projects by other hams around the world. The gs35b triode provides continuous wave generation in externalfeedback selfsustained oscillators and groundedgrid amplifiers up to 1,000 mhz. It is a direct replacement for the older discontinued gi14b, and can also be used to replace the gs1b and gs31b at slightly reduced power levels for amateur applications.

Note this is for the valve only without the copper anode cooler. These same specifications can be applied to the gs7b not to be confused with the gi7 which appears to be an old commercially produced version of the gs35b. Compared with an 3cx1500 8877 this tube is rather cheap and performing quite well. The standard fit blower must have been one of a job lot as its the same blower as fitted to most, if not all, of the linear amp uk amplifiers. The gs35b requires a minimum of 90 seconds to warm up. For example,with 2000v of ua,as broadcast transmitter,in nonstop service,gs35 survive for tree years with 1kw out,and after that power drops 800w. The gs31b triode fulfills generation and amplification functions in groundedgrid circuits in continuous wave operation in the decimetric and metric wavelength ranges.

Replica working crystal set built from a book article circa 1906. Numerous ideas that are available on the net for implementing a gs35b as a 432 mhz amplifier. Gs35b 35 russian power triode tube in box qty 1pcs. Band c1 input l c2 output cathode 160 2400pf 35uh 2000pf 80 30pf 1. This link is listed in our web site directory since tuesday apr 28 2009, and till today gs35b hf power amplifier has been followed for a total of 2468 times. There are lots of web documents and pages about amateur amplifier projects. In march 20 i start to build a big linear with linear with the russian gs35b triode tube.

The main category is amateur linear amplifiers that is about hf amplifiers for ham radio use. I made a double bottom sheet, so the cables can be under the bottom. Anyone have experience replacing 3500z triodes with russian gs35bs. The center tap of the filament secondary provides the connection to the tubes bias circuitry. The socket to the right has my teflon chimney in place. I cut a 3 inch square hole in the bottom to allow air flow from the blower. Classic transformer catalogs antique transformer and parts catalogs and specifications. I realize that the gs35bs are much more robust tubeprobably somewhat similar to 8877s s in their capabilities. My first choice was a pair of 3500zgs but a friend of mind who is helping me with the project, talked me into the gs35b. I make and sell sockets, ptfe chimneys and bias boards. The gs35b has different filament requirements so a new filament transformer and current limiter were purchased from r. Having followed the guidelines in this book closely, the anode current metering is.