Amplificador HF GI7BT

Detalhes da construção de amplificador HF com valvulas GI7BT

Category:

Science & Technology

Tags:

• GI7BT
• CT1FKN
• HF
• amplifier
• GI7B

[buckaroobonsi555]

Thank You!!!! I appreciate your time and advice. I have not seen anyone get as much power out two GI7BT tubes as you have. You design must be very efficient and well tuned. I liked the layout of your amp as well. If this design is your own design you might want to make schematics up and sell the design at Ham Radio Swap meets. The only GI-7BT tube amp in HF configuration making in excess of 700-800 watt's has been a 3 tube design and a 4 tube design. Did you make those socket's for the tubes?

[joseham1964]

@buckaroobonsi555

Hi

Thank you for your comments

NO special design, I pick up that from internet, Google for EA8BNP and you can find my schematics reference.

Sockets and other material came from DL3JJ, make a search in Google from that call and you can find

Regards

[buckaroobonsi555]

What plate voltage are you running at peak output and how many amps? I am trying to figure out if 2000 Volts at 1.8 amps will be enough to power two GI-7BT tubes. I am building it for my son who is a new Ham Operator or will be once he pass's the class's at the local Red Cross Station. I have not had reliable work so I am building him an HF rig with two tubes, a 6 meter rig with one tube and a 144Mhz rig with one tube. I did a lot of electronics in school and worked on tube TV's. Nice Design!

[joseham1964]

@buckaroobonsi555

hello thank you for visit

you can see my other video post, there you can see the amplifier working

the amplifier is running with 2500V HV and 800mA plate current

as you can see there with 70W input I get 1000W out

regards

[ct1bxt]

Parabéns pelo trabalho. Está excelente. Podes muda-las para as gi-46 que ainda fica melhor.

73

Rodrigo

ct1bxt