[Amps] GI-46B Question
jeff millar
wa1hco at adelphia.net
Fri Oct 15 08:57:55 EDT 2004
Bob the advertisement says the GI-46b is a variant on the GI-7b. But
its interesting to read the description of the GI-6B, particularly the
transfer capacitance (http://nd2x.net/gi6b.html). Lets compare transfer
capacitance
GI-6B 0.25 pf wires from cathode to anode to make it oscillate
GI-7b 0.075 pf good to microwave frequencies
GI-46B 5.1 pf wow
(http://www.tubes.ru/techinfo/TransmittingPulseTubes/gi-46b.html)
So it look to me like they used the tube as a power oscillator in
UHF/microwave application and include extra transfer capacitance to
simplify the external cavity design.
I belive the statement that the tube is the last generation of small
triode and it's the most advanced design. But its not suitable for UHF
and probably not for VHF. But in an HF amplifier in Grounded Grid, it
works fine.
jeff, wa1hco
Bob Bruno - K2KI wrote:
>Are there any examples of an amp that has been built using the GI-46B tube. I see a guy on eBay selling them rather cheap I think.
>Anything that I should know about this tube that might steer me away from getting one?
>
>
>73, CUL
>
>Bob Bruno - K2KI
>k2ki at starc,org
>_______________________________________________
>Amps mailing list
>Amps at contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>
>
>
More information about the Amps
mailing list