Hi Terry,
Just a few more thoughts here...to better understand what is going on...
So C2, 4, & 5 are RF blocking caps. , blocking RF from getting to the
filament and plate trans. and the level shifter diode eliminating damage to
them. These caps. can also be termed as RF bypass caps. to Ground, so it
doesn't get into those components.
Chris Reeland
Ladd Illinois USA
Sent from my Samsung Galaxy Tab® S
On Mon, Dec 28, 2020, 5:09 PM Chris Reeland <chrisreeland@xxxxxxxxx> wrote:
> Oops....
> I hit the send button accidentally before done... while editing and adding
> info...
>
> So C6 is not a blocking capacitor here. In conjunction with R1 it switches
> the tube "on & off" at the right time to control the plate current pulses
> to the "tank".
>
> Sent from my Samsung Galaxy Tab® S
>
> On Mon, Dec 28, 2020, 4:58 PM Chris Reeland <chrisreeland@xxxxxxxxx>
> wrote:
>
>> Hi Terry again,
>>
>> After reviewing your 3 pictures/2 schematics/1 paper some more I want to
>> mention a bit more.
>>
>> On your paper, you mention C6 which is also parallel with R1 in the grid
>> leak section. You say this is a RF blocking capacitor on your paper
>> grouped with C4 &5. It is actually charging up here and the parallel
>> resistor is controlling the "leak down rate".
>>
>> Chris Reeland
>> Ladd Illinois USA
>>
>> Sent from my Samsung Galaxy Tab® S
>>
>>
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