The voltage rating on the load side doesn't have to be as high as on the
tune side, as the impedance is lower. You got all bases covered.
Joe W4AAB
> I've got a fairly wide-spaced 500 pF air variable for the tuning cap so
> no more should be needed there.
>
> For the loading side, I've gathered some "transmitting" caps of 1000 pF
> each, 5kV to 8 kV rating, to go in parallel with either a 1000 pF
> vacuum variable (with motor drive!) or another one of the 500 pF air
> variables.
>
>
> Steve WD8DAS
>
> [email protected]
> http://www.wd8das.net/
> ---------------------------------------------------------
> Radio is your best entertainment value.
> ---------------------------------------------------------
>
>
> -----Original Message-----
> From: Edward Swynar <[email protected]>
> To: Discussion of AM Radio in the Amateur Service
> <[email protected]>; [email protected];
> [email protected]
> Cc: [email protected]
> Sent: Fri, 1 May 2009 12:23 pm
> Subject: Re: [AMRadio] Filament choke
>
>
>
>
>
>
>
>
>
>
> Hi Steve,
>
> What kinda fixed padder capacitors are you placing in parallel with that
> plate tuning capacitor, as well as the plate loading cap, in the final
> pi-tank...?
>
> I'm sure you're already well aware of it, but you've gotta be REAL
> PICKY in
> these applications, as I discovered here the hard way...! Hi Hi.
>
> ~73~ Eddy VE3CUI - VE3XZ
>
>
> *************************************
>
> ----- Original Message -----
> From: <[email protected]>
> To: <[email protected]>
> Cc: <[email protected]>
> Sent: Thursday, April 30, 2009 9:36 AM
> Subject: Re: [AMRadio] Filament choke
>
>
>>
>> Here's my schematic so far for the 160m amp:
>>
>> http://www.wd8das.net/160m-GI7B.JPG
>>
>> This one won't be a as pretty as some... I'm going to build it on a
>> steel chassis that has been used by others for at least four other
>> projects and is literally swiss-cheesed with useful holes. (more
> holes
>> than steel maybe)
>>
>> The front panel is 1/8" aluminum sheet also somewhat holey, but
>> smoothed and now painted nicely with textured gray. The cabinet looks
>> like it came from a later-vintage Meissner Signal Shifter with
> liftable
>> lid and plenty of ventilation holes.
>>
>> Steve WD8DAS
>>
>> [email protected]
>> http://www.wd8das.net/
>> ---------------------------------------------------------
>> Radio is your best entertainment value.
>> ---------------------------------------------------------
>>
>>
>>
>>
>> ______________________________________________________________
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>
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