[Amps] Henry 2K

[R.Measures]

They are in series since they have only one wire in common.  If they 
had two wires in common,  they would be in parallel.  However the 
CT-return allows one filament to light if the other filament is open or 
if the other tube is removed.  cheerz, Gene

On Jan 2, 2005, at 8:21 AM, Gene Bigham wrote:

> Well now, let's look more carefully here.  Filament transformer is 
> center
> tapped, where does the CT go?  In the middle of the two tube filaments 
> is a
> choke labeled L11 which goes to #4 on a connector and a R1 which can be
> shorted out by relay contact on RY1. Then in series is a parallel D1 
> R2 and
> c36 to a f1(fuse) which connects to #5  on a connector.  Son of a gun
> connector point #4 goes to center tap on the filament transformer.  
> Thanks
> Rich, guess the filaments are not series after all!
>
> ----- Original Message -----
> From: "R. Measures" <r at somis.org>
> To: "Gene Bigham" <jbigham2 at kc.rr.com>
> Cc: <amps at contesting.com>
> Sent: Sunday, January 02, 2005 9:21 AM
> Subject: Re: [Amps] Henry 2K
>
>
>>
>> On Jan 2, 2005, at 5:45 AM, Gene Bigham wrote:
>>
>>> I own a 2K Classic X and a quick check of my schematic shows the
>>> filaments are series, if one is out, both will be out.
>>> Gene KB0GU
>> Is there a RFC between the filaments' mid-point and the neg. HV /
>> filament xfmr CT?
>>> _______________________________________________
>>> Amps mailing list
>>> Amps at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>
>> Richard L. Measures, AG6K, 805.386.3734.  www.somis.org
>>
>
>
>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org