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FS: Elecraft/Inrad filters

Paul Booth
 

I have extra filters I ended up not using in my K3/S so they are for sale:


2x 7-pole 200Hz Elecraft KFL3A-200 filters, the offsets appear to be matched: asking $75 each, shipped.
7-pole Elecraft KFL3A-500 500Hz filter: asking $75 shipped
8-pole Elecraft KFL3A-1.0K 1.0KHz filter: asking $105 shipped
8-pole Inrad #718 for Elecraft, 1.0KHz filter: asking $105 shipped.

 

73, Paul, W6IBU

 

mikerodgerske5gbc
 

In case someone wanders, inrad made the 8 pole filters at least in the early days. 

73
Mike R

7!
Absolutely Awesome 

On Aug 25, 2022, at 9:02 PM, Paul Booth <wa6ibu@...> wrote:



I have extra filters I ended up not using in my K3/S so they are for sale:


2x 7-pole 200Hz Elecraft KFL3A-200 filters, the offsets appear to be matched: asking $75 each, shipped.
7-pole Elecraft KFL3A-500 500Hz filter: asking $75 shipped
8-pole Elecraft KFL3A-1.0K 1.0KHz filter: asking $105 shipped
8-pole Inrad #718 for Elecraft, 1.0KHz filter: asking $105 shipped.

 

73, Paul, W6IBU

 

Jim Brown
 

On 8/25/2022 9:42 PM, mikerodgerske5gbc via groups.io wrote:
In case someone wanders, inrad made the 8 pole filters at least in the early days.
And it's my understanding that Elecraft QCed them for low IMD.

73, Jim K9YC

Arie Kleingeld PA3A
 

Yeah,

Those were the days...


73

Arie PA3A


Op 26-8-2022 om 07:25 schreef Jim Brown:

And it's my understanding that Elecraft QCed them for low IMD.

73, Jim K9YC

Paul K6PO
 

On Thu, Aug 25, 2022 at 07:02 PM, Paul Booth wrote:
2x 7-pole 200Hz Elecraft KFL3A-200 filters, the offsets appear to be matched: asking $75 each, shipped.
Say more about these 7-pole filters! I thought Elecraft roofing filters for the K3 were either 5-pole or 8-pole. And say why they "appear" to be matched?

Thanks!

73, Paul K6PO

Paul Booth
 

Okay.  I might be wrong about the 7-pole vs. 5.  But they are matched because the offsets are matched.

 

73, Paul, W6IBU

-----Original Message-----
From: <Elecraft-K3@groups.io>
Sent: Aug 26, 2022 11:18 AM
To: <Elecraft-K3@groups.io>
Subject: Re: [Elecraft-K3] FS: Elecraft/Inrad filters

 

On Thu, Aug 25, 2022 at 07:02 PM, Paul Booth wrote:
2x 7-pole 200Hz Elecraft KFL3A-200 filters, the offsets appear to be matched: asking $75 each, shipped.
Say more about these 7-pole filters! I thought Elecraft roofing filters for the K3 were either 5-pole or 8-pole. And say why they "appear" to be matched?

Thanks!

73, Paul K6PO

 

Mel Marcus
 

It is interesting to learn that there is 7 pole filters. I had only seen 5 and 8 pole filter before

Mel NE9A

From: Elecraft-K3@groups.io <Elecraft-K3@groups.io> on behalf of Paul Booth via groups.io <wa6ibu@...>
Sent: Friday, August 26, 2022 1:26 PM
To: Elecraft-K3@groups.io <Elecraft-K3@groups.io>; Elecraft-K3@groups.io <Elecraft-K3@groups.io>
Subject: Re: [Elecraft-K3] FS: Elecraft/Inrad filters
 

Okay.  I might be wrong about the 7-pole vs. 5.  But they are matched because the offsets are matched.

 

73, Paul, W6IBU

-----Original Message-----
From: <Elecraft-K3@groups.io>
Sent: Aug 26, 2022 11:18 AM
To: <Elecraft-K3@groups.io>
Subject: Re: [Elecraft-K3] FS: Elecraft/Inrad filters

 

On Thu, Aug 25, 2022 at 07:02 PM, Paul Booth wrote:
2x 7-pole 200Hz Elecraft KFL3A-200 filters, the offsets appear to be matched: asking $75 each, shipped.
Say more about these 7-pole filters! I thought Elecraft roofing filters for the K3 were either 5-pole or 8-pole. And say why they "appear" to be matched?

Thanks!

73, Paul K6PO

 

Arie Kleingeld PA3A
 

Initially Elecraft produced the 5-poles. I still have one in my K3, the 200Hz.


Later on, 5-poles were replaced by 7-poles, just like the K3 was replaced by K3s


Arie


Op 26-8-2022 om 23:24 schreef Mel Marcus:

It is interesting to learn that there is 7 pole filters. I had only seen 5 and 8 pole filter before

Mel NE9A

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