K2 SSB option's RFC1/RFC2 mounting orientation

[Mark Petrovic]

Hi.  As I approach the final steps pertaining to toroids and chokes in
assembling the SSB option for the K2, I am reading older messages in the
mail archives about RFC1 and/or RFC2 shorting to the adjacent crystal
cans.  The manual doesn't say, but are RFC1/RFC2 to be installed
vertically?  The outline on the bottom of the board suggests they are
mounted flat, but i wanted to get some feedback before proceeding.  A flat
mount looks pretty tight, while a vertical mount looks less so.

Thanks.
Mark
AE6RT

--
Mark
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[iw2noy]

Hello,

speaking about the KSB2, for what i can remember, there a 4 toroid and
are all vertical.

73's de IW2NOY Graziano


Il 16/04/2018 16:16, Mark Petrovic ha scritto:

> Hi.  As I approach the final steps pertaining to toroids and chokes in
> assembling the SSB option for the K2, I am reading older messages in the
> mail archives about RFC1 and/or RFC2 shorting to the adjacent crystal
> cans.  The manual doesn't say, but are RFC1/RFC2 to be installed
> vertically?  The outline on the bottom of the board suggests they are
> mounted flat, but i wanted to get some feedback before proceeding.  A flat
> mount looks pretty tight, while a vertical mount looks less so.
>
> Thanks.
> Mark
> AE6RT
>

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[Don Wilhelm]

Mark,

Mount them vertically on top of the board.  If you mount them on the
bottom, you will have trouble trimming the leads for one thing.
When snugging the wires down, tighten the one where the tinned wire lead
comes closest to the edge of the crystal case so it can't make contact.

If you scraped the wire insulation while winding the toroid, rewind it.
That was the problem in those old posts - scraped enamel insulation.

73,
Don W3FPR

On 4/16/2018 10:16 AM, Mark Petrovic wrote:

> Hi.  As I approach the final steps pertaining to toroids and chokes in
> assembling the SSB option for the K2, I am reading older messages in the
> mail archives about RFC1 and/or RFC2 shorting to the adjacent crystal
> cans.  The manual doesn't say, but are RFC1/RFC2 to be installed
> vertically?  The outline on the bottom of the board suggests they are
> mounted flat, but i wanted to get some feedback before proceeding.  A flat
> mount looks pretty tight, while a vertical mount looks less so.
>
> Thanks.
> Mark
> AE6RT
>

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[ke9uw]

Vertical. I didn't look at mine, and it's been awhile, but the pictures I have show them vertical. The manual also states that even though the outlines are on the bottom of the board, you mount the chokes on the top of the board.

Chuck Hawley
 [hidden email]

 Amateur Radio, KE9UW
 aka Jack, BMW Motorcycles
________________________________________
From: [hidden email] [[hidden email]] on behalf of Mark Petrovic [[hidden email]]
Sent: Monday, April 16, 2018 9:16 AM
To: [hidden email]
Subject: [Elecraft] K2 SSB option's RFC1/RFC2 mounting orientation

Hi.  As I approach the final steps pertaining to toroids and chokes in
assembling the SSB option for the K2, I am reading older messages in the
mail archives about RFC1 and/or RFC2 shorting to the adjacent crystal
cans.  The manual doesn't say, but are RFC1/RFC2 to be installed
vertically?  The outline on the bottom of the board suggests they are
mounted flat, but i wanted to get some feedback before proceeding.  A flat
mount looks pretty tight, while a vertical mount looks less so.

Thanks.
Mark
AE6RT

--
Mark
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______________________________________________________________
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