Elecraft

K2 main encoder wanted

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Bob G3PJT

K2 main encoder wanted

Hi

I need a main tuning encoder of a K2. The Elecraft part number is
E640003 and on the back the makers number is EC202C025A-2TD

If you have one spare please mail me off list

73 and thanks

Bob G3PJT

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Don Wilhelm

Re: K2 main encoder wanted

Bob,

You can get the new encoder from Elecraft - it is p/n K2ENCASY.
It contains the new encoder, a new knob and several other components as
well as the encoder board.

If this is your only option, be aware that the spacing between the new
encoder board and the back of the Control Board is critical.
You must flush trim the leads on the Control Board where it can contact
the encoder board and also flush trim the encoder board after it is
assembled. Flush trimming means really flush - diagonal cutters are not
sufficient.

You will also have to enlarge the hole for the encoder in the Front
Panel metalwork a bit. A knife run around the hole a couple times will
allow the encoder shaft adequate clearance.

You might want to put a piece of "fish paper" between the encoder board
and the Control Board.

73,
Don W3FPR

On 3/22/2017 5:59 PM, Bob G3PJT wrote:

> Hi
>
> I need a main tuning encoder of a K2. The Elecraft part number is
> E640003 and on the back the makers number is EC202C025A-2TD
>
> If you have one spare please mail me off list
>
> 73 and thanks
>
> Bob G3PJT

Elecraft mailing list

Re: K2 main encoder wanted

In reply to this post by Bob G3PJT

Here is some info
http://www.wm5r.org/k2-100/encoders.shtml

From: Bob G3PJT <[hidden email]>
To: "[hidden email]" <[hidden email]>
Sent: Wednesday, March 22, 2017 6:06 PM
Subject: [Elecraft] K2 main encoder wanted

Hi

I need a main tuning encoder of a K2. The Elecraft part number is
E640003 and on the back the makers number is EC202C025A-2TD

If you have one spare please mail me off list

73 and thanks

Bob G3PJT

[hidden email]

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Elecraft mailing list

Re: K2 main encoder wanted

In reply to this post by Don Wilhelm

I used some Kapton tape on the back of the encoder board

From: Don Wilhelm <[hidden email]>
To: Bob G3PJT <[hidden email]>; "[hidden email]" <[hidden email]>
Sent: Wednesday, March 22, 2017 6:20 PM
Subject: Re: [Elecraft] K2 main encoder wanted

Bob,

You can get the new encoder from Elecraft - it is p/n K2ENCASY.
It contains the new encoder, a new knob and several other components as
well as the encoder board.

If this is your only option, be aware that the spacing between the new
encoder board and the back of the Control Board is critical.
You must flush trim the leads on the Control Board where it can contact
the encoder board and also flush trim the encoder board after it is
assembled. Flush trimming means really flush - diagonal cutters are not
sufficient.

You will also have to enlarge the hole for the encoder in the Front
Panel metalwork a bit. A knife run around the hole a couple times will
allow the encoder shaft adequate clearance.

You might want to put a piece of "fish paper" between the encoder board
and the Control Board.

73,
Don W3FPR

On 3/22/2017 5:59 PM, Bob G3PJT wrote:

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Bob G3PJT

Re: K2 main encoder wanted

In reply to this post by Don Wilhelm

Hi Don

Thanks for the reply. I did know about the new encoder kit but the
problem is that of its cost when it gets here.

Elecraft quote 124USD for the kit, that's £100 here which then gets VAT
at 20% and a local handling charge - say a total of £130-140 and as well
if I read things correctly I will need to get a new knob.

So you can see that my problem is that unless I can get a cheaper
replacement I might as well sell the K2/100 either in bits for spares or
at a discount.

The encoder does work fine but it has suffered a knock which has made it
slightly stiff to turn, i.e it wont 'spin', but it is useable.

So thanks for the thoughts

73 Bob G3PJT

On 22/03/2017 22:17, Don Wilhelm wrote:

> Bob,
>
> You can get the new encoder from Elecraft - it is p/n K2ENCASY.
> It contains the new encoder, a new knob and several other components
> as well as the encoder board.
>
> If this is your only option, be aware that the spacing between the new
> encoder board and the back of the Control Board is critical.
> You must flush trim the leads on the Control Board where it can
> contact the encoder board and also flush trim the encoder board after
> it is assembled. Flush trimming means really flush - diagonal cutters
> are not sufficient.
>
> You will also have to enlarge the hole for the encoder in the Front
> Panel metalwork a bit. A knife run around the hole a couple times
> will allow the encoder shaft adequate clearance.
>
> You might want to put a piece of "fish paper" between the encoder
> board and the Control Board.
>
> 73,
> Don W3FPR
>
> On 3/22/2017 5:59 PM, Bob G3PJT wrote:
>> Hi
>>
>> I need a main tuning encoder of a K2. The Elecraft part number is
>> E640003 and on the back the makers number is EC202C025A-2TD
>>
>> If you have one spare please mail me off list
>>
>> 73 and thanks
>>
>> Bob G3PJT
>

Vic Rosenthal

Re: K2 main encoder wanted

Are you certain that a bit of fiber from the felt washer hasn't worked
its way between the shaft and the bushing? That is a known problem.

73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/

On 23 Mar 2017 11:41, Bob G3PJT wrote:

> Hi Don
>
> Thanks for the reply. I did know about the new encoder kit but the
> problem is that of its cost when it gets here.
>
> Elecraft quote 124USD for the kit, that's £100 here which then gets
> VAT at 20% and a local handling charge - say a total of £130-140 and
> as well if I read things correctly I will need to get a new knob.
>
> So you can see that my problem is that unless I can get a cheaper
> replacement I might as well sell the K2/100 either in bits for spares
> or at a discount.
>
> The encoder does work fine but it has suffered a knock which has made
> it slightly stiff to turn, i.e it wont 'spin', but it is useable.
>
> So thanks for the thoughts
>
> 73 Bob G3PJT
>
>
>
>

Bob G3PJT

Re: K2 main encoder wanted

Yes the shaft is very slightly bent

73 Bob G3PJT

On 23/03/2017 09:51, Vic Rosenthal 4X6GP wrote:

> Are you certain that a bit of fiber from the felt washer hasn't worked
> its way between the shaft and the bushing? That is a known problem.
> 73,
> Vic, 4X6GP
> Rehovot, Israel
> Formerly K2VCO
> http://www.qsl.net/k2vco/
> On 23 Mar 2017 11:41, Bob G3PJT wrote:
>> Hi Don
>>
>> Thanks for the reply. I did know about the new encoder kit but the
>> problem is that of its cost when it gets here.
>>
>> Elecraft quote 124USD for the kit, that's £100 here which then gets
>> VAT at 20% and a local handling charge - say a total of £130-140 and
>> as well if I read things correctly I will need to get a new knob.
>>
>> So you can see that my problem is that unless I can get a cheaper
>> replacement I might as well sell the K2/100 either in bits for spares
>> or at a discount.
>>
>> The encoder does work fine but it has suffered a knock which has made
>> it slightly stiff to turn, i.e it wont 'spin', but it is useable.
>>
>> So thanks for the thoughts
>>
>> 73 Bob G3PJT
>>
>>
>>
>>
>

Guy Olinger K2AV

Re: K2 main encoder wanted

If you can see the bend, very slightly file the "off" side of the shaft and
use aluminum foil to shim the other side of the shaft at the end. This may
relieve the drag.

73, Guy K2AV

On Thu, Mar 23, 2017 at 6:00 AM Bob G3PJT <[hidden email]> wrote:

> Yes the shaft is very slightly bent
>
> 73 Bob G3PJT
>
>
> On 23/03/2017 09:51, Vic Rosenthal 4X6GP wrote:
> > Are you certain that a bit of fiber from the felt washer hasn't worked
> > its way between the shaft and the bushing? That is a known problem.
> > 73,
> > Vic, 4X6GP
> > Rehovot, Israel
> > Formerly K2VCO
> > http://www.qsl.net/k2vco/
> > On 23 Mar 2017 11:41, Bob G3PJT wrote:
> >> Hi Don
> >>
> >> Thanks for the reply. I did know about the new encoder kit but the
> >> problem is that of its cost when it gets here.
> >>
> >> Elecraft quote 124USD for the kit, that's £100 here which then gets
> >> VAT at 20% and a local handling charge - say a total of £130-140 and
> >> as well if I read things correctly I will need to get a new knob.
> >>
> >> So you can see that my problem is that unless I can get a cheaper
> >> replacement I might as well sell the K2/100 either in bits for spares
> >> or at a discount.
> >>
> >> The encoder does work fine but it has suffered a knock which has made
> >> it slightly stiff to turn, i.e it wont 'spin', but it is useable.
> >>
> >> So thanks for the thoughts
> >>
> >> 73 Bob G3PJT
> >>
> >>
> >>
> >>
> >
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

--
Sent via Gmail Mobile on my iPhone
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Bob G3PJT

Re: K2 main encoder wanted

Thanks Guy
I am going to get the encoder out from the front panel and then see what I can do to improve things.
73 Bob

Sent by Ipad

> On 23 Mar 2017, at 11:52, Guy Olinger K2AV <[hidden email]> wrote:
>
> If you can see the bend, very slightly file the "off" side of the shaft and use aluminum foil to shim the other side of the shaft at the end. This may relieve the drag.
>
> 73, Guy K2AV
>
>> On Thu, Mar 23, 2017 at 6:00 AM Bob G3PJT <[hidden email]> wrote:
>> Yes the shaft is very slightly bent
>>
>> 73 Bob G3PJT
>>
>>
>> On 23/03/2017 09:51, Vic Rosenthal 4X6GP wrote:
>> > Are you certain that a bit of fiber from the felt washer hasn't worked
>> > its way between the shaft and the bushing? That is a known problem.
>> > 73,
>> > Vic, 4X6GP
>> > Rehovot, Israel
>> > Formerly K2VCO
>> > http://www.qsl.net/k2vco/
>> > On 23 Mar 2017 11:41, Bob G3PJT wrote:
>> >> Hi Don
>> >>
>> >> Thanks for the reply. I did know about the new encoder kit but the
>> >> problem is that of its cost when it gets here.
>> >>
>> >> Elecraft quote 124USD for the kit, that's £100 here which then gets
>> >> VAT at 20% and a local handling charge - say a total of £130-140 and
>> >> as well if I read things correctly I will need to get a new knob.
>> >>
>> >> So you can see that my problem is that unless I can get a cheaper
>> >> replacement I might as well sell the K2/100 either in bits for spares
>> >> or at a discount.
>> >>
>> >> The encoder does work fine but it has suffered a knock which has made
>> >> it slightly stiff to turn, i.e it wont 'spin', but it is useable.
>> >>
>> >> So thanks for the thoughts
>> >>
>> >> 73 Bob G3PJT
>> >>
>> >>
>> >>
>> >>
>> >
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
> --
> Sent via Gmail Mobile on my iPhone

Elecraft mailing list

Re: K2 main encoder wanted

In reply to this post by Bob G3PJT

I really haven't looked at the encoder format they are using but if you can figure it out than you may find an alternate encoder.
The Elecraft one may be pricey because it's a 100 (25 I believe in reality) pulse per rev but there are a number of them that are 34,64, etc that can typically be had for much less.

From: Bob G3PJT <[hidden email]>
To: Vic Rosenthal 4X6GP <[hidden email]>; Elecraft Reflector <[hidden email]>
Sent: Thursday, March 23, 2017 6:02 AM
Subject: Re: [Elecraft] K2 main encoder wanted

Yes the shaft is very slightly bent

73 Bob G3PJT

On 23/03/2017 09:51, Vic Rosenthal 4X6GP wrote:

Doug Person-4

Re: K2 main encoder wanted

In reply to this post by Elecraft mailing list

Note that DigiKey no longer carries the encoders mentioned in this
article. Neither could I even find the manufacturer listed in their
directory of manufacturers. I also could not find anyone who carries
them with a Google search. Perhaps others will have better luck.

Doug -- K0DXV

On 3/22/2017 6:26 PM, Harry Yingst via Elecraft wrote:

> Here is some info
> http://www.wm5r.org/k2-100/encoders.shtml
>
>
>
>
> From: Bob G3PJT <[hidden email]>
> To: "[hidden email]" <[hidden email]>
> Sent: Wednesday, March 22, 2017 6:06 PM
> Subject: [Elecraft] K2 main encoder wanted
>
> Hi
>
> I need a main tuning encoder of a K2. The Elecraft part number is
> E640003 and on the back the makers number is EC202C025A-2TD
>
> If you have one spare please mail me off list
>
> 73 and thanks
>
> Bob G3PJT
>
> [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Don Wilhelm

Re: K2 main encoder wanted

That is the reason Elecraft changed to the new encoders - unobtainium!

73,
Don W3FPR

On 3/23/2017 3:16 PM, Doug Person wrote:

> Note that DigiKey no longer carries the encoders mentioned in this
> article. Neither could I even find the manufacturer listed in their
> directory of manufacturers. I also could not find anyone who carries
> them with a Google search. Perhaps others will have better luck.
>
> Doug -- K0DXV
>
>
> On 3/22/2017 6:26 PM, Harry Yingst via Elecraft wrote:
>> Here is some info
>> http://www.wm5r.org/k2-100/encoders.shtml
>>

Bob G3PJT

Re: K2 main encoder wanted

In reply to this post by Bob G3PJT

Hi everyone

I have managed to get the encoder turning reasonable freely. I put a
very small amout of WD40 on the shaft where it enters the housing bush.

And then did as Don suggested repeatedly and firmly pushed the knob up
at the low point. After quite a lot of pushing it began to loosen up a lot.

So I feel I have a working encoder again and am going to use it for a
while and hopefully I won't need to replace it.

I was pretty concerned that pushing it back would damage it further but
it works OK

73 and many thanks for all the suggestions

Bob G3PJT

On 23/03/2017 13:24, Bob G3PJT wrote:

> Thanks Guy
> I am going to get the encoder out from the front panel and then see
> what I can do to improve things.
> 73 Bob
>
>
> Sent by Ipad
>
>
> On 23 Mar 2017, at 11:52, Guy Olinger K2AV <[hidden email]
> <mailto:[hidden email]>> wrote:
>
>> If you can see the bend, very slightly file the "off" side of the
>> shaft and use aluminum foil to shim the other side of the shaft at
>> the end. This may relieve the drag.
>>
>> 73, Guy K2AV
>>
>> On Thu, Mar 23, 2017 at 6:00 AM Bob G3PJT <[hidden email]
>> <mailto:[hidden email]>> wrote:
>>
>> Yes the shaft is very slightly bent
>>
>> 73 Bob G3PJT
>>
>>
>> On 23/03/2017 09:51, Vic Rosenthal 4X6GP wrote:
>> > Are you certain that a bit of fiber from the felt washer hasn't
>> worked
>> > its way between the shaft and the bushing? That is a known problem.
>> > 73,
>> > Vic, 4X6GP
>> > Rehovot, Israel
>> > Formerly K2VCO
>> > http://www.qsl.net/k2vco/
>> > On 23 Mar 2017 11:41, Bob G3PJT wrote:
>> >> Hi Don
>> >>
>> >> Thanks for the reply. I did know about the new encoder kit but the
>> >> problem is that of its cost when it gets here.
>> >>
>> >> Elecraft quote 124USD for the kit, that's £100 here which then
>> gets
>> >> VAT at 20% and a local handling charge - say a total of
>> £130-140 and
>> >> as well if I read things correctly I will need to get a new knob.
>> >>
>> >> So you can see that my problem is that unless I can get a cheaper
>> >> replacement I might as well sell the K2/100 either in bits for
>> spares
>> >> or at a discount.
>> >>
>> >> The encoder does work fine but it has suffered a knock which
>> has made
>> >> it slightly stiff to turn, i.e it wont 'spin', but it is useable.
>> >>
>> >> So thanks for the thoughts
>> >>
>> >> 73 Bob G3PJT
>> >>
>> >>
>> >>
>> >>
>> >
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>> <mailto:[hidden email]>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email] <mailto:[hidden email]>
>>
>> --
>> Sent via Gmail Mobile on my iPhone

David Woolley (E.L)

Re: K2 main encoder wanted

WD40 is a preservative, not a lubricant. It will act as a penetrating
oil, to free seized parts, but for a longer term solution you want to
look at sewing machine or hair clipper oil.

On 25/03/17 20:57, Bob G3PJT wrote:
>
> I have managed to get the encoder turning reasonable freely. I put a
> very small amout of WD40 on the shaft where it enters the housing bush.
>

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ae5ka

Re: K2 main encoder wanted

WD-40 is a penetrating and moisture displacing oil, but over time gets
gummy so is not a reliable long-term lubricant.

Chip
AE5KA

On Sun, Mar 26, 2017 at 5:34 AM, David Woolley <[hidden email]>
wrote:

> WD40 is a preservative, not a lubricant. It will act as a penetrating
> oil, to free seized parts, but for a longer term solution you want to look
> at sewing machine or hair clipper oil.
>
> On 25/03/17 20:57, Bob G3PJT wrote:
>
>>
>> I have managed to get the encoder turning reasonable freely. I put a
>> very small amout of WD40 on the shaft where it enters the housing bush.
>>
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

Elecraft mailing list

Re: K2 main encoder wanted

In reply to this post by David Woolley (E.L)

I would suggest Break-Free CLP, It works great and has a lot of uses.

It works quite well and last a long time.

From: David Woolley <[hidden email]>
To: [hidden email]
Sent: Sunday, March 26, 2017 5:37 AM
Subject: Re: [Elecraft] K2 main encoder wanted

WD40 is a preservative, not a lubricant. It will act as a penetrating
oil, to free seized parts, but for a longer term solution you want to
look at sewing machine or hair clipper oil.

On 25/03/17 20:57, Bob G3PJT wrote:
>
> I have managed to get the encoder turning reasonable freely. I put a
> very small amout of WD40 on the shaft where it enters the housing bush.
>

______________________________________________________________
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