Elecraft Product Ideas

[Fred (FL)]

I know some of the "product ideas" are available in
other forms - but this is what drives me:

1.  I don't want to use MFJ products.

2.  I'm not keen about loading up my new K2 # 5422,
with too much "stuff" INSIDE that rig - I'd be very
happy to have a few outboard items too.

Some more early-morning, first cup of Java thots:

3.  200 Watt PEP (input) 6146 desk-top AMPLIFIER:
solid state devices use Si, Bo, Arsenic, dopants,
and vias - to create roadways for e's.  Vacuum tubes,
have a gaseous layer - which allows a bit of
latitude for resiliancy, "echo", springiness,
and an ability to take load and drive jolts.
They also can exhibit negative R!

Listen to a HW-32 200W PEP on SSB = clear,
sharp, powerful audio.  Listen to a 15W solid
state amp device = much weaker, a bit anemic,
a bit flat.  Ask the Russians - it is said,
many of their 90's fighter aircraft had tube
xmtrs and rcvrs.  (quite dependable they say)

Secret? = hot 12VAC filament, and evacuated
gaseous layer!  Ask the VARIAC folks!

If Elecraft could market a BACKER TUBE AMP
project- one we hams could complete as a "project" -
FCC would be happy, and we'd have our toaster-size
200W PEP input amp next to our K2's - for those
of us (I suspect MANY) hams would want to use.

The ICOM IC-706 folks are still trying to solve the
"problematic" finals in this 2006 rig.  Silicon -
does not like punishment, static, radiation,
heat, or mechanical stress, ground or lack of
ground situations, ignition noise, mobile static,
..............

4. I'd really like a few ELECRAFT-designed
kit accessories to set beside my K2 # 5422:

- outboard RF Output Level Indicator
- outboard SWR/Power Meter
- outboard 200W PEP Amplifier
- outboard 300W Tuner (coils, switches, meter)
- an Elecraft mobile MIKE & connector
- an Elecraft K2 WHITE, XXL Golf Shirt - good quality

All U.S., all Elecraft, all kit form (not shirt)

Thanks,
Fred N3CSY
...K2 reached Spectrogram, SSB alignment phase
K2 # 5422; Dimple, NB, SSB, Toroid-Guy Toroids







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[N2EY]

In a message dated 5/21/06 7:37:43 AM Eastern Daylight Time,
[hidden email] writes:


> 3.  200 Watt PEP (input) 6146 desk-top AMPLIFIER:
> solid state devices use Si, Bo, Arsenic, dopants,
> and vias - to create roadways for e's.  Vacuum tubes,
> have a gaseous layer

????

Vacuum tubes have just that - a vacuum.

- which allows a bit of
>
> latitude for resiliancy, "echo", springiness,
> and an ability to take load and drive jolts.
> They also can exhibit negative R!
>

Doesn't make any difference to the RF.



> Listen to a HW-32 200W PEP on SSB = clear,
> sharp, powerful audio.  Listen to a 15W solid
> state amp device = much weaker, a bit anemic,
> a bit flat.  

Of course it's going to be weaker - it's 7 db less power!

Ask the Russians - it is said,
>
> many of their 90's fighter aircraft had tube
> xmtrs and rcvrs.  (quite dependable they say)
>

The Soviets used tubes because of their ability
to withstand EMP - and because they did not
have the industrial capacity to make enough
advanced semiconductors.

> Secret? = hot 12VAC filament, and evacuated
> gaseous layer!  Ask the VARIAC folks!
>
>


????


If Elecraft could market a BACKER TUBE AMP
>
> project- one we hams could complete as a "project" -
> FCC would be happy, and we'd have our toaster-size
> 200W PEP input amp next to our K2's - for those
> of us (I suspect MANY) hams would want to use.
>

How much would you be willing to pay for it? Such
an amplifier would cost considerably more than a
KPA100.


> The ICOM IC-706 folks are still trying to solve the
> "problematic" finals in this 2006 rig.  


The IC-706 is a lot older than 2006. And one poor
final design does not mean a technology is better or
worse than another. There were manufactured tube
rigs that were very hard on the bottles.

Silicon -
>
> does not like punishment, static, radiation,
> heat, or mechanical stress, ground or lack of
> ground situations, ignition noise, mobile static,
> ..............
>

True. Tubes have their weak points as well.

73 de Jim, N2EY
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[Vic K2VCO]

Fred (FL) wrote:

> 3.  200 Watt PEP (input) 6146 desk-top AMPLIFIER:
> solid state devices use Si, Bo, Arsenic, dopants,
> and vias - to create roadways for e's.  Vacuum tubes,
> have a gaseous layer - which allows a bit of
> latitude for resiliancy, "echo", springiness,
> and an ability to take load and drive jolts.
> They also can exhibit negative R!

Echo?

Solid state amplifiers can be designed to 'take load and drive jolts'
just as well as tubes.  It simply requires good engineering practice.
And many solid state devices, such as tunnel and Gunn diodes exhibit
negative resistance.

> Listen to a HW-32 200W PEP on SSB = clear,
> sharp, powerful audio.  Listen to a 15W solid
> state amp device = much weaker, a bit anemic,
> a bit flat.  

Oh come on.  This isn't the audiofool reflector.  You can't be serious.

> Secret? = hot 12VAC filament, and evacuated
> gaseous layer!  Ask the VARIAC folks!
> If Elecraft could market a BACKER TUBE AMP
> project- one we hams could complete as a "project" -
> FCC would be happy, and we'd have our toaster-size
> 200W PEP input amp next to our K2's - for those
> of us (I suspect MANY) hams would want to use.

Now I *know* you aren't serious!  Happy April 1 on May 21!
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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