April 1977 QST article
 

Hi,

Does anybody have a copy of the April 1977 QST? The article I am interested
in the the one by Howard Sartori, entitled
"solid tubes, a new life for old designs".
If somebody could scan this article, I would be glad to pay them. Thanks!

Pete KE9OA

April 1977 QST article
 

Pete KE9OA wrote:

Hi,

Does anybody have a copy of the April 1977 QST? ...

Hi, Pete, you have mail! :)

--
73 es 51 de i3hev, op. mario

Non è Radioamatore, se non gli fuma il saldatore!
- Campagna 2006 "Il Radioamatore non è uno che ascolta la radio"

it.hobby.radioamatori.moderato
http://digilander.libero.it/hamweb
http://digilander.libero.it/esperantovenezia

April 1977 QST article
 

Thank you Mario.............you are the best! I have always wanted to build
solid state tube replacements. Now, I am on my way to converting my Collins
R-388 to a solid state unit.

Pete

"i3hev, mario held" wrote in message
...
Pete KE9OA wrote:

Hi,

Does anybody have a copy of the April 1977 QST? ...

Hi, Pete, you have mail! :)

--
73 es 51 de i3hev, op. mario

Non è Radioamatore, se non gli fuma il saldatore!
- Campagna 2006 "Il Radioamatore non è uno che ascolta la radio"

it.hobby.radioamatori.moderato
http://digilander.libero.it/hamweb
http://digilander.libero.it/esperantovenezia

April 1977 QST article
 

Hey Pete

Send the other Pete a copy...

Tio Pedro

April 1977 QST article
 

Pete KE9OA Wrote:

Does anybody have a copy of the April 1977 QST?
The article I am interested in the the one by
Howard Sartori, entitled
"solid tubes, a new life for old designs".


Pete, the last time I did this, I had dual gate MosFET devices. These
days they are harder to find, so I'd probably use two JFETs in cascade to
get more or less the same effect.

I vaguelly remember the article recommends dual gate MosFETs but I will
admit, it's been a long time since I read it.


Jim Pennell
N6BIU


--

21:55 Pacific Time Zone
Jan 14 2008

International Time
05:55 UTC
15.01.2008

April 1977 QST article
 

They just went out. What you have coming are 6 JPEGs that are 730k each.

Pete

"Tio Pedro" wrote in message
...
Hey Pete

Send the other Pete a copy...

Tio Pedro

April 1977 QST article
 

I will give it a whirl. I do have some of the dual gate devices on hand. I
have to do a board layout for each of the modules, that will have a pin
field that has the same pattern as the tube base. Out of all the receivers I
have / have had, I think the
R-388 is still my favorite.

Pete

"Jim" wrote in message
...
Pete KE9OA Wrote:

Does anybody have a copy of the April 1977 QST?
The article I am interested in the the one by
Howard Sartori, entitled
"solid tubes, a new life for old designs".


Pete, the last time I did this, I had dual gate MosFET devices. These
days they are harder to find, so I'd probably use two JFETs in cascade to
get more or less the same effect.

I vaguelly remember the article recommends dual gate MosFETs but I will
admit, it's been a long time since I read it.


Jim Pennell
N6BIU


--

21:55 Pacific Time Zone
Jan 14 2008

International Time
05:55 UTC
15.01.2008

April 1977 QST article
 

Hi Pete, hi all!

Pete KE9OA wrote:

Thank you Mario.............you are the best!

well, well, now... just one among the beAsts... :)
glad to be of service!


I have always wanted to build solid state tube replacements.
Now, I am on my way to converting my Collins
R-388 to a solid state unit.

A good lot of work, I'd say - good luck! :)

Ciao!
--
73 es 51 de i3hev, op. mario

Non è Radioamatore, se non gli fuma il saldatore!
- Campagna 2006 "Il Radioamatore non è uno che ascolta la radio"

it.hobby.radioamatori.moderato
http://digilander.libero.it/hamweb
http://digilander.libero.it/esperantovenezia

April 1977 QST article
 

i3hev, mario held wrote:

Hi Pete, hi all!

Pete KE9OA wrote:

Thank you Mario.............you are the best!


well, well, now... just one among the beAsts... :)
glad to be of service!


I have always wanted to build solid state tube replacements. Now, I am
on my way to converting my Collins R-388 to a solid state unit.


A good lot of work, I'd say - good luck! :)

Ciao!

I wouldn't mind seeing that article too; in the '80s I built some common
type replacements using jfets and bipolars and installed them in an HP scope
which was the fastest I had at that time. I still have a real Fetron in my
desk drawer.

Regards,

Michael

April 1977 QST article
 

Hi Michael,

msg wrote:

I wouldn't mind seeing that article too...

if your address (minus underscores) is a valid one, you have mail :)


in the '80s I built some common type replacements using jfets and
bipolars and installed them in an HP scope.....

I think that we all may want to learn the knack: in a near future this
will probably be the only way to refurbish tube equipment... :)

Regards,
--
73 es 51 de i3hev, op. mario

Non è Radioamatore, se non gli fuma il saldatore!
- Campagna 2006 "Il Radioamatore non è uno che ascolta la radio"

it.hobby.radioamatori.moderato
http://digilander.libero.it/hamweb
http://digilander.libero.it/esperantovenezia