In article , Paul Jaeger
writes:

Mike W wrote:

On Sun, 12 Oct 2003 01:22:41 GMT, "Bruce Raymond"
wrote:

Could be RF Parts?

http://www.rfparts.com/mototran.html

No, The site I referred to sells Kits of all the hard to get parts for
the Motorola RF amps, at a very good price too. Far less than Mainline
used to sell the same thing.
I've had a search on the web tonight and can't find the damn place.

http://www.communication-concepts.com/default.htm

Communications Concepts continues to advertise in printed media.
They still have advertisements in RF Design, an electronics trade
publication.

Haven't looked at Communications Concepts web site lately but a
couple years ago their reproduced Motorola application notes,
most authored by Motorola's Helge Granberg, were of less than
best quality in PDF. Still readable, though.

Len Anderson
retired (from regular hours) electronic engineer person

On Mon, 13 Oct 2003 09:27:10 -0700, Paul Jaeger
wrote:

Mike W wrote:

On Sun, 12 Oct 2003 01:22:41 GMT, "Bruce Raymond"
wrote:

Could be RF Parts?

http://www.rfparts.com/mototran.html

No, The site I referred to sells Kits of all the hard to get parts for
the Motorola RF amps, at a very good price too. Far less than Mainline
used to sell the same thing.
I've had a search on the web tonight and can't find the damn place.

http://www.communication-concepts.com/default.htm

73,
PJ

Thanks PJ, I spent about 3 hours searching last night without success.
I wish we had a resource like that in UK.
Your help appreciated and the URL bookmarked and backed-up
atb Mike W, G8NXD

Mike W wrote:

On Sun, 12 Oct 2003 01:22:41 GMT, "Bruce Raymond"
wrote:

Could be RF Parts?

http://www.rfparts.com/mototran.html

No, The site I referred to sells Kits of all the hard to get parts for
the Motorola RF amps, at a very good price too. Far less than Mainline
used to sell the same thing.
I've had a search on the web tonight and can't find the damn place.

http://www.communication-concepts.com/default.htm

73,
PJ

On Sun, 12 Oct 2003 01:22:41 GMT, "Bruce Raymond"
wrote:

Could be RF Parts?

http://www.rfparts.com/mototran.html

No, The site I referred to sells Kits of all the hard to get parts for
the Motorola RF amps, at a very good price too. Far less than Mainline
used to sell the same thing.
I've had a search on the web tonight and can't find the damn place.

Could be RF Parts?

http://www.rfparts.com/mototran.html

- Bruce Raymond/ND8I


"Mike W" wrote in message
...
On Sat, 11 Oct 2003 20:58:22 +0200, "Pawe³ Stobiñski"
wrote:

Hi all;

I plan to build an HF power amplifier, output about 80-100W, not
critical.
It might look like as those used in popular Yaesu, Kenwood or Icom end PA
stages, i.e. first stage as driver and the second as final amp.
snipped

Have you looked at Motorola's website?. There are a good number of
Application Notes there with amps from 10w to Kw's for HF to uWave
described in detail. There is also a company in US that stocks the
'hard to find' bits, and Kits, for them. Sadly I can't find the URL at
the moment.

Mike W wrote:
Have you looked at Motorola's website?. There are a good number of
Application Notes there with amps from 10w to Kw's for HF to uWave
described in detail. There is also a company in US that stocks the
'hard to find' bits, and Kits, for them. Sadly I can't find the URL at
the moment.

Thanks!

--
Pawe³ Stobiñski SQ9NRY
Republic of Poland

"Pawe³ Stobiñski" wrote in message
...
Mike W wrote:
Have you looked at Motorola's website?. There are a good number of
Application Notes there with amps from 10w to Kw's for HF to uWave
described in detail. There is also a company in US that stocks the
'hard to find' bits, and Kits, for them. Sadly I can't find the URL at
the moment.

Thanks!

--
Pawe³ Stobiñski SQ9NRY
Republic of Poland

You should start with the books and Motorola Applicaiton notes by Helge
Genberg (sk).
Some libraries may have it, or you can order from RF Parts.
http://www.rfparts.com/tranbook.html

RADIO FREQUENCY TRANSISTORS, Principles and Practical Applications
Co-authored with Norman Dye should be your bible for this project.
2nd edition • 290 pages • 1.25 lbs Part #: RFT • Price: $44.95

Adobe Acrobat copies of the Motorola Application Notes
http://www.communication-concepts.co...tion_notes.htm

w9gb

"Pawe³ Stobiñski" wrote in message
...
Mike W wrote:
Have you looked at Motorola's website?. There are a good number of
Application Notes there with amps from 10w to Kw's for HF to uWave
described in detail. There is also a company in US that stocks the
'hard to find' bits, and Kits, for them. Sadly I can't find the URL at
the moment.

Thanks!

--
Pawe³ Stobiñski SQ9NRY
Republic of Poland

You should start with the books and Motorola Applicaiton notes by Helge
Genberg (sk).
Some libraries may have it, or you can order from RF Parts.
http://www.rfparts.com/tranbook.html

RADIO FREQUENCY TRANSISTORS, Principles and Practical Applications
Co-authored with Norman Dye should be your bible for this project.
2nd edition • 290 pages • 1.25 lbs Part #: RFT • Price: $44.95

Adobe Acrobat copies of the Motorola Application Notes
http://www.communication-concepts.co...tion_notes.htm

w9gb

Mike W wrote:
Have you looked at Motorola's website?. There are a good number of
Application Notes there with amps from 10w to Kw's for HF to uWave
described in detail. There is also a company in US that stocks the
'hard to find' bits, and Kits, for them. Sadly I can't find the URL at
the moment.

Thanks!

--
Pawe³ Stobiñski SQ9NRY
Republic of Poland

On Sat, 11 Oct 2003 20:58:22 +0200, "Pawe³ Stobiñski"
wrote:

Hi all;

I plan to build an HF power amplifier, output about 80-100W, not critical.
It might look like as those used in popular Yaesu, Kenwood or Icom end PA
stages, i.e. first stage as driver and the second as final amp., both in
push-pull, transformer-separated. It should run directly with 13.8V supply.
Of course, everything based on popular transistors as MRFxxx, 2SCxxxx,
2SDxxxx, IRFxxx MOS or russian (would be the best, since there are no
problems with buying ones in my country). I've spend several evenings
searching in googles, but I've failed to find anything suitable for me.
Either I'm such a demanding person, or missed something while looking up in
endless vastness of the internet. If anyone knew a well-designed project, or
built one whenever in past, it would be welcome.

Why not just copy a suitable proprietory schematic? What's the problem
with that?
--

"Windows [n.], A thirty-two bit extension and GUI shell to a sixteen bit patch
to an eight bit operating system originally coded for a four bit
microprocessor and produced by a two bit company."