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David September 30th 06 02:50 AM

CFRX 6070- an easy QSL
 
On Fri, 29 Sep 2006 23:55:12 GMT, "David Eduardo"
wrote:


"dxAce" wrote in message
...


David Eduardo wrote:

"dxAce" wrote in message
...


David Frackelton Gleason, still posing as 'Eduardo', tried really,
really
hard
when he wrote:

"dxAce" wrote in message
...


"ve3..." wrote:

CFRX 6070 khz uses a Harris !kw transmitter to relay the programs
of
CFRB Toronto 1010 khz.

The website given below states that they use an Elcom-Bauer 701B-HF
transmitter.

Most of the Bauers were kits, built on site by the station engineer.
This
would indicate the transmitter is around 35 years old, and probably
failing.

Well, the article states that the transmitter was installed in 1983...

Probably used, then.


Wrong! They purchased it new.


It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and dirty"
model they built to fill the need of about 1,000 class IV stations for new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was simply
an old-technology high-level plate modulated transmitter using, if I recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.

David Eduardo September 30th 06 07:12 AM

CFRX 6070- an easy QSL
 

"David" wrote in message
...

It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and dirty"
model they built to fill the need of about 1,000 class IV stations for new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was
simply
an old-technology high-level plate modulated transmitter using, if I
recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.


I understood the B model at some point used 4-500's due to the relatively
short life of the US built 4-400 from EIMAC, and the transmitter's inability
to use the European QB4-1100 (without major work), which lasted as much as
5,000 hours more than the 4-400A.

KUPD was 500 watts all through the 60's. I do not recall the 701B having a
power cutback in the stock model... must have been a modified 701 which was
sold as a 1 kw only rig for upgrading Class IV station.



David Eduardo September 30th 06 07:17 AM

CFRX 6070- an easy QSL
 

"dxAce" wrote in message
...


David Eduardo wrote:

"dxAce" wrote in message
...


David Eduardo wrote:

"dxAce" wrote in message
...


David Frackelton Gleason, still posing as 'Eduardo', tried really,
really
hard
when he wrote:

"dxAce" wrote in message
...


"ve3..." wrote:

CFRX 6070 khz uses a Harris !kw transmitter to relay the
programs
of
CFRB Toronto 1010 khz.

The website given below states that they use an Elcom-Bauer
701B-HF
transmitter.

Most of the Bauers were kits, built on site by the station
engineer.
This
would indicate the transmitter is around 35 years old, and probably
failing.

Well, the article states that the transmitter was installed in
1983...

Probably used, then.

Wrong! They purchased it new.


It's still really old, which was my point.


No, going back through the posts one will find that you were simply
talking out
your ass.


You are such a fool. You have a total inability to read.

I said, in reference to the Bauer, that most were kits and "this would
indicate that the transmitter would be 35 years old."

For your dense mind, this means, as anyone with a tad of English would know,
that "if the transmitter was one of the kits, then it would be 35 years
old." It was later clarified that the transmitter was a later model, and
is STILL nearly a quarter century old.

You probably pick in your neighbors' garbage to see what you can fabricate
about them, too. If you had been a Roman, your specialty would have been the
reading of entrails to find hidden messages in goat's livers.



David September 30th 06 02:12 PM

CFRX 6070- an easy QSL
 
On Sat, 30 Sep 2006 06:12:31 GMT, "David Eduardo"
wrote:


"David" wrote in message
.. .

It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and dirty"
model they built to fill the need of about 1,000 class IV stations for new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was
simply
an old-technology high-level plate modulated transmitter using, if I
recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.


I understood the B model at some point used 4-500's due to the relatively
short life of the US built 4-400 from EIMAC, and the transmitter's inability
to use the European QB4-1100 (without major work), which lasted as much as
5,000 hours more than the 4-400A.

KUPD was 500 watts all through the 60's. I do not recall the 701B having a
power cutback in the stock model... must have been a modified 701 which was
sold as a 1 kw only rig for upgrading Class IV station.

I said 707. A transmitter with stock outputs of 1 KW and 0.25 KW can
easily be restrapped for 0.5 KW.

David Eduardo September 30th 06 04:30 PM

CFRX 6070- an easy QSL
 

"David" wrote in message
...
On Sat, 30 Sep 2006 06:12:31 GMT, "David Eduardo"
wrote:


"David" wrote in message
. ..

It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and
dirty"
model they built to fill the need of about 1,000 class IV stations for
new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was
simply
an old-technology high-level plate modulated transmitter using, if I
recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.


I understood the B model at some point used 4-500's due to the relatively
short life of the US built 4-400 from EIMAC, and the transmitter's
inability
to use the European QB4-1100 (without major work), which lasted as much as
5,000 hours more than the 4-400A.

KUPD was 500 watts all through the 60's. I do not recall the 701B having a
power cutback in the stock model... must have been a modified 701 which
was
sold as a 1 kw only rig for upgrading Class IV station.

I said 707. A transmitter with stock outputs of 1 KW and 0.25 KW can
easily be restrapped for 0.5 KW.


I saw a bunch of 707's, and they were designed for Class IV stations running
1 kw always, meaning they had no cutback switch. It was brought to the
market when the FCC approved 1 kw day an night for the roughly 1000 class IV
stations in the US, and originally had no cutback. Was there a model with
such?

The issue with using a higher power transmitter for lower licensed fulltime
power is that the FCC did not approve usage of such in the 60's and a
modified right was likely not type accepted (doable with paperwork, though).
A believe the rules did not allow more than 20% or 25% greater transmitter
power than the licensed power or higher power if licensed at more than one
power level.

The 701 superseded the 707, and used 4.500's. The B model was solid state in
the exciter and audio driver, only having 4 final and modulator tubes.



David Eduardo September 30th 06 04:39 PM

CFRX 6070- an easy QSL
 

"David Eduardo" wrote in message
.. .

"David" wrote in message
...
On Sat, 30 Sep 2006 06:12:31 GMT, "David Eduardo"
wrote:


"David" wrote in message
...

It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and
dirty"
model they built to fill the need of about 1,000 class IV stations for
new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was
simply
an old-technology high-level plate modulated transmitter using, if I
recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.

I understood the B model at some point used 4-500's due to the relatively
short life of the US built 4-400 from EIMAC, and the transmitter's
inability
to use the European QB4-1100 (without major work), which lasted as much
as
5,000 hours more than the 4-400A.

KUPD was 500 watts all through the 60's. I do not recall the 701B having
a
power cutback in the stock model... must have been a modified 701 which
was
sold as a 1 kw only rig for upgrading Class IV station.

I said 707. A transmitter with stock outputs of 1 KW and 0.25 KW can
easily be restrapped for 0.5 KW.


I saw a bunch of 707's, and they were designed for Class IV stations
running 1 kw always, meaning they had no cutback switch. It was brought to
the market when the FCC approved 1 kw day an night for the roughly 1000
class IV stations in the US, and originally had no cutback. Was there a
model with such?


My mistake. I called a guy who actually built a 707 (and maintained several
other Bauers as well) and he said the 707 came as a both a fixed power kit
for staitons with one level and an adjustable second power selection for
those with multiple output levels.

Here is one without the cutback... a 1 kw daytimer on 1290 that had no need
for two power levels.

http://www.oldradio.com/archives/hardware/707.htm

The issue with using a higher power transmitter for lower licensed
fulltime power is that the FCC did not approve usage of such in the 60's
and a modified right was likely not type accepted (doable with paperwork,
though). A believe the rules did not allow more than 20% or 25% greater
transmitter power than the licensed power or higher power if licensed at
more than one power level.

The 701 superseded the 707, which was built for about 10 years, and used
4-500's. The B model was solid state in the exciter and audio driver, only
having 4 final and modulator tubes.




dxAce September 30th 06 04:40 PM

CFRX 6070- an easy QSL
 


David Eduardo wrote:

"David" wrote in message
...
On Sat, 30 Sep 2006 06:12:31 GMT, "David Eduardo"
wrote:


"David" wrote in message
. ..

It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and
dirty"
model they built to fill the need of about 1,000 class IV stations for
new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was
simply
an old-technology high-level plate modulated transmitter using, if I
recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.

I understood the B model at some point used 4-500's due to the relatively
short life of the US built 4-400 from EIMAC, and the transmitter's
inability
to use the European QB4-1100 (without major work), which lasted as much as
5,000 hours more than the 4-400A.

KUPD was 500 watts all through the 60's. I do not recall the 701B having a
power cutback in the stock model... must have been a modified 701 which
was
sold as a 1 kw only rig for upgrading Class IV station.

I said 707. A transmitter with stock outputs of 1 KW and 0.25 KW can
easily be restrapped for 0.5 KW.


I saw a bunch of 707's, and they were designed for Class IV stations running
1 kw always, meaning they had no cutback switch. It was brought to the
market when the FCC approved 1 kw day an night for the roughly 1000 class IV
stations in the US, and originally had no cutback. Was there a model with
such?


The 707 was apparently designed to operate at both 1000 watts and 250 watts.

dxAce
Michigan
USA



David September 30th 06 08:48 PM

CFRX 6070- an easy QSL
 
On Sat, 30 Sep 2006 15:30:53 GMT, "David Eduardo"
wrote:


"David" wrote in message
.. .
On Sat, 30 Sep 2006 06:12:31 GMT, "David Eduardo"
wrote:


"David" wrote in message
...

It's still really old, which was my point. Bauer did not sell many
transmitters in that era. The 701B was a derivative of a "quick and
dirty"
model they built to fill the need of about 1,000 class IV stations for
new
transmitters when the FCC authorized 1 kw for them. I think they sold
something like 300 at the time, which was quite amazing. The 701B was
simply
an old-technology high-level plate modulated transmitter using, if I
recall,
glass envelope tubes... maybe the 4-500A.

KXIV and KRIZ both used the 707, in the '60s. KUPD got a couple in
the early '70s I recall. 4-400As.

I understood the B model at some point used 4-500's due to the relatively
short life of the US built 4-400 from EIMAC, and the transmitter's
inability
to use the European QB4-1100 (without major work), which lasted as much as
5,000 hours more than the 4-400A.

KUPD was 500 watts all through the 60's. I do not recall the 701B having a
power cutback in the stock model... must have been a modified 701 which
was
sold as a 1 kw only rig for upgrading Class IV station.

I said 707. A transmitter with stock outputs of 1 KW and 0.25 KW can
easily be restrapped for 0.5 KW.


I saw a bunch of 707's, and they were designed for Class IV stations running
1 kw always, meaning they had no cutback switch. It was brought to the
market when the FCC approved 1 kw day an night for the roughly 1000 class IV
stations in the US, and originally had no cutback. Was there a model with
such?

The issue with using a higher power transmitter for lower licensed fulltime
power is that the FCC did not approve usage of such in the 60's and a
modified right was likely not type accepted (doable with paperwork, though).
A believe the rules did not allow more than 20% or 25% greater transmitter
power than the licensed power or higher power if licensed at more than one
power level.

The 701 superseded the 707, and used 4.500's. The B model was solid state in
the exciter and audio driver, only having 4 final and modulator tubes.

I've seen the transmitter. I knew Frank Muter.

http://www.rwonline.com/reference-ro..._bauer_7.shtml

David Eduardo September 30th 06 10:34 PM

CFRX 6070- an easy QSL
 

"dxAce" wrote in message
...


The 707 was apparently designed to operate at both 1000 watts and 250
watts.


I ma told by an engineer who worked on several that the cutback kit was an
option. The one I linked to, a 1 kw daytimer in Texas, did not have a
cutback.



David Eduardo September 30th 06 10:36 PM

CFRX 6070- an easy QSL
 

"David" wrote in message
...
power level.

The 701 superseded the 707, and used 4.500's. The B model was solid state
in
the exciter and audio driver, only having 4 final and modulator tubes.

I've seen the transmitter. I knew Frank Muter.


This sounds like your statement that the Level Devil was never used as a
compressor.

There were 707's with the cutback, and 707's without. Our chief in LA has
worked on both (And both of us have worked with the same Bauer 5 kw at KWIZ
in Santa Ana).




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