On Mon, 03 May 2004 12:56:07 +0100, Paul Burridge
wrote:

On Sun, 02 May 2004 22:37:28 GMT, (John Crighton)
wrote:

Go on, tell us the model number, there are a lot of us
still interested in boat anchor style test equipment.

Is this unit similar to your sig gen
http://www.thevalvepage.com/testeq/avo/sg3/sg3.htm
http://www.thevalvepage.com/testeq/testeq.htm
Unfotunately the connector has been removed and a
BNC type fitted.

Not really similar to any of them, I'm afraid. Model number is CT
378B. I did recognise that old Advance E2, though. Had one of 'em
about 25 years ago. It was pretty ancient then!

I am guessing that you want to keep the original connector
on the sig gen and find a matching connector to make a
short test lead. Old Style connector to BNC.
My news group service doesn't allow me to see the group
a.b.s.e Pity. So I can not see the picture you posted.

Pity. Hopefully some kind soul will post it onto a web site for you. I
can't as I have no FTP s/ware installed at present.

---
Can't you just email it to him?

--
John Fields

On Mon, 03 May 2004 12:56:07 +0100, Paul Burridge
wrote:

On Sun, 02 May 2004 22:37:28 GMT, (John Crighton)
wrote:

Go on, tell us the model number, there are a lot of us
still interested in boat anchor style test equipment.

Is this unit similar to your sig gen
http://www.thevalvepage.com/testeq/avo/sg3/sg3.htm
http://www.thevalvepage.com/testeq/testeq.htm
Unfotunately the connector has been removed and a
BNC type fitted.

Not really similar to any of them, I'm afraid. Model number is CT
378B. I did recognise that old Advance E2, though. Had one of 'em
about 25 years ago. It was pretty ancient then!

I am guessing that you want to keep the original connector
on the sig gen and find a matching connector to make a
short test lead. Old Style connector to BNC.
My news group service doesn't allow me to see the group
a.b.s.e Pity. So I can not see the picture you posted.

Pity. Hopefully some kind soul will post it onto a web site for you. I
can't as I have no FTP s/ware installed at present.

---
Can't you just email it to him?

--
John Fields

On Sun, 02 May 2004 22:37:28 GMT, (John Crighton)
wrote:

Go on, tell us the model number, there are a lot of us
still interested in boat anchor style test equipment.

Is this unit similar to your sig gen
http://www.thevalvepage.com/testeq/avo/sg3/sg3.htm
http://www.thevalvepage.com/testeq/testeq.htm
Unfotunately the connector has been removed and a
BNC type fitted.

Not really similar to any of them, I'm afraid. Model number is CT
378B. I did recognise that old Advance E2, though. Had one of 'em
about 25 years ago. It was pretty ancient then!

I am guessing that you want to keep the original connector
on the sig gen and find a matching connector to make a
short test lead. Old Style connector to BNC.
My news group service doesn't allow me to see the group
a.b.s.e Pity. So I can not see the picture you posted.

Pity. Hopefully some kind soul will post it onto a web site for you. I
can't as I have no FTP s/ware installed at present. :-(
The output is just under an inch in diameter and is co-axial as you
might expect. The centre pin is about 1/16th" thick and doesn't
protrude beyond the outer. It's pretty unremarkable apart from its
size; much larger than one usually sees.
--

The BBC: licenced at public expense to spread lies.

On Sun, 02 May 2004 14:08:38 +0100, Paul Burridge
wrote:

On Sun, 02 May 2004 02:43:18 GMT, (John Crighton)
wrote:


Hello Paul,
what is the brand name and model number of your RF signal generator.
Can you descibe the socket to us.

Thanks John (and others).

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))

--

The BBC: licenced at public expense to spread lies.

Go on, tell us the model number, there are a lot of us
still interested in boat anchor style test equipment.

Is this unit similar to your sig gen
http://www.thevalvepage.com/testeq/avo/sg3/sg3.htm
http://www.thevalvepage.com/testeq/testeq.htm
Unfotunately the connector has been removed and a
BNC type fitted.

I am guessing that you want to keep the original connector
on the sig gen and find a matching connector to make a
short test lead. Old Style connector to BNC.
My news group service doesn't allow me to see the group
a.b.s.e Pity. So I can not see the picture you posted.

So, what are the results of connecting your ohm meter
to the RF out put connector (with the unit switched off)
and measuring the resistance on all attenuator positions.

On one of the lower frequency ranges when you connect
up your cro via a "T" piece to the sig gen with say a 75
ohm load. Does the output level jump up to double
when the load is removed?

Repeat the experiment with a 50 ohm load. If the voltage
doubles from loaded to no load, you will be laughing.
But I don't think you will be that lucky.

I am guessing it will be closer to 75 ohm output impedance.

Try different value loads and let us know how you got on.

Cheerio,
John Crighton
Sydney

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))
======================
Since Britain is part of Europe you probably mean 'anyone in continental
europe'

Just for your info ,the metric system was introduced /imposed by Napoleon
(eg more than 200 years ago)
For once he did the right thing .

Frank GM0CSZ / KN6WH

"Highland Ham" wrote:

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))
======================
Since Britain is part of Europe you probably mean 'anyone in continental
europe'

Just for your info ,the metric system was introduced /imposed by Napoleon
(eg more than 200 years ago)
For once he did the right thing .

The metric system also the law here in the UK. You can't sell stuff in
pounds and ounces or feet and inches. Miles are the last bastion of
the imperial system (on road signs), with the informal exception of
pints of beer (IIRC technically it's a "large" beer and 576ml). I
don't mind working in metric units, indeed I prefer them, but if
anyone wants to stop me asking for a pint in the pub they'll have a
fight on their hands!

Oh yes, cannabis is still sold by the fraction of an ounce as it ever
was, but I don't think selling cannabis in imperial units is any more
illegal than just selling cannabis


Tim
--
Love is a travelator.

"Tim Auton" tim.auton@uton.[groupSexWithoutTheY] wrote in message
...
"Highland Ham" wrote:

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))
======================
Since Britain is part of Europe you probably mean 'anyone in continental
europe'

Just for your info ,the metric system was introduced /imposed by Napoleon
(eg more than 200 years ago)
For once he did the right thing .

The metric system also the law here in the UK. You can't sell stuff in
pounds and ounces or feet and inches. Miles are the last bastion of
the imperial system (on road signs), with the informal exception of
pints of beer (IIRC technically it's a "large" beer and 576ml). I
don't mind working in metric units, indeed I prefer them, but if
anyone wants to stop me asking for a pint in the pub they'll have a
fight on their hands!

Oh yes, cannabis is still sold by the fraction of an ounce as it ever
was, but I don't think selling cannabis in imperial units is any more
illegal than just selling cannabis

same in NZ - pounds and ounces for cannabis. Everybody uses imperial for
height still, and newborn babies are in pounds & ounces...




Tim
--
Love is a travelator.

"Tim Auton" tim.auton@uton.[groupSexWithoutTheY] wrote in message
...
"Highland Ham" wrote:

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))
======================
Since Britain is part of Europe you probably mean 'anyone in continental
europe'

Just for your info ,the metric system was introduced /imposed by Napoleon
(eg more than 200 years ago)
For once he did the right thing .

The metric system also the law here in the UK. You can't sell stuff in
pounds and ounces or feet and inches. Miles are the last bastion of
the imperial system (on road signs), with the informal exception of
pints of beer (IIRC technically it's a "large" beer and 576ml). I
don't mind working in metric units, indeed I prefer them, but if
anyone wants to stop me asking for a pint in the pub they'll have a
fight on their hands!

Oh yes, cannabis is still sold by the fraction of an ounce as it ever
was, but I don't think selling cannabis in imperial units is any more
illegal than just selling cannabis

same in NZ - pounds and ounces for cannabis. Everybody uses imperial for
height still, and newborn babies are in pounds & ounces...




Tim
--
Love is a travelator.

"Highland Ham" wrote:

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))
======================
Since Britain is part of Europe you probably mean 'anyone in continental
europe'

Just for your info ,the metric system was introduced /imposed by Napoleon
(eg more than 200 years ago)
For once he did the right thing .

The metric system also the law here in the UK. You can't sell stuff in
pounds and ounces or feet and inches. Miles are the last bastion of
the imperial system (on road signs), with the informal exception of
pints of beer (IIRC technically it's a "large" beer and 576ml). I
don't mind working in metric units, indeed I prefer them, but if
anyone wants to stop me asking for a pint in the pub they'll have a
fight on their hands!

Oh yes, cannabis is still sold by the fraction of an ounce as it ever
was, but I don't think selling cannabis in imperial units is any more
illegal than just selling cannabis


Tim
--
Love is a travelator.

The model number ain't gonna mean a lot to anyone as this is a very
old piece of kit (1950s) that I keep mainly out of a sense of
reverence for the past. :-) It's an old ex-RAF AVO. I have posted a
picture of the socket to a.b.s.e under this same thread title...
BTW, there's a 5p coin shown for scale, but since that won't mean much
to anyone outside Britain, the outer of the socket is approx. 1" in
diameter (which won't mean much to anyone in europe but it serves them
right for adopting the metric system.:-))
======================
Since Britain is part of Europe you probably mean 'anyone in continental
europe'

Just for your info ,the metric system was introduced /imposed by Napoleon
(eg more than 200 years ago)
For once he did the right thing .

Frank GM0CSZ / KN6WH