Topics

Relays


Colin Ranson
 

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 


John Quarmby
 

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY
On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avast.com


Colin Ranson
 

Hi John,

 

Its 26v, not 12v – which is a bore – but useable of course..... looking again I can just make out a ‘6’  -  so maybe 316 ? I also have a 300 - 11870 – 52 with two coils,  which uses BNCs, but all one side.   Virtually same size body as mystery N type one but 5mm longer body.

 

I think you worked  OK1VVT after me on Tuesday ?  Thanks for the heads up.

 

Don’t think I’ve seen a 360 series relay in the flesh as it were.

 

73’s

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 

From: John Quarmby via groups.io
Sent: 11 September 2020 22:04
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Relays

 

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY

On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 

 

Virus-free. www.avast.com

 


Paul G8AQA
 

Hi John,

I was wondering if your Amphenol catalogue would reveal any info on 300-10578 26V TNC or 328-11005-3 26V Transfer N type.

Any rating or frequency info would be appreciated.

73
Paul G8AQA

On 11/09/2020 22:04, John Quarmby via groups.io wrote:

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY
On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avast.com


Paul G8AQA
 

BTW the 300-10578 is also transfer.

Paul

On 11/09/2020 22:04, John Quarmby via groups.io wrote:

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY
On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avast.com


John Quarmby
 

Hi Paul,

All the 300 series relays with TNC connectors in the catalogue have numbers of the form 300-11760 and don't include any transfer types. They are rated at 100W to 1.5GHz.

The 328-11005-3 is listed:

Insertion loss 0.1dB to 500MHz, 0.25dB to 2.5GHz
RF Power 100W to 500MHz, 50W to 2.5GHz
Switching time 15mS operate 10mS release
Operating voltage range 19-32V, coil resistance 140 ohms
Frequency        VSWR        Isolation
60MHz              1.03            56dB
100MHz            1.04            54dB
200MHz            1.05            50dB
400MHz            1.10            42dB
700MHz            1.15            34dB
1.0GHz              1.15            30dB
2.0GHz              1.20            26dB
2.5GHz              1.30            22dB

73

John G3XDY

On 12/09/2020 17:18, PAUL NICKALLS via groups.io wrote:
BTW the 300-10578 is also transfer.

Paul

On 11/09/2020 22:04, John Quarmby via groups.io wrote:

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY
On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avast.com


Colin Ranson
 

Hi John,

 

Here’s another !  hope this is not boring you.

 

I have a TNC’d Amphenol transfer relay...at least it seems to be, only number visible is 01122. Three TNC sockets across main body one side (not in line, but middle one central) and one on other side that is in the middle and directly opposite. Its 26v.   The main body is as large as the N type 316-10744-3 variety.  Any info please.

 

Thanks, I’ll shut up after this.

 

Colin de ‘LBS

 

Sent from Mail for Windows 10

 

From: John Quarmby via groups.io
Sent: 12 September 2020 18:55
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Relays

 

Hi Paul,

All the 300 series relays with TNC connectors in the catalogue have numbers of the form 300-11760 and don't include any transfer types. They are rated at 100W to 1.5GHz.

The 328-11005-3 is listed:

Insertion loss 0.1dB to 500MHz, 0.25dB to 2.5GHz
RF Power 100W to 500MHz, 50W to 2.5GHz
Switching time 15mS operate 10mS release
Operating voltage range 19-32V, coil resistance 140 ohms
Frequency        VSWR        Isolation
60MHz              1.03            56dB
100MHz            1.04            54dB
200MHz            1.05            50dB
400MHz            1.10            42dB
700MHz            1.15            34dB
1.0GHz              1.15            30dB
2.0GHz              1.20            26dB
2.5GHz              1.30            22dB

73

John G3XDY

On 12/09/2020 17:18, PAUL NICKALLS via groups.io wrote:

BTW the 300-10578 is also transfer.

Paul

On 11/09/2020 22:04, John Quarmby via groups.io wrote:

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY

On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 

 

Virus-free. www.avast.com

 

 


John Quarmby
 

That number doesn't fit with the normal Amphenol conventions. All their numbering is along the lines of a 3 digit series number followed by a 5 digit model number and a single or two digit coil voltage number. All the model numbers start with a 1 as the first digit of the 5 digit group.

73

John G3XDY

On 12/09/2020 18:32, Colin Ranson wrote:

Hi John,

 

Here’s another !  hope this is not boring you.

 

I have a TNC’d Amphenol transfer relay...at least it seems to be, only number visible is 01122. Three TNC sockets across main body one side (not in line, but middle one central) and one on other side that is in the middle and directly opposite. Its 26v.   The main body is as large as the N type 316-10744-3 variety.  Any info please.

 

Thanks, I’ll shut up after this.

 

Colin de ‘LBS

 

Sent from Mail for Windows 10

 

From: John Quarmby via groups.io
Sent: 12 September 2020 18:55
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Relays

 

Hi Paul,

All the 300 series relays with TNC connectors in the catalogue have numbers of the form 300-11760 and don't include any transfer types. They are rated at 100W to 1.5GHz.

The 328-11005-3 is listed:

Insertion loss 0.1dB to 500MHz, 0.25dB to 2.5GHz
RF Power 100W to 500MHz, 50W to 2.5GHz
Switching time 15mS operate 10mS release
Operating voltage range 19-32V, coil resistance 140 ohms
Frequency        VSWR        Isolation
60MHz              1.03            56dB
100MHz            1.04            54dB
200MHz            1.05            50dB
400MHz            1.10            42dB
700MHz            1.15            34dB
1.0GHz              1.15            30dB
2.0GHz              1.20            26dB
2.5GHz              1.30            22dB

73

John G3XDY

On 12/09/2020 17:18, PAUL NICKALLS via groups.io wrote:

BTW the 300-10578 is also transfer.

Paul

On 11/09/2020 22:04, John Quarmby via groups.io wrote:

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY

On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 

 

Virus-free. www.avast.com

 

 


Paul G8AQA
 

John,

Thanks very much for the info.  I saw the 328-110053 on ebay and the powers quoted were much higher. HF 650W, 430MHz 300W, 2.4GHz150W.  I was not sure about the info from ebay.  I wonder if it is the rating of the connectors or Amphenol are being conservative.

It looks like I will have to be careful.  I guess I could push things a bit on SSB.

Regards,
Paul.

On 12/09/2020 18:55, John Quarmby via groups.io wrote:

Hi Paul,

All the 300 series relays with TNC connectors in the catalogue have numbers of the form 300-11760 and don't include any transfer types. They are rated at 100W to 1.5GHz.

The 328-11005-3 is listed:

Insertion loss 0.1dB to 500MHz, 0.25dB to 2.5GHz
RF Power 100W to 500MHz, 50W to 2.5GHz
Switching time 15mS operate 10mS release
Operating voltage range 19-32V, coil resistance 140 ohms
Frequency        VSWR        Isolation
60MHz              1.03            56dB
100MHz            1.04            54dB
200MHz            1.05            50dB
400MHz            1.10            42dB
700MHz            1.15            34dB
1.0GHz              1.15            30dB
2.0GHz              1.20            26dB
2.5GHz              1.30            22dB

73

John G3XDY

On 12/09/2020 17:18, PAUL NICKALLS via groups.io wrote:
BTW the 300-10578 is also transfer.

Paul

On 11/09/2020 22:04, John Quarmby via groups.io wrote:

Hi Colin,

In the depths of my old Amphenol catalogue I can find a 317-11092-3, but it doesn't really tie up well as that relay has BNC connectors and 75 ohm resistor terminations for contacts in the off state. It has got the correct connector configuration with two on one side and common on the other. It is rated at 100W to 500MHz. Maybe its a special of some sort.

Amphenol 360 series relays can be easily modified (screwdriver job) to swap the center connector from one side of the relay to the other and are rated to 500W at 500MHz with 60dB isolation at 400MHz, so look out for one of those for 2m or 70cm preamps.

73

John G3XDY
On 11/09/2020 17:17, Colin Ranson wrote:

Et al,

 

Further to the relay thread – it got me thinking.  Deep in the depths of my junk shed I found a long forgotten diecast box containing an aborted 70cm mast head pre-amp project from about 1980.  In it I discovered a 12v Amphenol relay part 554-6542, (the 42 is a bit indistinct but think it’s right) N connectors with the common at 180 degrees to NO/NC.  Now this relay is not very big, the main body is 13 x 13 x 50mm and the N socket bodies are ‘narrowed’ to fit.  Another partially visible number seems like 11092-3. Out of interest the device was a BFT95.

 

I have checked it out and it seems fine in the RX receive path of my system.    I would love to use it in a MHPA, I really don’t expect to be able to use much more than 100w (sequenced system) before EMC problems.

 

An internet search has revealed no information but I a sure there are people out there with old catalogues ?

 

Best regards and thanks....

 

Colin de G8LBS.

 

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avast.com



Tim, VK2XAX
 

And to chime in on the quest for relay data...

I have some  Dowkey 77-133 TNC  relays that I can't find any info on. Catalogues I find on the net for "77" series do not list the 133 :(

If anyone has info on these I'd appreciate it.

thanks

Tim

--
VK2XAX : QF56if : ITU59 : CQ30 : BMARC : WIA


Tim, VK2XAX
 

And I found the info thanks to, Mike G6TRM, who sent me a different Dowkey catalogue to the one I had.

It seems that mine are a "special order" and aren't actually listed in the catalogue by number, but if you look at the mechanical diagrams of the 77 series the TNC version is show !

cheers

Tim

On 13/9/20 9:14 am, Tim, VK2XAX via groups.io wrote:
And to chime in on the quest for relay data...

I have some  Dowkey 77-133 TNC  relays that I can't find any info on. Catalogues I find on the net for "77" series do not list the 133 :(

If anyone has info on these I'd appreciate it.

thanks

Tim
--
VK2XAX : QF56if : ITU59 : CQ30 : BMARC : WIA