Eagle RX-60N Comms Receiver. - UK Vintage Radio Repair and Restoration Discussion Forum

Trevor · 5th Jun 2012, 7:31 pm

Does anyone have the schematic for this communication receiver as I have one that seems to be low in gain, but still works.

Regards Trev.

phasedout · 5th Jun 2012, 8:33 pm

Hi Trev, the only thing I can find is this below on link. Alan.

http://www.radiomuseum.org/r/eagleprod_rx_60n.html

Trevor · 5th Jun 2012, 10:34 pm

Thanks for that I have all ready found that link and I must admit that I think I will be grasping at straws here By the way the link is good !
This unit is an ac / dc item not my favourite technology I will end up powering it with an isolating transformer at the very least
But I have always liked eagle products they have always delivered a reasonable low cost item
regards Trev

Alistair D · 5th Jun 2012, 10:43 pm

Eagle electronics did a lot of badge engineering in their time. The picture of your set reminds me of a set also labelled as Star or even Lafayette?

Al

Dave757 · 5th Jun 2012, 11:21 pm

Hi Trev,

I believe the circuit is similar to the Lafayette HE-40.
The circuit uses the same valve line up except for the rectifier, which is shown as a 'diode' in the HE 40 rather
than a valve. There are several sets like this. I had a Veritone CR150 which started life as a 120V AC/DC set,
but was supplied to the UK market as a 240V AC set by the expedient of fitting a 240V to 120v step down
transformer. I hope the attached HE 40 details are useful

Kind regards

Dave

derekg1epd · 13th Jul 2015, 7:33 pm

Thanks for the schematic. Just looking at it, it appears not to have a BFO like the RX60.
It could just be me, very useful though.
Thanks, G1EPD

Dave757 · 14th Jul 2015, 12:07 am

Hi Derek,

The " right hand side" of the 12BA6 is used as a rather crude form of BFO.

Kind regards

Dave

G6Tanuki · 14th Jul 2015, 6:25 pm

Yes, the 'BFO' is essentially regeneration achieved by varying the effectiveness of the decoupling of the IF amp so it can be brought into oscillation.

Crude, but effective for CW reception - and used by quite a few manufacturers such as Trio and Hallicrafters on their budget models.

SSB can be a pain though - getting the correct level of oscillation to match the level of the SSB signal comes only with lots of experience !!

Also, these little receivers have essentially no image-rejection on the higher frequencies - a real pain if trying to listen to amateurs on 14MHz because the 15MHz broadcast-band is the image!

Alan Stepney · 14th Jul 2015, 6:35 pm

Eagle was started and owned by Mr Adler.
(Anyone who knows German will see the link between his name and the company.)

He also owned Relda Radio (Adler backwards.) and used that company to sell the goods he imported before starting Eagle.
His imports were mainly badge engineered versions of products that were already in production, although later he had some items made to his own designs.

So, for any Eagle product, particularly the early ones, just find what it was based upon.

5th Jun 2012, 7:31 pm	#1
Trevor Octode Join Date: Aug 2006 Location: Stoke-on-Trent, Staffordshire, UK. Posts: 1,082	Eagle RX-60N Comms Receiver. Does anyone have the schematic for this communication receiver as I have one that seems to be low in gain, but still works. Regards Trev.

5th Jun 2012, 8:33 pm	#2
phasedout Retired Dormant Member Join Date: Aug 2009 Location: Barnsley, South Yorkshire, UK. Posts: 207	Re: eagle RX-60N Hi Trev, the only thing I can find is this below on link. Alan. http://www.radiomuseum.org/r/eagleprod_rx_60n.html

5th Jun 2012, 10:34 pm	#3
Trevor Octode Join Date: Aug 2006 Location: Stoke-on-Trent, Staffordshire, UK. Posts: 1,082	Re: Eagle RX-60N Comms Receiver. Thanks for that I have all ready found that link and I must admit that I think I will be grasping at straws here By the way the link is good ! This unit is an ac / dc item not my favourite technology I will end up powering it with an isolating transformer at the very least But I have always liked eagle products they have always delivered a reasonable low cost item regards Trev

5th Jun 2012, 10:43 pm	#4
Alistair D Nonode Join Date: Jan 2010 Location: Edinburgh, UK. Posts: 2,008	Re: Eagle RX-60N Comms Receiver. Eagle electronics did a lot of badge engineering in their time. The picture of your set reminds me of a set also labelled as Star or even Lafayette? Al __________________ I won't tell you how I discovered that.

5th Jun 2012, 11:21 pm	#5
Dave757 Heptode Join Date: Apr 2009 Location: Scratby, Norfolk, UK. Posts: 650	Re: Eagle RX-60N Comms Receiver. Hi Trev, I believe the circuit is similar to the Lafayette HE-40. The circuit uses the same valve line up except for the rectifier, which is shown as a 'diode' in the HE 40 rather than a valve. There are several sets like this. I had a Veritone CR150 which started life as a 120V AC/DC set, but was supplied to the UK market as a 240V AC set by the expedient of fitting a 240V to 120v step down transformer. I hope the attached HE 40 details are useful Kind regards Dave Attached Thumbnails

13th Jul 2015, 7:33 pm	#6
derekg1epd Retired Dormant Member Join Date: Jul 2015 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 1	Re: Eagle RX-60N Comms Receiver. Thanks for the schematic. Just looking at it, it appears not to have a BFO like the RX60. It could just be me, very useful though. Thanks, G1EPD

14th Jul 2015, 12:07 am	#7
Dave757 Heptode Join Date: Apr 2009 Location: Scratby, Norfolk, UK. Posts: 650	Re: Eagle RX-60N Comms Receiver. Hi Derek, The " right hand side" of the 12BA6 is used as a rather crude form of BFO. Kind regards Dave

14th Jul 2015, 6:25 pm	#8
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,998	Re: Eagle RX-60N Comms Receiver. Yes, the 'BFO' is essentially regeneration achieved by varying the effectiveness of the decoupling of the IF amp so it can be brought into oscillation. Crude, but effective for CW reception - and used by quite a few manufacturers such as Trio and Hallicrafters on their budget models. SSB can be a pain though - getting the correct level of oscillation to match the level of the SSB signal comes only with lots of experience !! Also, these little receivers have essentially no image-rejection on the higher frequencies - a real pain if trying to listen to amateurs on 14MHz because the 15MHz broadcast-band is the image!

14th Jul 2015, 6:35 pm	#9
Alan Stepney Rest in Peace Join Date: Feb 2008 Location: Dorset, UK. Posts: 947	Re: Eagle RX-60N Comms Receiver. Eagle was started and owned by Mr Adler. (Anyone who knows German will see the link between his name and the company.) He also owned Relda Radio (Adler backwards.) and used that company to sell the goods he imported before starting Eagle. His imports were mainly badge engineered versions of products that were already in production, although later he had some items made to his own designs. So, for any Eagle product, particularly the early ones, just find what it was based upon.