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R-274D/URR ?
I just got this unit at the ABQ swap and started looking for a a manual with
Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR |
"Henry Kolesnik" wrote in message om... I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR It says URR? -- 73 and good DXing. Brian ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A lot of radios and 100' of rusty wire! Zumbrota, Southern MN Brian's Radio Universe http://webpages.charter.net/brianhill/ EMAIL- (Hide the $100 to reply!) |
http://www.qsl.net/la5ki/r274d.htm
On Sat, 05 Feb 2005 17:12:40 GMT, "Henry Kolesnik" wrote: I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? |
Henry Kolesnik wrote: I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? Appears to be the Mil version of the SX-73 at any rate, also similar to the SP600. Seems to be Hallicrafters? dxAce Michigan USA |
Henry Kolesnik wrote: I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR Hank, The Hallicrafters didn't come with mechanical filters. The R-274 series actually had receivers built by both Hallicrafters and Hammarlund. The Hallicrafters were designated R-274/URR, R-274D/URR and SX-73. The Hammarlund SP-600's that had the R-274 designation were listed as R-274A/URR, R-274B/URR and R-274C/URR. The full list can be seen at: http://www.hammarlund.info/sp600.html How about a photo of what you got? Les |
wrote in message oups.com... Henry Kolesnik wrote: I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR Hank, The Hallicrafters didn't come with mechanical filters. The R-274 series actually had receivers built by both Hallicrafters and Hammarlund. The Hallicrafters were designated R-274/URR, R-274D/URR and SX-73. The Hammarlund SP-600's that had the R-274 designation were listed as R-274A/URR, R-274B/URR and R-274C/URR. The full list can be seen at: http://www.hammarlund.info/sp600.html How about a photo of what you got? Les I thought those were all designated FRR? B.H. |
Sorry, it says FRR, not URR!
Lack of thinking, sorry. I'll put pix up at: alt.binaries.picutres.radio -- 73 Hank WD5JFR "Brian Hill" wrote in message ... "Henry Kolesnik" wrote in message om... I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR It says URR? -- 73 and good DXing. Brian ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A lot of radios and 100' of rusty wire! Zumbrota, Southern MN Brian's Radio Universe http://webpages.charter.net/brianhill/ EMAIL- (Hide the $100 to reply!) |
Brian Hill wrote: wrote in message oups.com... Henry Kolesnik wrote: I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR Hank, The Hallicrafters didn't come with mechanical filters. The R-274 series actually had receivers built by both Hallicrafters and Hammarlund. The Hallicrafters were designated R-274/URR, R-274D/URR and SX-73. The Hammarlund SP-600's that had the R-274 designation were listed as R-274A/URR, R-274B/URR and R-274C/URR. The full list can be seen at: http://www.hammarlund.info/sp600.html How about a photo of what you got? Les I thought those were all designated FRR? B.H. They are, I goofed and continued on with Hank's URR. FRR Fixed Radio Receiver Les |
"Henry Kolesnik" wrote in message . com... Sorry, it says FRR, not URR! Lack of thinking, sorry. I'll put pix up at: alt.binaries.picutres.radio -- 73 Hank WD5JFR Ok. Yea that would have been a rare one allright. It's either a SP-600 or a SX-73. The collins R-390, 388s etc used the URR designation and other radios but I've never heard of a R-274 under that. I'm just going on memory so I could be wrong. -- 73 and good DXing. Brian ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A lot of radios and 100' of rusty wire! Zumbrota, Southern MN Brian's Radio Universe http://webpages.charter.net/brianhill/ EMAIL- (Hide the $100 to reply!) |
The pix are up.
-- 73 Hank WD5JFR "Henry Kolesnik" wrote in message . com... Sorry, it says FRR, not URR! Lack of thinking, sorry. I'll put pix up at: alt.binaries.picutres.radio -- 73 Hank WD5JFR "Brian Hill" wrote in message ... "Henry Kolesnik" wrote in message om... I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR It says URR? -- 73 and good DXing. Brian ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A lot of radios and 100' of rusty wire! Zumbrota, Southern MN Brian's Radio Universe http://webpages.charter.net/brianhill/ EMAIL- (Hide the $100 to reply!) |
"Henry Kolesnik" wrote in message . com... The pix are up. Yep you got yourself a Hallicrafters SX-73. Looks like a nice one too. -- 73 and good DXing. Brian ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A lot of radios and 100' of rusty wire! Zumbrota, Southern MN Brian's Radio Universe http://webpages.charter.net/brianhill/ EMAIL- (Hide the $100 to reply!) |
Henry -
This is definitely the "Hallicrafters" SX-73 version of the R-274. I've had a couple of these pass through my hands and have one right now. But yours seems highly modified. Also, I have never seen the front panel painted with the color yours is - Does it appear original? The two additional knobs in the upper left hand corner are new - On "normal" SX-73 models, there is nothing but a channel tag there. Also, I notice one of the toggle switches is labeled, "calibrate" when on the standard SX-73, it's a switch for the Automatic Noise Blanker. Finally, I notice there is a "notch" adjustment in the middle on the lower rows of knobs - on the standard SX-73, this is a Crystal Phasing adjustment. Yours is quite a rare find, indeed - I have never seen one like this. The scope of modifications would suggest these were not home brew modifications - if I'm wrong, whoever did it was highly motivated! Now, would you be interested in parting with this unit :-)? Enjoy your find! Dennis Gibbs "Henry Kolesnik" wrote in message om... I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR |
Henry,
be extremely careful when cleaning or working around the finger contacts on that turret assembly, if things get out of mechanical alighnment they can get mashed pretty easily. Good luck, John "Henry Kolesnik" wrote in message om... I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR |
Thanks, I'll be extra careful..
I uploaded several more pix to abpr showing the mfg date, label, filters, filter subassembly and view of the chassis from below. The bottom cover plate has 27!! screws. Any other info appreciated. -- 73 Hank WD5JFR "-XC-" wrote in message ... Henry, be extremely careful when cleaning or working around the finger contacts on that turret assembly, if things get out of mechanical alighnment they can get mashed pretty easily. Good luck, John "Henry Kolesnik" wrote in message om... I just got this unit at the ABQ swap and started looking for a a manual with Google and found that unit is differnt from the ones I've found pictured. It has 3 Collins mechanical filters. At the top upper left it has a Squelch control and next to it is a Noise Silencer control. The mode swtich is labeled AM and SSB/CW. The lettering looks factory done. The filters have been added on a sub chassis and I'm not sure it is a factory mod or homebrew but it has been nicely done. The S meter was made by Texas Instruments. It has some problems including lots of nosie, hetrodynes, etc.. I've only seen one of these in the past and can recall which version it was, they must be scarce? Anyone have any info? -- 73 Hank WD5JFR |
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