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Post by "Doc"Hammer on Sept 28, 2012 22:43:39 GMT -5
These came home with me the other night...My wife says I need to quit bringing home "strays".  First, there was my "new" Tram, now this train wreck of a radio...Note the woodgrain contact paper...  The covers were bare metal underneath...Go figure, but WHY contact paper?? Krylon is cheaper and less work! Note the "cool" thumbwheels holding the cover on the transmitter.. Anyway, they were better shape than they looked...After a really thorough inspection, 24 hours on a variac and nothing blew up...The transmitter actually worked, and decently too...The reciever is another story...Some pics...When they came home..   Reciever and Transmitter before the "cosmetic cleanup" Note the horrid speaker grill on the reciever...(THAT will be changed)   Overall this project will take most of the winter and about a hundred bucks at Barkett's, but it'll be worth it.. The transmitter actually looks decent after cleanup and works pretty good....It's even on frequency and no bad crystals! 3 watts and swings a bit too...  More pics as the project progresses! |
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Post by BBB on Sept 28, 2012 23:19:09 GMT -5
I see potential. I like the chicken head pointer on the transmitter. How 'bout some brown speaker cloth over some perforated metal as a replacement for the receiver grill...fit to match, no screws visable ... oh yea. Couple of caps and you're back in business.
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Post by gator7 on Sept 29, 2012 9:15:08 GMT -5
Yes, a little time and $ and you are on the air. Good luck.
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Post by cbrown on Oct 1, 2012 8:35:26 GMT -5
Very nice find. A little work and they''l be a nice addition.
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Post by "Doc"Hammer on Oct 1, 2012 10:06:54 GMT -5
The transmitter is on the air...I used it yesterday evening coupled to my Hallicrafters reciever (The thoughtful folks at Browning provided a pin-out diagram in the 23/S9 owner's manual on making a control cable for use with most recievers)..Worked great! Reports using a G-Stand were clean and loud..Now a question for some of you with more Browning experience than me...Will this transmitter work with any of the other AM only Browning recievers ?(R27, Golden Eagle Mark1, Mark II etc.)
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Post by FIXR on Oct 1, 2012 12:40:12 GMT -5
Rule of thumb for mixing new/old transmitters and receivers.
If the transmitter is older then the receiver, you probably won't have any trouble.
If the receiver is older then the transmitter, expect smoke.
If have used a MKII receiver with a MKIII transmitter without any trouble. I have repaired R27 receivers that were hooked up to MKII transmitters. Just follow the diagram pin for pin of the 8 pin socket or connector of each unit and see if there is going to be trouble such as grounds, "On The Air" lights, etc.
Alan
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Sandbagger
Administrator/The Boss 
Posts: 6,247 
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Post by Sandbagger on Oct 1, 2012 17:51:29 GMT -5
The transmitter is on the air...I used it yesterday evening coupled to my Hallicrafters reciever (The thoughtful folks at Browning provided a pin-out diagram in the 23/S9 owner's manual on making a control cable for use with most recievers)..Worked great! Reports using a G-Stand were clean and loud..Now a question for some of you with more Browning experience than me...Will this transmitter work with any of the other AM only Browning recievers ?(R27, Golden Eagle Mark1, Mark II etc.) Listening to you right now through Spew Radio. Sounds pretty good. Ping sounds good too....... |
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Post by "Doc"Hammer on Oct 1, 2012 18:09:33 GMT -5
The transmitter is on the air...I used it yesterday evening coupled to my Hallicrafters reciever (The thoughtful folks at Browning provided a pin-out diagram in the 23/S9 owner's manual on making a control cable for use with most recievers)..Worked great! Reports using a G-Stand were clean and loud..Now a question for some of you with more Browning experience than me...Will this transmitter work with any of the other AM only Browning recievers ?(R27, Golden Eagle Mark1, Mark II etc.) Listening to you right now through Spew Radio. Sounds pretty good. Ping sounds good too....... It does sound really good.....at the moment, it's a "Browningcrafters" ;D ;D...at least until I get this R2700 reciever up and running...so far my parts list is up to a FEW items.... Symptoms include no meter deflection or presence of a recieved carrier, Humm in the extention speaker (the stock speaker is trash and shredded, probably from the rats who lived in it at one time.....slight burn marks on several of the caps which with the exception of 1, appear to be originals..several questionable resistors, some discolored to the point of being unable to read their values. Thank goodness for schematics! Pretty sure the 5Y3 is bad as well. The list goes on....overall, the chassis doesn't look bad and outside of the caps and those resistors, I don't see anywhere that has tried to burn or smoke..will be going down to Wichita this weekend to the HAM radio supply and will cart the tubes down with me to test and acquire any new ones they might have.. |
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Sandbagger
Administrator/The Boss
Posts: 6,247
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Post by Sandbagger on Oct 2, 2012 6:07:21 GMT -5
Listening to you right now through Spew Radio. Sounds pretty good. Ping sounds good too....... It does sound really good.....at the moment, it's a "Browningcrafters" ;D ;D...at least until I get this R2700 reciever up and running...so far my parts list is up to a FEW items.... Symptoms include no meter deflection or presence of a recieved carrier, Humm in the extention speaker (the stock speaker is trash and shredded, probably from the rats who lived in it at one time.....slight burn marks on several of the caps which with the exception of 1, appear to be originals..several questionable resistors, some discolored to the point of being unable to read their values. Thank goodness for schematics! Pretty sure the 5Y3 is bad as well. The list goes on....overall, the chassis doesn't look bad and outside of the caps and those resistors, I don't see anywhere that has tried to burn or smoke..will be going down to Wichita this weekend to the HAM radio supply and will cart the tubes down with me to test and acquire any new ones they might have.. Make sure you check all the power supply rails. I've worked on a couple of MK III's where one of the cylindrical ceramic power resistors opened up and resulted in a dead receiver. |
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Post by "Doc"Hammer on Oct 11, 2012 9:11:52 GMT -5
Last night, the "FrankenEagle" made it's debut on the Classic Radio Roundup....Operated for over 2 hours with no issues at all. All audio reports were great. The 2 units work quite well together, despite being close to 10 years apart in age and production. The "On the Air" light on the reciever doesn't light, (it's on the front of the transmitter) and I could modify it, but I think I'll leave it as is in case I ever come across a Mark II AM transmitter....  I am presently deep into rebuilding the power supply on the R2700 reciever which will seem easy compared to it's cosmetic redo....it's a mess! Sandbagger: "Make sure you check all the power supply rails. I've worked on a couple of MK III's where one of the cylindrical ceramic power resistors opened up and resulted in a dead receiver." Indeed you were right, Dave..they had both opened and I was greeted with burn discoloration on the bottom of the chassis where they had smoked. Couldn't see it before due to the way they were covering that spot up. The former owner installed a later model R27 meter in place of the original and left a 3/4 x 3 inch gash down the right side of the speaker grill assy, instead of just cutting a larger hole for the new meter. A new sheet of 1/16th inch aluminum with several large holes for the new speaker and square opening for the meter and a nice dark brown coarse weave speaker cloth over that to replace it. That will look a bunch better than it does now.....The brown paint on the face isn't too bad and maybe I can get the little bit of oxidation off the front without ruining the silkscreening...more to come, stay tuned! |
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Sandbagger
Administrator/The Boss
Posts: 6,247
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Post by Sandbagger on Oct 12, 2012 6:07:55 GMT -5
Last night, the "FrankenEagle" made it's debut on the Classic Radio Roundup....Operated for over 2 hours with no issues at all. All audio reports were great. The 2 units work quite well together, despite being close to 10 years apart in age and production. The "On the Air" light on the reciever doesn't light, (it's on the front of the transmitter) and I could modify it, but I think I'll leave it as is in case I ever come across a Mark II AM transmitter.... I am presently deep into rebuilding the power supply on the R2700 reciever which will seem easy compared to it's cosmetic redo....it's a mess! Sandbagger: "Make sure you check all the power supply rails. I've worked on a couple of MK III's where one of the cylindrical ceramic power resistors opened up and resulted in a dead receiver." Indeed you were right, Dave..they had both opened and I was greeted with burn discoloration on the bottom of the chassis where they had smoked. Couldn't see it before due to the way they were covering that spot up. The former owner installed a later model R27 meter in place of the original and left a 3/4 x 3 inch gash down the right side of the speaker grill assy, instead of just cutting a larger hole for the new meter. A new sheet of 1/16th inch aluminum with several large holes for the new speaker and square opening for the meter and a nice dark brown coarse weave speaker cloth over that to replace it. That will look a bunch better than it does now.....The brown paint on the face isn't too bad and maybe I can get the little bit of oxidation off the front without ruining the silkscreening...more to come, stay tuned! Glad to see you're making progress on that "frankenbird".....  |
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First, there was my "new" Tram, now this train wreck of a radio...Note the woodgrain contact paper... 
The covers were bare metal underneath...Go figure, but WHY contact paper?? Krylon is cheaper and less work! Note the "cool" thumbwheels holding the cover on the transmitter.. 
