Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#81
Posted to rec.crafts.metalworking
|
|||
|
|||
Any Hams here?
On Tue, 26 Mar 2013 07:28:19 -0400, "Steve W."
wrote: Gunner Asch wrote: On Tue, 26 Mar 2013 00:17:01 -0400, "Michael A. Terrell" wrote: Gunner Asch wrote: On Mon, 25 Mar 2013 10:27:27 -0400, "Michael A. Terrell" wrote: Gunner Asch wrote: On Sun, 24 Mar 2013 02:51:54 -0400, "Michael A. Terrell" wrote: "DoN. Nichols" wrote: On 2013-03-20, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote: Gunner fired this volley in : Anyone got a 50 ohm, 100 watt dummy load collecting dust I can swap/trade for? An incandescent lamp isn't perfect, but works. Even better -- mount it in a gallon paint can, with a good RF connector in the lid -- and oil inside to carry the heat from the lamp to the walls of the can for cooling. The higher the frequency, the more that lamp will differ from the proper impedance -- with all those little curly Tungsten wires as the filament. But the can will at least keep the RF from radiating. The main risk with a poor impedance match would be damage to the final of the transmitter. Anyone ever have a Heathkit "Cantenna"? Was it an array of carbon resistors in oil, or an incandescent lamp? The former would be more constant impedance, at least. Don, they used a 200 watt 50 ohm carborundum non-inductive oil treated resistor immersed in transformer oil. http://www.orcadxcc.org/content/cantenna_va7jw.pdf Can anyone suggest an inexpensive radio for Technician class? Ive been told that the Icom 706, the Yaesu 817 and 857s would fit my needs..but they are more ..in some cases...far far more expensive than I can afford this year. The TS-520SE that I have has some "issues" that Im going to need to resolve over time, as Im not a board level radio tech and its going to be a learning experience...shrug What kinds of issues? It turns on, the controls work, I have a hissing sound from the speaker and it receives a signal from my signal generator. But even on a long wire antenna..no outside signals make it in. Ive got to pump up the output of the old signal generator to hear it or have it show on the meter. Do you have a manual with the schematic? No. Im searching for one now. There are a number of TS-520 manuals..but the SE version..the last version before they phased out that model is no where to be found. I did download an operators manual for the TS-520...but I need to sit down with the radio and learn everything and then ask what differences there are between it and the SE version. Id love to put a freq counter on it..but one just went on Ebay for $150. There is a 2 pin female on the backside for a display..but I dont know what it requires to run/operate. Im sure something could be bread boarded up quite simply, but..Im not an electronics tech. I just kinda swerve into that area now and then fixing CNC machines etc. Mostly though..simply a board changer. Its been a lot of years since I chased electrons around..and then it was usually in and out of tubes Look on the rear on the radio. You should find a 9 pin socket for the external VFO If it doesn't have the shorting plug you wont have receive. If no plug you need to install a jumper across pins 8&9. Ah!! There are two multipin sockets back there, a big and a small one. There is a plug with (2) wires in the big one, nothing in the small one. Ill check it out!! Sent you a link to a partial service manual. Many thanks!! The SE was the same as the 520 S Except Kenwood pulled the transverter section and the 12 volt power inputs. They cleaned up the boards some and added a wide/narrow CW filter. ? Im fairly certain this has 12vt input connector. Ill have to recheck. Gunner |
#82
Posted to rec.crafts.metalworking
|
|||
|
|||
Any Hams here?
On Tue, 26 Mar 2013 07:28:19 -0400, "Steve W."
wrote: Id love to put a freq counter on it..but one just went on Ebay for $150. There is a 2 pin female on the backside for a display..but I dont know what it requires to run/operate. Im sure something could be bread boarded up quite simply, but..Im not an electronics tech. I just kinda swerve into that area now and then fixing CNC machines etc. Mostly though..simply a board changer. Its been a lot of years since I chased electrons around..and then it was usually in and out of tubes Look on the rear on the radio. You should find a 9 pin socket for the external VFO If it doesn't have the shorting plug you wont have receive. If no plug you need to install a jumper across pins 8&9. Sent you a link to a partial service manual. The SE was the same as the 520 S Except Kenwood pulled the transverter section and the 12 volt power inputs. They cleaned up the boards some and added a wide/narrow CW filter. Thanks! Got signal input now! Still pretty weak, but I could pick up some RTTY and some code. Now I need to get the long wire up! Thanks!! Gunner |
#83
Posted to rec.crafts.metalworking
|
|||
|
|||
Any Hams here?
Gunner Asch on Tue, 26 Mar 2013 01:12:16 -0700
typed in rec.crafts.metalworking the following: Ayup, I may do just that. I did have a Conditional..way the **** back when in the late 1960s..but I let it lapse almost 50 yrs ago. Blink blink...why do I suddenly feel....really old....? Brrrrr Any time you say "now this happened about N (where N is in the sequence 20, 30 , 40, ...) years ago.." and you stop and realized "Hell fire, it was N years ago!" As my Dad said "Fifty nine's not a bad age, but sixty just sounds old!" Course, he said something similar when he was sixty nine. And Seventy nine. I'll have to say it for him, this year. pyotr -- pyotr filipivich "With Age comes Wisdom. Although more often, Age travels alone." |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
one for the radio hams??? 40 way CB channel switch pinout | UK diy | |||
one for the radio hams??? 40 way CB channel switch pinout | UK diy |