Author |
Message |
Freebird
Intermediate Member Username: Freebird
Post Number: 267 Registered: 1-2003
| Posted on Sunday, October 16, 2005 - 11:21 pm: |
|
I need the clarifier mod and channel mods for a realistic 449 ssb anyone know them? |
Al_lafon
Intermediate Member Username: Al_lafon
Post Number: 109 Registered: 3-2005
| Posted on Saturday, November 05, 2005 - 10:22 pm: |
|
Hay its a uPD858 just run a search for that online . heres what i got THIS MOD IS FOR THE 27.415 TO 27.445 MHZ MOD. WHICH IS A VERY HARD MOD TO FIND INFO ON, THIS MOD SHOULD ALSO OPEN UP (A CHANNELS) AND FREQUENCY SKIPS. NOT SURE IF IT WELL OPEN ALL SKIPS, BUT GIVE IT TRY AND SEE WHATS HAPPENS. (1) CUT TRACE TO PIN-17 (2) PLACE A 4.7 KOHM ACROSS THE CUT (3) INSTALL SPST SWITH (4) SOLDER TOP PIN OF SWITCH TO 8 VDC (RX AND TX) (5) SOLDER MIDDLE PIN TO PIN-17 (6) SOLDER BOTTEM PIN TO PCB GROUND,(NOT CHASSIS) 26.085 TO 28.045 FREQUENCY EXPANTION (1)CUT TRACES TO PINS 19 AND 21 (2)INSTALL 2 SPST SWITCHES (3)PLACE A 4.7KOHM ACROSS EACH CUT (4)SOLDER TOP OF PINS OF BOTH SWITCHES TO 8 VDC (5)SOLDER MIDDLE PIN OF SWITCH 1 TO PIN 19 (6)SOLDER BOTTEM PIN OF SAME SWITCH TO PCB GROUND (NOT CHASSIS) (7)SOLDER MIDDLE PIN OF SWITCH 2 TO PIN 21 (8)SOLDER BOTTEM PIN TO PCB GROUND (NOT CHASSIS) |
Kid_vicious
Advanced Member Username: Kid_vicious
Post Number: 787 Registered: 9-2004
| Posted on Sunday, November 06, 2005 - 1:22 am: |
|
if you look in lou franklin's book, "the screwdriver experts guide to CB radio repair"; you will find channel and clarifier mods in the back for the UPD858 SSB chassis. and your TRC449 is one. |
Viking
Intermediate Member Username: Viking
Post Number: 228 Registered: 2-2002
| Posted on Thursday, November 10, 2005 - 10:59 am: |
|
If you don't have the book or you can't find anything searching, you can also search for similar radios: TRC 449 TRC 457 TRC 458 Robyn SB510D Robyn SB520D Cobra 138XLR Cobra 139XLR ...all pretty much the same. |
Kid_vicious
Advanced Member Username: Kid_vicious
Post Number: 823 Registered: 9-2004
| Posted on Friday, November 11, 2005 - 12:53 am: |
|
also dont forget the PRESIDENT washington and madison. |
Yankee
Advanced Member Username: Yankee
Post Number: 998 Registered: 7-2003
| Posted on Friday, November 11, 2005 - 10:38 am: |
|
The uPD-858 sideband list is yet longer, Courier Centurion, Pierce Simpson Simba, first model President Grant. Want to think Courier and Pierce Simpson also made some mobile sideband radios with the 858 PLL. The only difference between the Radio Shack line and the rest is that the Radio Shack models had the microphone gain inside on the PC board. |