| Author |
Message |
    
Jameslarson
Intermediate Member
Username: Jameslarson
Post Number: 119
Registered: 4-2006
| | Posted on Sunday, May 14, 2006 - 1:10 pm: | 
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Hi. Is there a mod that can be done to "clean up" the receive in my 148, or just to simply make it better? I seem to be transmitting better than receiving. Any thoughts? Thanks
PS---148 5 pin side mount |
Bruce
Senior Member
Username: Bruce
Post Number: 3834
Registered: 9-2003
| | Posted on Sunday, May 14, 2006 - 2:42 pm: |
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in what way ? |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1589
Registered: 9-2004
| | Posted on Sunday, May 14, 2006 - 6:06 pm: |
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replace TR14 with a 2SC2999 or an NTE107.
replace TR19 with the transistor you just removed from the TR14 spot (2SC1674).
replace D1,D2,D21,D22 with 1N6263's or NTE583's.
you will really like the results.
do a receiver tune up on L4, 5 and 6 afterwards for max S-meter reading. (dont try to tune to an S-9 signal. a clear channel is best.)
also, a complete receiver alignment is a good idea.
here's a link to a great tutuorial on tuning up your 8719 chassis.
all the parts numbers are for your 148.
http://www.copperelectronics.com/cgi-bin/discus4/show.cgi?tpc=34&post=113535#POST113535
feel free to ask me anything. i wrote the article so i should be able to answer your questions about it.
good luck,
matt |
Jameslarson
Intermediate Member
Username: Jameslarson
Post Number: 122
Registered: 4-2006
| | Posted on Sunday, May 14, 2006 - 10:57 pm: |
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Thanks for the info. Where do I get all those exact part numbers from? Does Copper sell these parts? Thanks. |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1599
Registered: 9-2004
| | Posted on Monday, May 15, 2006 - 11:26 pm: |
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no copper does not sell those parts.
there is a guy on internet auction site's selling the transistors for a good price.
the diodes you should be able to get from mouser electronics. they have no minimum order.
you might be able to get everything there.
i dont know.
a good idea is to do a google search on the part numbers, and see if any big stores pop up.
good luck,
matt |
