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View Full Version : Realistic TRC-101B acquisition


M0GLO
02-28-2008, 11:36 PM
I just picked up a couple of TRC-101B's for 10m conversion.
Simple crystal swap and tune up or something far more sinister?

(Just to keep in the spirit of the thread I also picked up a TRC-200, my first foray into the land of good buddies!)
KC8TCQ
02-28-2008, 11:43 PM
I just picked up a couple of TRC-101B's for 10m conversion.
Simple crystal swap and tune up or something far more sinister?

(Just to keep in the spirit of the thread I also picked up a TRC-200, my first foray into the land of good buddies!)

If you want to convert a cb to 10m, pick up a Cobra 2000GTL
M0GLO
02-29-2008, 03:30 AM
Pretty cool, but what I was after was a 5w handheld I could just carry around with a long wire to toss into a nearby park tree when conditions sounded good.
kc7jty
02-29-2008, 03:35 AM
What's a TRC101B, a walkie talkie? I know how to mod a Cobra 148/2000, Uniden Grant, Madison to 10 meters without any parts.
M0GLO
02-29-2008, 03:38 AM
What's a TRC101B, a walkie talkie? I know how to mod a Cobra 148/2000, Uniden Grant, Madison to 10 meters without any parts.

Yup, walkie talkie it is. 23 channel crystal job from yesteryear.
KC8TCQ
02-29-2008, 09:30 AM
What's a TRC101B, a walkie talkie? I know how to mod a Cobra 148/2000, Uniden Grant, Madison to 10 meters without any parts.

Yup, walkie talkie it is. 23 channel crystal job from yesteryear.

you might find this thread of interest
http://www.eham.net/forums/QRP/2421

Another nice page
http://www.geocities.com/radio107mhz/

Also you might want to try contacting an aquaintance of mine Egbert C Craig WA2SI, he has done this with a few CB walkie talkies for sending qrp CW if I remember correctly wa2si@arrl.net
M0GLO
02-29-2008, 02:46 PM
Excellent! Thanks bunch's!
w2amr
03-01-2008, 08:16 AM
What's a TRC101B, a walkie talkie? I know how to mod a Cobra 148/2000, Uniden Grant, Madison to 10 meters without any parts.

Yup, walkie talkie it is. 23 channel crystal job from yesteryear.

you might find this thread of interest
http://www.eham.net/forums/QRP/2421

Another nice page
http://www.geocities.com/radio107mhz/

Also you might want to try contacting an aquaintance of mine Egbert C Craig WA2SI, he has done this with a few CB walkie talkies for sending qrp CW if I remember correctly wa2si@arrl.net
I have converted several old tube type CBs . It's usually just a matter of imstalling a 10 meter crystal & retuning the transmitter. If it has a tunable reciever, just re align the Ifs and ocs.
KB2QU
03-01-2008, 11:04 AM
Here is the xtal mixing chart for the 101B
http://www.cbcintl.com/XTALS/AM%2033000-6490-6035.pdf
M0GLO
03-01-2008, 04:52 PM
Got that chart, but thanks for the link!

Figured it wouldn't take much, just a quick recrystal/realignment.
Wasn't sure though, I've been seeing other claim it was much too involved so don't bother.
Appliance operators I guess. ;)
KB2QU
03-02-2008, 12:31 PM
I've modified a number of cb's for 10 mtrs just change out the xtal
and a quick alignment and your good to go. You only need to change a couple of the 33mhz xtals to give you the am part of 10mtrs Good Luck.
M0GLO
03-02-2008, 03:50 PM
I've modified a number of cb's for 10 mtrs just change out the xtal
and a quick alignment and your good to go. You only need to change a couple of the 33mhz xtals to give you the am part of 10mtrs Good Luck.

That's what it looked like to me as well, 4 crystals for 23 channels.
This is WAY cheaper than picking up one of the under powered Mihuzo's or other specialty HT's for 10.