Search found 32 matches
- Fri Jun 23, 2023 12:38 pm
- Forum: rx and tx mods
- Topic: Turner +3 widen audio?
- Replies: 19
- Views: 12864
Re: Turner +3 widen audio?
Awesome read to grasp the hifi audio concept
- Mon Jul 19, 2021 6:34 pm
- Forum: Microphones & Mic Wiring
- Topic: Cobra CA60 Desk MIcropone to HiFi
- Replies: 5
- Views: 1273
Re: Cobra CA60 Desk MIcropone to HiFi
Hello Goldfinger:
Thanks again for your help
The Highs improve a lot, I guess the caps to ground where shot to begin with
The element test good in the pre-amp in bypass mode
Thanks again
a365
Thanks again for your help
The Highs improve a lot, I guess the caps to ground where shot to begin with
The element test good in the pre-amp in bypass mode
Thanks again
a365
- Sat Jul 17, 2021 12:46 pm
- Forum: Microphones & Mic Wiring
- Topic: Cobra CA60 Desk MIcropone to HiFi
- Replies: 5
- Views: 1273
Re: Cobra CA60 Desk MIcropone to HiFi
Hello Golfinger:
Thank you for our reply
I been suspecting that the mike element could be the problem (old or damage by humidity)
This microphone lacks of highs
Thanks again for your input
Regards
a365
Thank you for our reply
I been suspecting that the mike element could be the problem (old or damage by humidity)
This microphone lacks of highs
Thanks again for your input
Regards
a365
- Fri Jul 16, 2021 10:09 pm
- Forum: Microphones & Mic Wiring
- Topic: Cobra CA60 Desk MIcropone to HiFi
- Replies: 5
- Views: 1273
Cobra CA60 Desk MIcropone to HiFi
Hello Goldfinger:
I wonder if you can tell me or suggest what to modify on this microphone to get a better hifi sound
TIA
a365
I wonder if you can tell me or suggest what to modify on this microphone to get a better hifi sound
TIA
a365
- Mon Dec 28, 2020 10:38 pm
- Forum: rx and tx mods
- Topic: 858 sideband chassis hifi
- Replies: 4
- Views: 2423
Re: 858 sideband chassis hifi
Thank you GF for your reply
Regards
A365
Regards
A365
- Mon Dec 28, 2020 7:45 pm
- Forum: rx and tx mods
- Topic: 858 sideband chassis hifi
- Replies: 4
- Views: 2423
Re: 858 sideband chassis hifi
Hello GF:
I wonder if the value for C95 is not a typo
Original value in the schematics for Cobra 138xlr and Realistic TRC-449 shows 470uF/16V
Thank you for your reply
A365
I wonder if the value for C95 is not a typo
Original value in the schematics for Cobra 138xlr and Realistic TRC-449 shows 470uF/16V
Thank you for your reply
A365
- Mon May 25, 2020 4:37 pm
- Forum: rx and tx mods
- Topic: ftdx-1200
- Replies: 7
- Views: 1289
Re: ftdx-1200
My 2 cents: Why not attack the problem externally if you concern about the RX sound ? Just use and external audio amp with and equalizer or a little amp with low and high tone to the Ext Spkr jack in the back that way you can control the tone of the sound Even a pair of powered computer speakers com...
- Fri Mar 06, 2020 3:50 pm
- Forum: rx and tx mods
- Topic: Widen the receive on a Cobra 29 / PC 78
- Replies: 6
- Views: 3861
Re: Widen the receive on a Cobra 29 / PC 78
The filter only works on RX
- Sat Sep 23, 2017 2:45 am
- Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
- Topic: CPI CP2000 AM modulation limiter modification
- Replies: 4
- Views: 3263
Re: CPI CP2000 AM modulation limiter modification
To much bleach on a blue towel
- Wed Sep 06, 2017 9:58 pm
- Forum: rx and tx mods
- Topic: Uniden HR-2510 RX/TX, hi-fi mods
- Replies: 8
- Views: 6049
Re: Uniden HR-2510 RX/TX, hi-fi mods
Hello Goldfinger:
Thank you again for your advice Sir
I will start to re-cap this old radio and in the process I will do the changes for HiFi TX & RX and install the socket for Direct Injection
Now it's time for hot iron to fill the room with flux fumes
Best Regards
A365
Thank you again for your advice Sir
I will start to re-cap this old radio and in the process I will do the changes for HiFi TX & RX and install the socket for Direct Injection
Now it's time for hot iron to fill the room with flux fumes
Best Regards
A365
- Tue Sep 05, 2017 11:39 am
- Forum: rx and tx mods
- Topic: Uniden HR-2510 RX/TX, hi-fi mods
- Replies: 8
- Views: 6049
Re: Uniden HR-2510 RX/TX, hi-fi mods
Hello Goldfinger:
Any suggestion on Direct Injection for this radio ?
Thanks in advance
A365
Any suggestion on Direct Injection for this radio ?
Thanks in advance
A365
- Mon Sep 04, 2017 10:38 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-465
- Replies: 8
- Views: 4203
Re: Realistic TRC-465
Hi Goldfinger:
Thank you for your great help
Best Regards
A365
Thank you for your great help
Best Regards
A365
- Mon Sep 04, 2017 7:59 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-465
- Replies: 8
- Views: 4203
Re: Realistic TRC-465 TX & RX Capacitor Location
Hi Goldfinger: The capacitor in question for Direct Injection is C166 and connects to R185 Also I took some screenshots from the service manual for the capacitor locations that will help members in the future if they decide to do these modifications https://thumb.ibb.co/gYzLwv/TRC_465_Printed_Side_T...
- Sat Sep 02, 2017 3:23 am
- Forum: rx and tx mods
- Topic: Realistic TRC-465
- Replies: 8
- Views: 4203
Re: Realistic TRC-465
Hello Goldfinger:
I Hope you feel better now and I want to thank you for taking the time to guide me in my HiFi quest on CB Radio
Have a nice Holiday Weekend
A365
I Hope you feel better now and I want to thank you for taking the time to guide me in my HiFi quest on CB Radio
Have a nice Holiday Weekend
A365
- Tue Aug 29, 2017 1:42 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-465
- Replies: 8
- Views: 4203
Re: Realistic TRC-465
Hi Goldfinger:
I am sorry to hear that you where ill Sir,I hope you get well soon
This is not a priority,is just one of my new radios to play with when the time comes
Best Regards
A365
I am sorry to hear that you where ill Sir,I hope you get well soon
This is not a priority,is just one of my new radios to play with when the time comes
Best Regards
A365
- Tue Aug 29, 2017 1:33 pm
- Forum: rx and tx mods
- Topic: 142-2000 Direct Injection
- Replies: 4
- Views: 1757
Re: 142-2000 Direct Injection
Hello Goldfinger:
Once again thank you for your input in my quest for better audio on my transceiver
I been looking at brick wall limiters hardware and they are quite expensive
I guess I will have to keep a good stash of C945 and 2N3055 transistors in the meantime
Best Regards
A365
Once again thank you for your input in my quest for better audio on my transceiver
I been looking at brick wall limiters hardware and they are quite expensive
I guess I will have to keep a good stash of C945 and 2N3055 transistors in the meantime
Best Regards
A365
- Fri Aug 25, 2017 11:01 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-465
- Replies: 8
- Views: 4203
Realistic TRC-465
Hello Goldfinger: I just got my hands on this little TRC-465 AM/SSB radio and want to change the TX & RX for more HiFi sound in both modes if possible I would like to get your suggestions and advise what caps to change Radio is very similar to the Uniden 122,Cobra 146 GTL,Realistic TRC-451,Unide...
- Wed Aug 23, 2017 6:18 pm
- Forum: rx and tx mods
- Topic: 142-2000 Direct Injection
- Replies: 4
- Views: 1757
Re: 142-2000 Direct Injection
Hi Goldfinger: First left me thank you for taking the time to reply to my questions,kudos to you for sharing your knowledge my hat of to you Sir :D My understanding is just to substitute the 2 1 K ohms resistors with an 8 ohms high wattage resistor connected as shown in the above picture :?: The tef...
- Mon Aug 14, 2017 8:48 pm
- Forum: rx and tx mods
- Topic: 142-2000 Direct Injection
- Replies: 4
- Views: 1757
142-2000 Direct Injection
Hello Goldfinger: 426 posted the following info in another forum and I have a question Ok here is what I got from Goldfinger: If you want to drive the modulator directly, you will need a 50-100 watt home audio amp between the line level source and the radio as the modulator doesn't have enough gain ...
- Fri Feb 24, 2017 10:13 pm
- Forum: rx and tx mods
- Topic: direct injection on a Cobra 29 LX
- Replies: 25
- Views: 14293
Re: direct injection on a Cobra 29 LX
Hi: If you read carefully Goldfinger suggest to replace C37 with a 104 Mylar Type Capacitor or .1uF Non-Polarized Electrolytic Inject audio @ C68 If C68 is a green Mylar stock and you replace it with a Tantalum, make sure the Tantalum's + Terminal goes towards the Base of TR 17 and the - Terminal ju...
- Mon Dec 05, 2016 4:17 pm
- Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
- Topic: Back swing issue
- Replies: 27
- Views: 8511
Re: Back swing issue
This is the link for the redraw
http://www.cbtricks.com/radios/cobra/14 ... redraw.pdf
Hope this is what you are looking for
http://www.cbtricks.com/radios/cobra/14 ... redraw.pdf
Hope this is what you are looking for
- Thu Apr 23, 2015 1:22 pm
- Forum: rx and tx mods
- Topic: Teaberry T 40 Ch Hybrid
- Replies: 6
- Views: 4963
Hello Goldfinger: Just an update Is been a month since I posted the last message and I still waiting for 1 set of capacitors to star the mods on the Teaberry T40 Hybrid Sometime next week I will get the last part to complete the mods (slow boat from China) Thanks again for all your help and I will g...
- Mon Mar 23, 2015 11:52 pm
- Forum: rx and tx mods
- Topic: Teaberry T 40 Ch Hybrid
- Replies: 6
- Views: 4963
Hello Goldfinger: WOW,You Da Man Goldfinger :D You can to my rescue again plus you posted the mod for the 23 Ch version too which I happen to have in my small junker collection waiting to be restored I do not have all the capacitors to do the mods right now,please bare with me while I place an order...
- Mon Mar 23, 2015 8:47 am
- Forum: rx and tx mods
- Topic: Teaberry T 40 Ch Hybrid
- Replies: 6
- Views: 4963
Teaberry T 40 Ch Hybrid
Hello Goldfinger:
I would like to get more HiFi sounds out of this radio in TX and RX mode
Your help will be appreciated
Thank you in advance
A365/Tony
I would like to get more HiFi sounds out of this radio in TX and RX mode
Your help will be appreciated
Thank you in advance
A365/Tony
- Sun Dec 21, 2014 12:28 am
- Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
- Topic: tram d201
- Replies: 23
- Views: 5164
522 still sells everywhere
Guitar Center Too[/quote]
This is the choice microphone for supermarket paging systems
Beer on sale on aisle #7
Merry Xmas Y'all
A365
Guitar Center Too[/quote]
This is the choice microphone for supermarket paging systems
Beer on sale on aisle #7
Merry Xmas Y'all
A365
- Sun Jun 08, 2014 10:18 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-30A TX & RX Mods
- Replies: 4
- Views: 2704
- Sun Jun 08, 2014 10:13 pm
- Forum: rx and tx mods
- Topic: Turner +3 widen audio?
- Replies: 19
- Views: 12864
- Fri Jan 17, 2014 3:41 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-30A TX & RX Mods
- Replies: 4
- Views: 2704
Hi Goldfinger: Thank you very much for your help,I will try these values and report how it works Best Regards Tony Receive Change C701 to a 1-2.2uF electrolytic or Tantalum Change C702 to a 1-2.2uF electrolytic or Tantalum C706 is already 4.7, prolly OK Transmit C707 and C710 are already big. :o Cha...
- Thu Jan 16, 2014 11:25 pm
- Forum: rx and tx mods
- Topic: magnum raptor II direct injection point?
- Replies: 8
- Views: 2983
If they are all discontinued what to we use for replacements? I've been using MOSfets in the 148's, work the same as a 1969 in my opinion. But for a cobra 2G, if the 1968 finals go bad, is there a drop in replacement? Sorry to hijack the thread, but can you point to the right location please? Many ...
- Thu Jan 16, 2014 8:28 pm
- Forum: rx and tx mods
- Topic: Realistic TRC-30A TX & RX Mods
- Replies: 4
- Views: 2704
Realistic TRC-30A TX & RX Mods
Hello Goldfinger: I would like to get your opinion on what should I replace or change in this radio to TX & RX a little bit wider or HiFi Mods for it [/img http://www.cbtricks.com/radios/realistic/trc_30/graphics/realistic_trc30a.jpg/img [img]http://www.cbtricks.com/radios/realistic/trc_30/graph...