Thanks
Nope, I don't do any social media.
Search found 684 matches
- Fri Oct 16, 2020 8:00 pm
- Forum: rx and tx mods
- Topic: Request. President Lincoln II plus
- Replies: 10
- Views: 1361
- Mon Oct 12, 2020 10:41 am
- Forum: rx and tx mods
- Topic: Request. President Lincoln II plus
- Replies: 10
- Views: 1361
Re: Request. President Lincoln II plus
OK, receive cap changes added above.
- Sat Oct 10, 2020 12:46 pm
- Forum: rx and tx mods
- Topic: Request. President Lincoln II plus
- Replies: 10
- Views: 1361
Re: Request. President Lincoln II plus
I've had a lot going on, I'll get the receive mods up as soon as I can.
- Tue Oct 06, 2020 8:52 am
- Forum: rx and tx mods
- Topic: Request. President Lincoln II plus
- Replies: 10
- Views: 1361
Re: Request. President Lincoln II plus
Yes they are. I'm too old to mod SMD radios but I still provide info to anyone that asks. A few gentlemen here have went the extra mile and did the micro work and hi-fi'd their radios. I applaud them..
Good luck!
Good luck!
- Mon Oct 05, 2020 4:41 pm
- Forum: rx and tx mods
- Topic: Request. President Lincoln II plus
- Replies: 10
- Views: 1361
Re: Request. President Lincoln II plus
Found the TX caps, the RX is a little more complicated as it's on several areas of the multiple page schematic: TX: : Mic amp: Change C571, C570, C530, C527 to 2.2uF non-polar AM regulator/modulator: Change C153, C152 to 2.2uF non-polar. Change E14 to a 330uF 25 volt electrolytic, observe polarity D...
- Sun Oct 04, 2020 5:56 pm
- Forum: rx and tx mods
- Topic: 2970n2 injection spot
- Replies: 2
- Views: 670
Re: 2970n2 injection spot
I think that radio has the ept695015a board. That would make it the same as a 2995DX.
You would inject through a 4.7uF to 10uF cap at the R290/R291 end of C262
You would inject through a 4.7uF to 10uF cap at the R290/R291 end of C262
- Fri Oct 02, 2020 9:32 am
- Forum: rx and tx mods
- Topic: Request. President Lincoln II plus
- Replies: 10
- Views: 1361
Re: Request. President Lincoln II plus
I'm going to assume that this schematic is the right one:
https://simonthewizard.com/2014/08/26/p ... chematics/
I'll stare at it and get back to you..
https://simonthewizard.com/2014/08/26/p ... chematics/
I'll stare at it and get back to you..
- Sat Sep 26, 2020 11:07 am
- Forum: rx and tx mods
- Topic: Vfo wind up
- Replies: 35
- Views: 14246
Re: Vfo wind up
Yes, I think it's VR5 on either the Grant or Grant XL with the 8719 PLL.
- Thu Aug 27, 2020 8:15 am
- Forum: rx and tx mods
- Topic: Vfo wind up
- Replies: 35
- Views: 14246
Re: Vfo wind up
Once again the clairifier has to be stock but you connect the + to the center swiper of VR3 and the - to ground.
This mod also works on Cobra 140/142.
This mod also works on Cobra 140/142.
- Sat Aug 01, 2020 9:20 am
- Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
- Topic: 29 ltd classic philly made hi-fi help
- Replies: 15
- Views: 2993
Re: 29 ltd classic philly made hi-fi help
I direct injection a cobra 29 classic is can't get the squeal out of the receive when I key what can I do to get the squeal out The problem with injecting a 29 at C37 is that the same audio output stage is used for both the receive and transmit. When you inject at C37, you need to find a way to mut...
- Thu Jul 23, 2020 5:13 pm
- Forum: rx and tx mods
- Topic: Texas Ranger TR-127GK, TR-127DX
- Replies: 0
- Views: 1632
Texas Ranger TR-127GK, TR-127DX
Receive: Change C21 and C39 to 2.2uF non-polarized electrolytic or mylar Change C51 to a 1000uF, 25 volt electrolytic, observe polarity Transmit: Change C74 to a 1.5uF, 16 volt Tantalum or electrolytic with the + towards TR 19 Change C40 to a .1uF (104) mylar This radio is a lot like a 29. As such ...
- Fri Jun 05, 2020 4:07 pm
- Forum: rx and tx mods
- Topic: ftdx-1200
- Replies: 7
- Views: 1285
Re: ftdx-1200
I've been studying the schematic. It looks like the last IF gets converted to 30khz then goes out of the main board into the DSP board. Following the signal on the DSP board it goes straight to the ADC/DAC chip through some DC coupled amplifier stages and gets converted into the digital realm. It ap...
- Sun May 24, 2020 7:37 am
- Forum: rx and tx mods
- Topic: ftdx-1200
- Replies: 7
- Views: 1285
Re: ftdx-1200
As you know the schematic is pretty complex and is one of those stupid ones that integrates several circuit paths in to one fat line. Finding the other end of any one certain path takes time. I've isolated several transmit caps but only a couple at the end of the receive chain. I'll stare at it a li...
- Sat May 16, 2020 4:40 pm
- Forum: rx and tx mods
- Topic: ftdx-1200
- Replies: 7
- Views: 1285
Re: ftdx-1200
There doesn't seem to be a schematic for it online so doing hi-fi mods would be difficult. I do see a "REC" jack on the back panel that states it's a line level receive output. Maybe it would sound better?
- Sat May 02, 2020 4:31 pm
- Forum: rx and tx mods
- Topic: Goldfinger galaxy ssb
- Replies: 1
- Views: 973
Re: Goldfinger galaxy ssb
I'm pretty sure the SSB base is the same as the 88HL
- Thu Apr 30, 2020 8:13 am
- Forum: rx and tx mods
- Topic: Hifi tx rx inject also for 2980 and galaxy ssb
- Replies: 7
- Views: 1526
Re: Hifi tx rx inject also for 2980 and galaxy ssb
Yeah, the ept360014b is the same as the 88HL.
If you want wide audio through the mic jack you will need to bypass the echo board.
If you want wide audio through the mic jack you will need to bypass the echo board.
- Fri Apr 24, 2020 10:51 am
- Forum: rx and tx mods
- Topic: Galaxy DX2517, TR-6900 HiFi
- Replies: 12
- Views: 2190
- Fri Apr 03, 2020 1:44 pm
- Forum: rx and tx mods
- Topic: Hifi tx rx inject also for 2980 and galaxy ssb
- Replies: 7
- Views: 1526
Re: Hifi tx rx inject also for 2980 and galaxy ssb
There isn't a schematic for a 2980 but if it's the same as a 2980DX, the hi-fi mod is the same as the Galaxy 959.
http://www.wwpdx.com/ForumWWPDX/viewtop ... 32&t=12330
I'll look up the old SSB base soon and post it up.
http://www.wwpdx.com/ForumWWPDX/viewtop ... 32&t=12330
I'll look up the old SSB base soon and post it up.
- Sun Mar 15, 2020 9:24 pm
- Forum: rx and tx mods
- Topic: Galaxy DX2517, TR-6900 HiFi
- Replies: 12
- Views: 2190
- Sun Mar 15, 2020 6:59 pm
- Forum: rx and tx mods
- Topic: 148F GTL, TR296GK/DX, EPT014811z Hi-Fi
- Replies: 2
- Views: 2106
148F GTL, TR296GK/DX, EPT014811z Hi-Fi
Receive: Change C71, C76, C187 and C183 to 4.7uF mylar, polypropylene or non polarized electrolytic More highs? Change C182 to a 103 (.01uF) Transmit (whole audio chain): Change C108 and C104 to 10uF 16 volt tantalum or electrolytic, observe polarity Change C101 and C99 to 4.7uF 16 volt tantalum or...
- Sun Mar 15, 2020 6:36 pm
- Forum: rx and tx mods
- Topic: Galaxy DX2517, TR-6900 HiFi
- Replies: 12
- Views: 2190
Re: Cobra 148f, Galaxy DX2517. TR-296, TR-6900 HiFi
It looks different. Looks like the 148F GTL with the EPT014811z board is the same as the TR296GK and TR296DX. Luckily CBTricks has the schematic. I'll revise this thread and make a new one.
- Sun Mar 15, 2020 4:47 pm
- Forum: rx and tx mods
- Topic: Galaxy DX2517, TR-6900 HiFi
- Replies: 12
- Views: 2190
Re: Galaxy DX2517, TR-6900 HiFi
EPT690010Z :Galaxy DX2517, Ranger RG66, RG99, Cobra 148F GTL DX+, Texas Ranger, TR6900, TR6900 Jumbo, TR6900F and others) Receive: Change C78, C40, C185 to 4.7uF mylar, polypropylene or non-polarized electrolytic. More highs? Change C39 to a 103 (.01uF) On the DX2517 the "Narrow filter" EP...
- Mon Mar 09, 2020 12:06 pm
- Forum: rx and tx mods
- Topic: Galaxy 66 v direct injection hifi rx tx
- Replies: 3
- Views: 999
Re: Galaxy 66 v direct injection hifi rx tx
Yes, Googling ept360014b shows they are all about the same.
- Fri Mar 06, 2020 1:27 pm
- Forum: rx and tx mods
- Topic: Uniden PC-122, PC-122XL
- Replies: 7
- Views: 4308
- Fri Mar 06, 2020 1:24 pm
- Forum: rx and tx mods
- Topic: Cobra 146GTL, Uniden PC-244 hi-fi mods
- Replies: 0
- Views: 2036
Cobra 146GTL, Uniden PC-244 hi-fi mods
Receive : Change C25 and C29 to 2.2uF mylar, polypropylene or non-polarized electrolytic Change C142 to a 2.2uF, 16 volt electrolytic. Observe polarity Change C138 and C139 to 2.2uF mylar, polypropylene or non-polarized electrolytic Transmit : Change C129, C118 and C112 to 2.2uF mylar, polypropylen...
- Thu Mar 05, 2020 9:36 am
- Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
- Topic: Cobra 29 GTL direct inject, audio audible in recieve.
- Replies: 10
- Views: 2754
Re: Cobra 29 GTL direct inject, audio audible in recieve.
The R48 side of C37
The hi-fi rx/tx is the same as the 29LTD
The hi-fi rx/tx is the same as the 29LTD
- Sun Feb 23, 2020 9:31 am
- Forum: rx and tx mods
- Topic: Wide banding a 98 vhp
- Replies: 1
- Views: 999
- Sat Feb 22, 2020 5:06 pm
- Forum: rx and tx mods
- Topic: Vfo wind up
- Replies: 35
- Views: 14246
Re: Vfo wind up
Yeah, it basically can only be heard on AM when you are keying/heterodyning with other signals. It's hard to hear on a radio in close proximity. If you hear it on SSB though, that means it's working.
- Wed Feb 05, 2020 11:01 am
- Forum: rx and tx mods
- Topic: President Dwight D cap changes?
- Replies: 8
- Views: 3085
Re: President Dwight D cap changes?
As all of the 858 chassis are old, it's a good idea to replace all of the larger electrolytics in the power supply and on the main board. I always replace any that are 220uF or larger. Another cap that should always be changed on the 858 chassis is C179, a 2.2uF Tantalum. Replace it with a 1uF-50 vo...
- Mon Feb 03, 2020 3:28 pm
- Forum: rx and tx mods
- Topic: President Dwight D cap changes?
- Replies: 8
- Views: 3085
Re: President Dwight D cap changes?
First is the boards the same from the madison and Dwight D with 858pll my board in my madison is a pc346aa board if it is then can you tell me a good final mod and how to fatten and widen up the rx and tx and the upgrades with the capacitors and resistors for power and strong modulation for AM ONLY...