Search found 684 matches

by Goldfinger
Fri Jan 12, 2024 2:53 pm
Forum: rx and tx mods
Topic: New President McKinley Mc-Kinley, Uniden 980
Replies: 0
Views: 56

New President McKinley Mc-Kinley, Uniden 980

I've never compared them but it is said the new model McKinley is the same/similar to the Uniden 880?980 TX: Change C263, C267 to 4.7uF - 16V (or higher) Change C223 to a 4.7uF - 16V (or higher) Change C226 to a 330uF - 16V (or higher) RX: Change C83 to a 2.2uF - 16V (or higher) Change C402, C403, C...
by Goldfinger
Sun Dec 17, 2023 11:12 am
Forum: rx and tx mods
Topic: rci 2970n2
Replies: 14
Views: 4152

Re: rci 2970n2

Yes, in 2014 when I posted this mod I didn't know about the cap change on the modulator circuit yet.

Change C260 to a 330uF, 16V (or greater)
If this cap isn't changed, there will be roll-off below 100hz.
by Goldfinger
Sat Dec 16, 2023 1:10 pm
Forum: rx and tx mods
Topic: 148F GTL, TR296GK/DX, EPT014811z Hi-Fi
Replies: 2
Views: 2106

Re: 148F GTL, TR296GK/DX, EPT014811z Hi-Fi

Yes, I think the differences between the 11 and 13 boards are minor and are indeed the same in the areas that count. (TX and RX audio chains) I've modded 148F's but never worked on a TR-296 so I don't know with absolute certainty. I'm pretty sure the early models had the "11" board but the...
by Goldfinger
Sun Nov 26, 2023 11:28 am
Forum: rx and tx mods
Topic: AR3500
Replies: 13
Views: 642

Re: AR3500

Thanks again for adding your real-world findings to the forum. :mrgreen:

If I remember correctly when I modified the last 3500, it had the cap but it was an early model with the real fragile circuit board.
by Goldfinger
Fri Nov 24, 2023 11:04 am
Forum: rx and tx mods
Topic: AR3500
Replies: 13
Views: 642

Re: AR3500

C229 is close to the audio chip on the schematic but it's possible it doesn't exist on later revisions because it is redundant. C106 is just before it in the amplification line and is already blocking any DC present from the previous stage.
by Goldfinger
Thu Nov 23, 2023 10:11 pm
Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
Topic: Old 6 knob uniden grant
Replies: 3
Views: 266

Re: Old 6 knob uniden grant

If it's the Grant with the PC-409 board Direct Inject: Inject through a 10uF 25V electrolytic with the + connecting to the - lead of C99. Leave C99 in if you still want to be able to use the mic jack for TX audio. Change C46 to a 4.7uF 25V (or higher) poly/mylar or non-polarized electrolytic. Change...
by Goldfinger
Thu Nov 23, 2023 12:25 pm
Forum: >>> HIGH FIDELITY AUDIO Q and A <<< POST QUESTIONS AND COMMENTS HERE!
Topic: Old 6 knob uniden grant
Replies: 3
Views: 266

Re: Old 6 knob uniden grant

I'm responding so I don't forget after the holiday. I'll post this up tomorrow.
Happy Thanksgiving!
by Goldfinger
Tue Nov 14, 2023 11:07 pm
Forum: rx and tx mods
Topic: Hifi Texas Ranger tr696f ssb
Replies: 2
Views: 93

Re: Hifi Texas Ranger tr696f ssb

Open it up and see which EPT main board is in it. If it has the EPT069610Z, the mods for the DX959 or 2547 will work.
by Goldfinger
Tue Nov 14, 2023 8:40 pm
Forum: rx and tx mods
Topic: AR3500
Replies: 13
Views: 642

Re: AR3500

Receive: AM Change C60 to a 1uF poly/mylar or non-polarized electrolytic SSB Change C37 to a .22uF poly/mylar or ceramic disc FM Change C96 to a .22uF poly/mylar or ceramic disc ALL MODES Change C101, C104, C229 to 1uF poly/mylar or non-polarized electrolytic Change C106 to a 2.2uF poly/mylar or no...
by Goldfinger
Sat Nov 11, 2023 9:42 am
Forum: rx and tx mods
Topic: AR3500
Replies: 13
Views: 642

Re: AR3500

Hey RangertechDX, I apologize for never posting up the mod, this was just before my Dad died and I had my hands full.

Hey viper926dave, I'll get this posted up soon!
by Goldfinger
Mon Oct 16, 2023 10:10 pm
Forum: rx and tx mods
Topic: Turner M+3 mic and M+2U
Replies: 21
Views: 5269

Re: Turner M+3 mic and M+2U

Here
turner_m+2u_&_j+2u.pdf
(41.1 KiB) Downloaded 38 times
turner_m+2.pdf
(83.65 KiB) Downloaded 36 times
by Goldfinger
Wed Oct 11, 2023 12:06 pm
Forum: rx and tx mods
Topic: Realistic RadioShack HTX-100 HTX100
Replies: 0
Views: 226

Realistic RadioShack HTX-100 HTX100

TX: Change C80 to a 2.2uF, 16V or greater tantalum or electrolytic. Observe polarity. Change C71 to a 1uF poly/mylar or non-polarized electrolytic. Want a little bass-boost in the first mic amp stage? Change C82 to a 3.3uF, 16 volt or greater electrolytic. Observe polarity. Want a little more gain ...
by Goldfinger
Fri Sep 29, 2023 7:12 pm
Forum: rx and tx mods
Topic: Galaxy 86v request
Replies: 4
Views: 1616

Re: Galaxy 86v request

Some members at the Worldwide DX forum have said it's similar to a Galaxy DX-979.
by Goldfinger
Fri Sep 29, 2023 7:04 pm
Forum: rx and tx mods
Topic: Galaxy DX2517, TR-6900 HiFi
Replies: 12
Views: 2190

Re: Galaxy DX2517, TR-6900 HiFi

Post is edited. Thanks for bringing it to my attention. :mrgreen:
by Goldfinger
Fri Sep 29, 2023 5:06 pm
Forum: rx and tx mods
Topic: Galaxy DX2517, TR-6900 HiFi
Replies: 12
Views: 2190

Re: Galaxy DX2517, TR-6900 HiFi

ON the CBTricks schematic for the 2517 it looks like C89 but it's probably C39. (on the board it should be located next to Q16)

2517 C39.jpg
2517 C39.jpg (86.98 KiB) Viewed 380 times
Once you verify that, I'll modify the hifi information above. Sorry for any inconvenience..
by Goldfinger
Fri Sep 15, 2023 2:03 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

For anyone else doing this mod, Mr. Lightning informed me that C192 is soldered on the bottom side of the main board where the shielded mic gain cable's center lead and C151 solders through the board.
by Goldfinger
Mon Sep 11, 2023 4:35 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

It's also entirely possible it's not in the radio... lol.

Also, changing it's value may not be needed because it may not need the extra treble after the rest of the conversion. I only include the mods that affect the highs to give the hobbyist more flexibility.
by Goldfinger
Mon Sep 11, 2023 4:18 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

Mr. Lightning brought to my attention that he couldn't find C192 on any of the parts view. I looked everywhere in the SAMS and didn't find it listed either. This happens once in awhile with photofacts. Usually the part IS there on the radio but will be located in a weird place hand soldered in. Here...
by Goldfinger
Sun Sep 10, 2023 10:37 am
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

That last pic was hiding inside the huge foldout schematic pages...
by Goldfinger
Sat Sep 09, 2023 8:19 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

Another added
by Goldfinger
Sat Sep 09, 2023 1:58 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

I added a 4th pic. :mrgreen:

BTW, you can right click each pic and save it to your machine, that way you can see them full size and be able to zoom in.
by Goldfinger
Sat Sep 09, 2023 10:05 am
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

I don't have a scanner right now but hopefully these pics will help..
DAK X caps1.jpg
DAK X caps1.jpg (905.42 KiB) Viewed 596 times
DAK X caps2.jpg
DAK X caps2.jpg (1014.52 KiB) Viewed 596 times
DAK X caps3.jpg
DAK X caps3.jpg (460.55 KiB) Viewed 594 times
DAK X caps4.jpg
DAK X caps4.jpg (772.21 KiB) Viewed 590 times
DAK X caps5.jpg
DAK X caps5.jpg (230.26 KiB) Viewed 581 times
by Goldfinger
Sat Sep 09, 2023 9:28 am
Forum: rx and tx mods
Topic: Vfo wind up
Replies: 35
Views: 14246

Re: Vfo wind up

Not that I have seen.
by Goldfinger
Sat Sep 02, 2023 11:25 am
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

RX: Change C132, C99 to 1uF non-polarized change C154 to a 2.2uF non-polarized Change C167 to a 1000uF, 25V electrolytic. Observe Polarity Change C176 to a 1000uF, 25V electrolytic. Observe Polarity TX: Change C152, C154 to 1uF or 2.2uF non-polarized. Since this radio has a mod transformer and I've...
by Goldfinger
Wed Aug 30, 2023 5:53 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

Hey bro, I went and picked up my SAMS, I'll get the full HIFI info up soon!
by Goldfinger
Mon Aug 21, 2023 1:43 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

Though it might be a little cleaner it's the same as the CBTricks scan as in half of the schematic is missing.

I'm supposed to be going over to Sanchez's house to work on his radio in a couple weeks. I can grab my SAMS then because they are stored in his shop.
by Goldfinger
Sat Aug 19, 2023 12:13 pm
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

The schematic on CBTricks is blurry and incomplete so it's unusable. Unfortunately my SAMS are buried in as storage facility 20 miles away and aren't handy.
If we can come up with a "Clean" scan of SAMS book 276 then I could post up the info.
by Goldfinger
Sat Aug 19, 2023 9:38 am
Forum: rx and tx mods
Topic: DAK MARK X 10
Replies: 21
Views: 727

Re: DAK MARK X 10

Gimme a day or two to stare at the CBTricks schematics and I'll get it posted..
by Goldfinger
Fri Aug 11, 2023 10:33 am
Forum: rx and tx mods
Topic: Vfo wind up
Replies: 35
Views: 14246

Re: Vfo wind up

If it's a DX model, VR8. It will only work if the clarifier is stock.
by Goldfinger
Fri Aug 11, 2023 10:25 am
Forum: rx and tx mods
Topic: DAK IX 9
Replies: 3
Views: 3143

Re: DAK IX 9

No, the DAK X has the sideband board in it.

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