Hy-Gain V (2795DX)

Joined: October 4th, 2015, 5:04 pm

June 11th, 2016, 6:07 pm #1

Ok... I picked this Hy-Gain V up the other week. It's a bit on the rough side. so I'm going for a full restoration.



The front panel bezel has been horribly painted with a garish, overly metallic and cheap looking paint... complete with overspray into the black areas.



The case is a disaster. Why do people not prep surfaces before spraying???



...not that it would have helped, as it's a million miles away from the factory finish, so this will be blasted back to bare steel and started again.

The front panel will be sanded down to bare plastic, and the front panel also... yes... I mean sanding off the satin black and lettering!

So what am I going to do to get it back?

I'm having a white water slide decal made, based on accurate artwork I've just created...

[imgw=500]http://i.imgur.com/in7MCPi.jpg[/imgw]
(image size edited by admin)

The black left hand panel, once surface prepped, will be sprayed in satin black, then the decals applied, and a very thick layer of non-shrink varnish applied. Once cured, it will be flattened back with 2400 wet and dry, then a final satin lacquer spray applied.

The silver will be resprayed the correct colour once the surface are prepped.

Same treatment for knobs of course.

Inside is not in bad shape...



...just done a full alignment... all is well. Modified the final bias circuit to cure the typical cybernet scratchy audo. Done the "thimping" squelch mod.

It has a broken VCO core as they always do (why do the chimps always break these things?) so a new one from Spectrum is on order. The VCO is actually perfectly adjusted, but it's still getting a new one.

Bleep reconnected and removed from the NB switch, and NB re-attached.

I'll post up updates as and when they happen.
Last edited by Nik Gnashers on June 12th, 2016, 6:35 am, edited 1 time in total.
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: January 2nd, 2011, 1:21 pm

June 11th, 2016, 8:49 pm #2

Crikey that's going to look good :thumb:
[marq=Left]STOP READING MY CRAP GO GET SOME DX DONE ![/marq]

[color=5a70b3]M0SRW[/color]
26-CT-747
IF YA NEIGHBOURS STILL TALK TO YOU GET A BIGGER ANTENNA !

Failure is not an option! BUT smashing it with a BIG hammer is :bash:

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Joined: October 4th, 2015, 5:04 pm

June 12th, 2016, 5:55 am #3

Fingers crossed.. yeah. The Hy-Gain V is a real memory lane radio for me. I have this one, and have just bagged a 4x50 band 8795 off Ebay too for £60 :)
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: July 9th, 2011, 4:48 pm

June 12th, 2016, 6:38 am #4

Nice one David,
My mate always loved his Hy-Gain radio's, and I was always a Ham Int. kinda guy. But, in 2016 I think the Hy-Gain stuff looks so much more retro so good luck with your restoration !
M6GFT ::: QRZ Page- http://www.qrz.com/db/M6GFT
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Joined: October 4th, 2015, 5:04 pm

June 12th, 2016, 7:17 am #5

I love them Nick. They get bad rep, as do a great deal of Cybernet rigs. I admit, they're not as good on TX as Uniden based stuff, but the PTBM121D4X board, set up well is a great receiver.. and if you can't hear them, you can't work them :)

The bad rep for TX is entirely justified, but easily rectified. A simple modification to the final bias(Changing two resistors) cleans up the scratchy audio on SSB completely to the point where it sounds as good as any other CB radio. The boxed in, quiet FM audio is also rectified with a simple resistor change. The VCO is a pile of crap, but Spectrum Communications make a replacement VCO for £7.50 that will also allow wide banding if desired. Basically... dealt with correctly, the PTBM121D4X is a fantastic board, as is the PTBM125A4X and PTBM131A4X, which depending on what model of High Gain V you have, it will have one of these three boards.

Info for readers and anyone researching (please feel free to correct and amend - all knowledge is good knowledge for these old radios:

2705 - 40ch only. RX Clarifier only *Labelled Hy-Gain V AFS on front panel. Very, very rare!!

2795 - 3x40 (26.515 to 27.855) no TX KC Shift - just RX clarifier. PTBM125A4X board

2795 - 2x40ch. As above, but 80ch.. also very rare. PTBM125A4X

2795DX - 3x40 (26.515 to 27.855) Separate KC shift and RX clarifier. PTBM125A4X board

8795. 2 versions. One was 5x40 (very rare), and one was 4x50 channels. As above regarding TX/RX clarifier, but has addition of CW mode, and switch-able bleep (labelled "ST.PEE" on the front panel). Boards were PTBM125A4X/PTBM131A4X depending on model. Does not have the "pee-wit" bleep, but the same single bleep as the Superstar 2K (Same board).

Maybe that will help someone.... somewhere :)
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: October 4th, 2015, 5:04 pm

June 18th, 2016, 7:58 pm #6

Doing some more work on the 2795DX.

After inspecting the paint, I've opted for stripping rather than blasting. Less aggressive.

Applying some evil, foul smelling paint striper to remove the 36 year old paint, and about 4 layers of other assorted cellulose spray paint other idiots have applied over the years.



20 minutes later.... a test scrape.. looking good.



A further 20 minutes and after a rinse... most of it gone.




It's having another soak to remove the last, stubborn bits and pieces and get as much bare metal showing before a final rinse and dry.

Back soon.
Last edited by Pook on June 18th, 2016, 8:00 pm, edited 1 time in total.
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: October 4th, 2015, 5:04 pm

June 18th, 2016, 8:03 pm #7

Just noticed an error in the post about versions further up.

Should read:



2795 - 3x40 (26.515 to 27.855) no TX KC Shift - just RX clarifier. PTBM121D4X board

2795 - 2x40ch. As above, but 80ch.. also very rare. PTBM121D4X board.

2795DX - 3x40 (26.515 to 27.855) Separate KC shift and RX clarifier. PTBM121D4X board
Last edited by Pook on June 18th, 2016, 8:03 pm, edited 1 time in total.
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: October 4th, 2015, 5:04 pm

June 18th, 2016, 9:53 pm #8

Top cover as stripped as it will get. Just needs a light sanding with 1200 grade wet and dry to flatten it ready for priming. Now I know the paint stripper works well, I'll do the bottom cover tomorrow.

CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: October 4th, 2015, 5:04 pm

June 19th, 2016, 7:30 pm #9

The back panel was a complete mess.. red rusty and the black of the serial number rubbed off to silver. It was also severely dented where the rig had been dropped in it's ass at some point.

Anodised finish was gone for good.. so brushed steel and lacquered it is... until I can find a nice replacement.

Last edited by Pook on June 19th, 2016, 7:31 pm, edited 1 time in total.
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


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Joined: October 4th, 2015, 5:04 pm

June 19th, 2016, 7:59 pm #10

Final decal artwork as sent to the printers. (actual size). The decals will be white on clear.

Last edited by Pook on June 19th, 2016, 8:02 pm, edited 3 times in total.
CB, 11 Metres, Ham Radio... it's all radio, so stop fighting about it.


https://www.qrz.com/db/G0SLV
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