AM/SSB CB WAGNER MODEL-309 SCHEMATIC WANTED

[krex37]

Hi!
I have got some old and broken CB radio - WAGNER from a friend of mine and would like to fix it.
I don't know much about this product (found a few pictures only)
Suzuki 88 - El tema no es válido o ha sido eliminado ... n-consejo/

CB-WAGNER-309.jpg (44.63 KiB) Viewed 14831 times

WAGNER-309.jpg (39.71 KiB) Viewed 14833 times

WAGNER-REAR.jpg (40.78 KiB) Viewed 14831 times

WAGNER-BOX.jpg (33.83 KiB) Viewed 14822 times

and can't find anything else about it.
Does anyone have or can tell where can I find schematic or anything about this 27MHz CB AM/SSB WAGNER MODEL-309???
Please help!?!
Please replay on my e-mail:
krex37@yahoo.com
Thank you!
9A6TAR

[lbcomms]

Hi,
These were also made as a "Super Jaguar" and also as a Ferris SSB (possibly model SSB6000?).
I have a circuit here somewhere, but after 20 years it's probably not too readable / scanable.

This chassis is a good contender for the worst SSB radio of all time, so you'll have to be keen to want to fix it.
The main problem was the mode switch - rated at 0.5A, but carrying the full current of the output stage
The replacement part was unobtainable when they were new, good luck getting one now...

They had numerous other problems - wax from the synth melted into the speaker, cr*p zener regulation that failed and took out the NEC PLL IC, crystals that went open circuit, varactors that went short, and lots of shorted/leaky electrolytic capacitor problems. After they had been out for about a year, we refused to repair them, they were a certainty to come back with more problems. Even when they were working, they never sounded right on SSB, and were unusable as a base station because of really bad adjacent channel rejection caused by VCO phase noise and lousy filters.

Let us know if you want to persevere with it, and I'll see if I still have the diagram.

Cheers

[krex37]

Hi!
Finally replay! THANK YOU VERY MUCH!
Well...yes, of course, I want to persevere with it! I'll be keen - don't worry - have to be.
Let me explain. In Croatia (where I live) you can't just go in to a shop and buy some TX/RX Radio because there are no such stores for amateur radio equipment. OK, there is one - KENWOOD, but they are much too expensive so I can't afford, and they don't have CB radios. So I was happy when I have got this even broken WAGNER radio from friend of my.
And now I am happier even more when you replayed on my post with positive news.
Please, if is not to big problem for you, can you please try to find and send me schematic?
Hope it will be readable / scanable
Thank you in advanced!

Whishing you all the best! Greetings from Croatia - Europe!
God bless you and your family!
9A6TAR
~ Kresimir

[lbcomms]

Hi,
I found the circuit, and time has not been good to it - very faded and lots of old repairs with stick tape, the gum from the tape has soaked into the paper leaving inch-wide dark brown lines all across it.
I'll have a go at scanning it on the weekend, but I don't think it will be pretty...

Before I go to that trouble:
1) Verify that the supply to the PLL is OK (no more than 5.1V). If it's in the 5.5 to 7 volt range, your synthesier circuit is toast.
You couldn't buy the parts when it was new, I don't fancy your chances of getting parts now, except from a junked identical radio (highly unlikely).

2) Verify the mode switch is OK. Find the transmit final (usually a 2SC1969) and measure the voltage on the metal tab on the top of it, while on dead key transmit (i.e. mic button in with no audio). There should be, on the 4 modes:
PA: Zero volts
AM: Between 5 and 8 volts
USB: 12 to14 volts
LSB: 12 to14 volts
If you don't get these readings, the mode switch is toast.

I'll have a go at scanning it and cleaning it up a bit when you get back to me, it the above 2 checks are OK.
If either of the above are bad, then it's unlikely you'll be able to fix it without a good source of alternate components, and the technical knowhow to do "pimp my ride" style (in other words, at the harder end of the scale) component substitutions.

I have seen one that had been repaired - the usual synthesiser replaced with a serial PLL from a HR2510 and a PIC microcontroller to do the translation. It actually worked! Doing this would have needed mid to high skill levels in programming, hardware design, and PCB design/fabrication.

I'm not sure what your abilities are, or what equipment you have. You'll need, at the very least, a good CRO and a frequency counter, as well as an RF power meter - a capacitor ESR meter would also be useful for working on these "harder" rigs well known for electrolytic cap woes..

Cheers

[Otter]

I'm looking for a schematic for one of these too, and the sister rig the Sky Arrow Model-250. I'd love it if anyone could help with either or both. A circuit diagram in poor condition is better than none at all. If it's scanned at a decent resolution (600 dpi?) I can clean it up. Many Thanks.