[Kenwood] 599 twins

[Fortra]

Hi Martin,

welcome to the Kenwood twins club.
I have the service manual and will check the purpose and resonance freq.
of the trap mentioned.
Rubber belts were located in hobby shops where they sell small airplanes 
model, railroad stuff, small cars stuff etc... I even remember once there 
was a talk and a source of belts for early Kenwood radios.

Give me some more time and will bring the manuals home.

Best regards,
Kenwood "nut",
 S58DX Nermin
----- Original Message ----- 
From: "Martin Sole" <msole at loxinfo.co.th>
To: <Kenwood at mailman.qth.net>
Sent: Tuesday, October 10, 2006 7:31 AM
Subject: [Kenwood] 599 twins


>I like older radios and recently bought a pair of early 599 twins from a 
>friend. There are issues but nothing that has stopped me from enjoying them 
>so far. I have a couple of questions and would be interested to hear what 
>others think.
>
> The receiver is very nice but it does seem prone to overload. I have a 2 
> element quad at about 80 feet and we live in a very flat swampy area. 
> There are some nearby high power broadcast stations and even with an ICE 
> high pass filter I get some problems on 20 metres. The 20/40/60 attenuator 
> is a little too much so I am thinking about modifying it to be 6/12/18. 
> Anybody tried this? I have also learned that the squelch control, not 
> something I really need, can be re-wired as the RF gain control which is 
> located inside the set, good idea?
>
> I notice in the schematic that there are three traps in the RF circuit, A 
> seies trap, L1 & C1 and a parallel one, L2 & C2 on the input to the RF 
> amplifier together with another series trap, L4 & C13 on the output of the 
> first mixer. The manual makes no mention of these or what frequencies they 
> are supposed to stop, Any ideas? Image trap?
>
> For the transmitter I need a source for the rubber belts and I'm am 
> wondering about drilling the front panel to re-locate the mic gain and 
> carrier level controls. Is this likely to reduce the radios value? Are 
> they collector items? Mine is not by any means mint but it is very nice.
>
> I would also be interested in a silver speaker if anybody has one.
>
> I don't expect great things from these radios but they are fun and give 
> much pleasure.
>
> Thanks
> Martin, HS0ZED
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