[Kenwood] TS830 and aging question

[Luis E Aguilar]

It should always be mentioned the discharging of capacitors.

Can someone provide the procedure to discharge thingies (technical term) 
on this rig before working on it?

I don't dare change the tubes on my 520 or 830 I am so frightened  by 
any hidden  high voltages,

I have seen a good ham friend fly across  a room when working on a tube 
amp by accidentally touching a charged cap, poor guy I still remember 
the look on his face after 20 years.

Lou


 


Tim Tuck wrote:
> John Geiger wrote:
>> I have a chance to pick up a Kenwood TS830 from
>> another local ham, and this is one radio I have always
>> wanted to try. I played with it briefly and it seems
>> to be transmitting and receiving alright, and appears
>> to have the 270hz CW filter installed.
>>
>> Is there any specific age related problems to look for
>> in a TS830, or any problems I can expect to have to
>> deal with in the near future?  I realize that this is
>> a 25 year old radio but it sure does sound nice!
>>
>>   
> Hi John,
>
> Beautiful radio! had one for years before I traded up to a TS-850 :)
>
> Now.... there is a few age related things to be aware off.
>
> 1.. Open the bottom of the rig and resold all the pins on the 3 tube 
> sockets. These fracture over time from the heat of the bottles 
> conducting down through the pins.
>
> 2. The band switch has plastic cogs with chains to drive the tuning 
> cap. Check them, they can become brittle and loose.
>
> 3. The band switch wafers gather dirt and grease so give them a clean 
> too.
>
> 4. Check the plate clamps on both output tubes to ensure that they are 
> still tight.
>
> 5. If the power output is low you might need new tubes, don't forget 
> to get a matched pair and do the neutralizing procedures.
>
> 6. It will probably need a realignment after all this time, let it 
> warm up for 30mins before doing any alignment.
>
> 7. Give it a vacuum its probably full of dust !
>
> 8. Enjoy your "new" radio :)
>
> cheers
>
> Tim
>