[TenTec] 579 / Century 22

[Bwana Bob]

Gary,

Look for low output on 80 meters. If it is low, there is a pot called 
"40 meter carrier null" on the oscillator/mixer/bandpass board. Use a 
'scope on the output with a dummy load and adjust for cleanest signal 
peak on 80 meters.

There is no SWR protection, so use a current-limited supply or fast 5A 
circuit breaker.  If not protected, finals will blow under high SWR.  
Check the condition of the on/off switch. Full current goes through the 
switch.  Check the condition of the dial pointer elastic cord.

Manual scans for the Century 22  are available online. I have one 
downloaded from Ten-Tec (before their web site went dark) and one 
downloaded elsewhere with a typed note by G3VTT with instructions on the 
driver and final bias settings. I can e-mail them to you if you need them.

  The Century 22 is a great rig, excellent for basic CW operation, QRP 
or up to 20W, or as a backup to the big rig. The receiver is really 
nice, very quiet and the audio filter takes out the neighborhood plasma 
TV and switching power supply buzz better than a noise blanker.

                        73,

                         Bob WB2VUF

On 3/12/2016 1:19 PM, Gary H. Harmon, Jr. wrote:
> I have a very nice 579 wrapped up in its original Ten-Tec shipping box.  Has
> the DC plug but no mike or manual.  I need to check it out before deciding
> if to sell or trade it.  Any things to watch for during start up?
>
>   
>
> 73,
>
>   
>
> Gary H. Harmon, Jr. - K5JWK - HAM Radio and ATARI Archaeologist
>
> 6003 Archwood
>
> San Antonio, TX 78239-1504
>
> 210.657.1549 h / 210.884.6926 c/t
>
> 210.657.1549 fax with prior notification
>
> gharmon at idworld.net
>
>   
>
> "Too many projects - Not enough time!"
>
> "Retirement = Every day is a Saturday except Sunday"
>
> http://www.grissomroadcoc.org
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>   
>
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