[Heathkit] SB-630 timer problem

[Stephanie WX3K]

It is always a good idea to replace capacitors in these old heathkits.

Stephanie WX3K

> On Nov 13, 2015, at 7:02 PM, Alexander N. Gerli <ac1wye at gmail.com> wrote:
> 
> Hi, folks!  I have a nice SB-630 Console with a timer problem. When
> switching from OFF to VISUAL, the two bulbs illuminate the "IDENTIFY" panel
> and do NOT go off when the RESET button is pressed. When switched to AURAL,
> the bulbs and the buzzer go on steadily. Seems as though there is either a
> problem in the timer circuit or perhaps the relay was miswired.
> 
> So far, after close inspection, the relay IS wired correctly. Two tube subs
> for the OA2 and the 6EW6 make no difference. Reset the Coarse and Fine
> timer pots to center, no difference either. I see no shorts anywhere in the
> wiring and the TIMER switch is wired correctly. I also note that when the
> RESET button is pressed, the little NE2 neon bulb fires briefly as it is
> supposed to do according to the theory of operation.
> 
> I'm puzzled! This is not my first '630, but my last one was perfect in
> every way and I never gave it a second thought. Now I wish I hadn't sold it
> last year, HI.
> 
> This can't be impossible to figure out. The ICOD section isn't much help
> for this symptom.
> 
> ​Any thoughts or suggestions? Thanks and 73,​
> 
> 
> ​Sandy AC1Y​
> 
> 
> Alexander N. Gerli, Sr.
> 548 Allred Mill Road
> Mount Airy, NC 27030-2202
> 
> Scotsmen walk about 900 miles each year.
> A Scotsman drinks around 45 gallons of Whisky a year.
> Scotsmen get about 20 Miles Per Gallon.
> ______________________________________________________________
> Heathkit mailing list
> Home: http://mailman.qth.net/mailman/listinfo/heathkit
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Heathkit at mailman.qth.net
> 
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
> 
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html