[Hallicrafters] SR-2000 HV tick

[Rodger]

These ticks can sometime be a combination of mechanical and electrical 
causes.  I remember reading years ago about a TV set manufacturer who 
was deluged with complaints about a ticking sound coming from their 
sets.  It was due to a HV warning tag which was tied with string to part 
of the chassis and hung near the CRT, apparently the tag would begin to 
build up a static charge and once enough charge built up it was 
attracted to the HV cage where it would cause an audible tick, 
discharge, and begin the cycle again.  Apparently the average was about 
4 seconds, perhaps the design engineer later went to work for Halli....

Rodger WQ9E

Roy Morgan wrote:
> At 12:07 PM 4/13/2007, Jim Liles wrote:
>> Good afternoon to all:
>> Have been chasing a highly intermittent quirk in the SR-2000 for 
>> years.  When you turn the high voltage on, it has an audio tick about 
>> every 3 seconds and when the high voltage is on, it ticks more 
>> frequently.
>
> Jim,
>
> I assume you mean an "audible" tick, or click - that you can hear. 
> (Not a sound heard in the transmitted signal).
>
> Take as much cabinetry off as you can  without causing it to cease, 
> and fire the thing up IN THE DARK. Then watch for little sparks.
>
> You may have a more or less regular spark or high voltage arc of small 
> size some where.
>
> If you find it, the cure may well be
>  - CLEAN, clean, clean. Remove dust, oil, dirt, and the rest.
>  - A bit of Corona Dope. General Cement still makes it in red and black.
>
> (These tips are from the Collins Collectors Quarterly special issue 
> Volume 1, Issue 4, Spring 1992, entitled "KWS-1 -  The care and 
> feeding and other trivia" by Bill Carns, N7OTQ)
>
> Roy
>
> - Roy Morgan, K1LKY since 1959 - Keep 'em Glowing
> 13033 Downey Mill Road, Lovettsville, VA 20180
> Phone 540-822-5911   Cell 301-928-7794
> Work: Voice: 301-975-3254,  Fax: 301-975-6097
> roy.morgan at nist.gov -- 
>
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