[Heathkit] Soft-Start circuit for SB-1000

[Dennis Younker NE6I]

Moderator, can we please stop the contest bashing.  

This is a Heathkit forum.

 

----- Original Message ----- 
From: "Bill Kuhn" <BKuhn at kuhngroup.com>
To: <heathkit at mailman.qth.net>
Sent: Sunday, November 29, 2009 10:19 AM
Subject: Re: [Heathkit] Soft-Start circuit for SB-1000


> Absolutely. I've shown my son what bad operation is like by listening to
> the contesters.
> 
> -----Original Message-----
> From: Carl [mailto:km1h at jeremy.mv.com] 
> Sent: Sunday, November 29, 2009 12:00 PM
> To: Bill Kuhn; heathkit at mailman.qth.net
> Subject: Re: [Heathkit] Soft-Start circuit for SB-1000
> 
> You should be able to get experience in those this weekend, its CQWW.
> 
> 
> ----- Original Message ----- 
> From: "Bill Kuhn" <BKuhn at kuhngroup.com>
> To: <heathkit at mailman.qth.net>
> Sent: Sunday, November 29, 2009 12:33 PM
> Subject: Re: [Heathkit] Soft-Start circuit for SB-1000
> 
> 
>> 
>> Or for operating using good Amateur Radio practices.
>> 
>> -----Original Message-----
>> From: Carl [mailto:km1h at jeremy.mv.com] 
>> Sent: Sunday, November 29, 2009 10:19 AM
>> To: Bill Kuhn; heathkit at mailman.qth.net
>> Subject: Re: [Heathkit] Soft-Start circuit for SB-1000
>> 
>> Sounds like a good amp for contests...............
>> 
>> 
>> 
>> 
>> ----- Original Message ----- 
>> From: "Bill Kuhn" <BKuhn at kuhngroup.com>
>> To: <heathkit at mailman.qth.net>
>> Sent: Sunday, November 29, 2009 10:28 AM
>> Subject: [Heathkit] Soft-Start circuit for SB-1000
>> 
>> 
>>> I've finally started work on cleaning up an SB-1000 I purchased from
>> an
>>> estate last spring.
>>> 
>>> 
>>> 
>>> The amp had a couple of home-made modifications - one I'm pretty sure
>> is
>>> a soft-start circuit and the other is ??? maybe a QSK circuit?? What
>>> appears to be a soft-start module looks to be fairly well
> constructed,
>>> but it is a breadboard so I'm assuming it is homemade. The other
>> circuit
>>> looks like a child got loose with a soldering iron, and has 2
> dangling
>>> leads that go nowhere. Because of that, I haven't even tried to power
>> it
>>> on. I think this also has a 10 meter mod.
>>> 
>>> 
>>> 
>>> My strategy is to pull out anything that doesn't match the
>>> manual/illustrations/schematic and bring this back to a base SB-1000
>> and
>>> see if it works. If the board that appears to be a soft-start is in
>> fact
>>> usable, I guess I should leave it. The other circuit is out.
>>> 
>>> 
>>> 
>>> To my question (finally)..
>>> 
>>> 
>>> 
>>> Is there a good schematic available of what a soft-start circuit
>> should
>>> be and how it should be connected in an SB-1000? I'd like to verify
>> what
>>> I have.
>>> 
>>> 
>>> 
>>> Thanks!
>>> 
>>> 
>>> 
>>> 73 DE NO0OO
>>> 
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