[Boatanchors] [Hammarlund] SP-600

[Al Parker]

Hi folks,
    Yes, that's a good area to check.  There's a bypass cap right at that 
switch on the back of the RF deck, under the chassis.  If you've still got 
BBOD's in there, that's a likely suspect, it's happened to me.
    If it's ser. no. is below abt 17,500 it's got BBOD's in there, about 55 
of them, and they should all be replaced.  I've just lost all my incoming 
emails from mid-May to noon today, so can't look back to your previous posts 
to see what you've done.
73,
Al, W8UT
New Bern, NC
www.boatanchors.org
www.hammarlund.info

"there is nothing -absolutely nothing- half as much worth doing as simply 
messing about in boats."
   Ratty, to Mole


----- Original Message ----- 
From: <kirklandb at sympatico.ca>
To: <tvcomlguy at aol.com>; <boatanchors at mailman.qth.net>; 
<hammarlund at mailman.qth.net>
Sent: Monday, November 23, 2009 6:37 PM
Subject: Re: [Hammarlund] SP-600


>
> at some point, the RF deck uses a 3.5MHz sh IF.  I believe that this is 
> controlled
> by the switch at the bottom/back of the RF deck
> a) check that this switch is working properly
> b) check the 3.5 IF section - if memory serves me right, there is a 3.5 
> MHz crystal
>    buried in the shielded can  which is in the bottom of the unit
>
>
>
>
>> From: TVComlGuy at aol.com
>> Date: Mon, 23 Nov 2009 17:06:20 -0500
>> To: boatanchors at mailman.qth.net; hammarlund at mailman.qth.net
>> Subject: [Hammarlund] SP-600
>>
>> Thanks to every one who helped me with the wiring on my SP-600 crystal
>> frequency unit.  I got that up and running, but now I find that all bands
>> above 3.45 mc are dead.  Any ideas would be appreciated.
>>
>> 73//Ron, KB0WAR
>>
>>
>>
>> "The TV business is a cruel and shallow money trench,
>> a long  plastic hallway where thieves and pimps run free,
>> and good men die like  dogs." Hunter Thompson
>>
>> "There's also a negative side." Ron Hinze
>>
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