[Heathkit] SB-401 driver tube shield missing

[Walt - WB2VSJ]

I just did a Google image search for the SB-401.  Found 3 photos with the
shield on the Driver, V9.  It looks to be the spring loaded type shield. 

Walt - WB2VSJ

-----Original Message-----
From: heathkit-bounces at mailman.qth.net
[mailto:heathkit-bounces at mailman.qth.net] On Behalf Of Steve Sutfin
Sent: Monday, December 23, 2013 18:13
To: Garey Barrell
Cc: Robert Myers; heathkit at mailman.qth.net
Subject: Re: [Heathkit] SB-401 driver tube shield missing

That's a good point. It reminded me that the 6GK6 driver in my Swan 350C is
treated the same. The tube socket has the flange for the shield and whether
it did or didn't come from the factory that way most say remove it since it
is a hot tube. On the other hand, I've read that if there is oscillation in
that stage it might be needed.
Steve k7dna

On Dec 23, 2013, at 12:42 PM, Garey Barrell wrote:

> Rob -
>
> You might want to check the manual for your radio before adding a 
> shield.  That is a hot tube and may have it's life shortened 
> considerably.  I don't know for sure in the 401, but the Drake TR-4 
> specifically does NOT use a shield,even though the shield base part is 
> there.  The extended ring of the base is all the shielding needed.  
> Worth checking!
>
> Garey - K4OAH
> Campton Hills, IL
>
>
>
>
> On Dec 23, 2013, at 11:39 AM, Steve Sutfin <stephoto at mind.net> wrote:
>
>> Give this a try.
>> http://www.ultrawebb.com/OHP/
>> Steve k7dna
>>
>> On Dec 23, 2013, at 12:42 AM, Robert Myers wrote:
>>
>>> Hi folks,
>>>
>>> I am missing the top portion of the tubular metal shield that was 
>>> used over V9, the 6CL6 driver, on my SB-401.
>>>
>>> The smaller bottom portion (to accept the bayonet mount top part) is 
>>> present and mounted properly on the chassis -- it's just the top 
>>> part that is AWOL.
>>>
>>> Can someone please tell me where I can get a replacement 6CL6 shield 
>>> that will fit properly into this bottom part?
>>>
>>> Cheers and Merry Christmas,
>>> --- Rob Myers
>>> VE3JQL
>>>
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