[Heathkit] SB-401 driver tube shield missing

[Steve Sutfin]

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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