[AMRadio] Grounded grid amp

[Bernie Doran]

I recall 1625s also had the suppressor/beam forming plates connected to the 
cathode. one could cut into the base from the side and reconnect that lead 
to an unused pin. that would be a little difficult with internal connection.
----- Original Message ----- 
From: "Robert Nickels" <ranickel at comcast.net>
To: <amradio at mailman.qth.net>
Sent: Wednesday, January 26, 2011 12:14 PM
Subject: Re: [AMRadio] Grounded grid amp


> On 1/26/2011 11:03 AM, David Folger wrote:
>> he 6DQ5 is cheap and easy to come by.
> I love the 6DQ5, best SSB final tube made IMHO.   My GSB-1 and Swan 240
> amaze me with what a single DQ5 final will do - 150 watts PEP or more.
> Someone has posted a nice little class AB1 linear here:
> http://www.scribd.com/doc/39134100/Linear-100w-6dq5
>
> Unfortunately, the 6DQ5 won't do grounded-grid since the suppressor grid
> is internally connected to the cathode.
>
> 73, Bob W9RAN
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