The same reason Heath used 33 Ohms on the SB-200/201. They are an attempt to
stabilize and also act as current limiters in case of nasty things trying to
happen. They often blow open during a run away. Both the Collins and the
Heath are marginally stable on 10/15M. The Collins more so.
Carl
KM1H
----- Original Message -----
From: <Gudguyham@aol.com>
To: <garyschafer@comcast.net>; <w8ji@w8ji.com>; <amps@contesting.com>
Sent: Tuesday, July 24, 2007 4:26 PM
Subject: Re: [Amps] Grounding the grids
>
> In a message dated 7/24/2007 1:10:53 P.M. Eastern Daylight Time,
> garyschafer@comcast.net writes:
>
> Why do you suppose that Collins put those little 47 ohm resistors in each
> grid on the 30L1 amplifier?
>
> 73
> Gary K4FMX
>
>
>
> So they can go POP when you cook em' Lou
>
>
>
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