[Heathkit] SB-220

[Jim Shorney]

Just guessing, but possibly one or more of these reasons:

1. The resistor will open more quickly in the event of a fault
2. Easier to place in the space available
3. Less series inductance than some fuses
4. The resistors adds a little degeneration to the grid circuit

Any other guesses are welcome.

73

-Jim
NU0C

On Sat, 1 Feb 2014 13:13:44 +0000 (UTC), Rick Poole WA1RKT wrote:

>From: "Jim Shorney" <jshorney at inebraska.com>
>Sent: Friday, January 31, 2014 11:34:50 PM
>>>
>>> Some people advocate grounding the grid through a
>>> small value (33 Ohms or thereabouts) resistor to
>>> act as a grid "fuse" in parallel wiih a bypass cap.
>
>I've asked before, and gotten no direct response... if one is going to do that, why not just put an appropriately-rated fuse in there?
>
>Rick WA1RKT

--
The universe we're in will reach absolute zero in three hours. Safe is relative. - Idris, "The Doctor's Wife"