[Collins] 75S-3 Tubes
Jerry Kincade
[email protected]
Tue, 05 Feb 2002 17:40:23 -0800
Hmmm. By coincidence, I'm messing with a Johnson Challenger that uses the
6DS5 (listed as an audio tube in the RCA manual) as the oscillator/buffer
stage. First time I'd run into one. It runs with 320V on the plate in the
Challenger application.
73, Jerry W5KP
----- Original Message -----
From: "Dr. Gerald N. Johnson, electrical engineer" <[email protected]>
To: "W2WU" <[email protected]>
Cc: "Tony Sokol" <[email protected]>; "Mike, K8LH"
<[email protected]>; <[email protected]>
Sent: Tuesday, February 05, 2002 11:13 AM
Subject: Re: [Collins] 75S-3 Tubes
> I don't see a 6DS6 in my RCA tube manual. I do see a 6DS5. Has the same
> pin connections as a 6BF5 and 6AQ5. Has lower heater current so wouldn't
> be happy in a mobile installation. Appears to be planning on higher
> plate voltage but the same bias and plate current. I'm sure there are a
> lot of 75S running 6AQ5 in the audio output socket. Just because they
> are were a lot more commonly stocked than 6BF5 or 6DS5.
>
> 73, Jerry, K0CQ
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