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Re: LF: PA0RDT whip

To: <[email protected]>
Subject: Re: LF: PA0RDT whip
From: "Graham" <[email protected]>
Date: Tue, 8 Nov 2011 20:23:09 -0000
Importance: Normal
In-reply-to: <[email protected]>
References: <[email protected]> <op.v4forts4yzqh0k@pc-roelof> <[email protected]>
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SOT89 looks like it may mount but at 5GHz suspect it needs to be flat against the ground plane ?

G.

--------------------------------------------------
From: "Stewart Bryant" <[email protected]>
Sent: Tuesday, November 08, 2011 8:16 PM
To: <[email protected]>
Cc: "Roelof Bakker" <[email protected]>
Subject: Re: LF: PA0RDT whip


On 04/11/2011 18:10, Roelof Bakker wrote:
On an other note, instead of the trusty 2N5109 a BFQ19, a modern rf
transistor, can be used.
It gives slightly better IMD figures in this circuit, especial at lower
supply voltages.

73,
Roelof, pa0rdt


The only BFQ19s that I was able to source were SMT. Did you get them in another package?

Did you need to use a heatsink with this transistor?

73

Stewart/G3YSX








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