[sdiy] FET for VCO cap discharge

[Magnus Danielson]

From: Don Tillman <don at till.com>
Subject: Re: [sdiy] FET for VCO cap discharge
Date: 23 Oct 2005 11:11:11 -0700
Message-ID: <m2u0f8cdds.fsf at till.com>

>    > From: "JH." <jhaible at debitel.net>
>    > Date: Sat, 22 Oct 2005 15:55:52 +0200
>    > 
>    > This is quite a demand on the discharge transistor, considering I
>    > wanted a JFET.
> 
> Hi JH,
> 
> This sounds like a perfect application for a VFET (power FET).
> They're inexpensive, available in small packages, and can discharge
> amperes through a fraction of an ohm.
> 
> Yeah, you will need to drive it a little differently.

Indeed, that has certainly changed alot since the 70thies. The speed has also
improved.

Cheers,
Magnus