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Re: LF: TDA2003, TDA2030 for PA?

To: [email protected]
Subject: Re: LF: TDA2003, TDA2030 for PA?
From: brian hodgson <[email protected]>
Date: Wed, 25 Mar 2009 07:16:11 -0700 (PDT)
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Hi Petr -
I use the TDA2030 as a pre-amplifier to produce a few watts in my 136 kHz linear PA. The spec implies that it should still have some useful gain at 500 kHz - I'll be most interested to hear how you get on.  
Regards - Brian (G3YKB)

--- On Wed, 25/3/09, Petr Malý <[email protected]> wrote:
From: Petr Malý <[email protected]>
Subject: LF: TDA2003, TDA2030 for PA?
To: [email protected]
Date: Wednesday, 25 March, 2009, 1:38 PM

Hi all,
My intention is to build a small transmitter up to some 10W for 136 and 505 kHz, this time not the D class, but B or AB class.
I think of employing AF amplifiers such as TDA2003, TDA2030, or similar. Of course, mainly 505 kHz is rather out of range so that nothing is guaranteed. This is why I ask before experimenting.
Did anybody try to use these for 136/505 kHz?
Tks, 73, Petr, OK!FIG

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