Thanks for the replies - some useful amps noted. I'd like to find
something that could be used up to 500kHz but I guess an audio amp
that performs up to that frequency is likely to be a rare beast. I
will probably have to make up something from discrete components- no
great task but a packaged small amp would be more convenient.
73
Dave, ZL3FJ
----- Original Message -----
From: "Lubos OK2BVG" <bvgbob@hotmail.com>
To: "_RSGB_LF" <rsgb_lf_group@blacksheep.org>
Sent: Thursday, July 22, 2010 4:46 AM
Subject: RE: LF: audio amps for LF driver service
Hello Dave!I use a stereo amp TDA7057AQ in my 137kHz driver. 12V .....
power 7W15V ..... power 12W
It is good up to 300kHz.
Bob, OK2BVG, (beacon OK0EMW)
**************************
From: tractorb@ihug.co.nz
To: rsgb_lf_group@blacksheep.org
Date: Wed, 21 Jul 2010 22:58:30 +1200
Subject: LF: audio amps for LF driver service
I've seen comments here from time to time about various audio power
amps being used for low power tx purposes - any suggestions as to
whats a useful one for 136 up to 500 kHz at the 5 watt level or
thereabouts?
73
Dave, ZL3FJ
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