Hi,
have a look at JUMA TX136/500
This circuit, handling 60 Watts, can easily duplicated.( or bought ) See
http://www.nikkemedia.fi/juma/
Uwe, dk1kq
----- Original Message -----
From: "Dave Brown" <[email protected]>
To: <[email protected]>
Sent: Friday, July 23, 2010 11:44 AM
Subject: Re: LF: audio amps for LF driver service
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" <[email protected]>
To: "_RSGB_LF" <[email protected]>
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: [email protected]
To: [email protected]
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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