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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+audio\s+amps\s+for\s+LF\s+driver\s+service\s*$/: 5 ]

Total 5 documents matching your query.

1. RE: LF: audio amps for LF driver service (score: 1): Author: Lubos OK2BVG <[email protected]>; Date: Wed, 21 Jul 2010 18:46:56 +0200; Hello Dave! I use a stereo amp TDA7057AQ in my 137kHz driver. 12V ..... power 7W 15V ..... power 12W It is good up to 300kHz. Bob, OK2BVG, (beacon OK0EMW) ** > From: [email protected] > To: rsgb_lf; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-07/msg00031.html (9,845 bytes)
2. Re: LF: audio amps for LF driver service (score: 1): Author: John Andrews <[email protected]>; Date: Wed, 21 Jul 2010 07:36:05 -0400; Dave, I had good luck with the LM2876 at 136 and 185 kHz: http://www.w1tag.com/5watt.htm But it's useless at 500 kHz. John, W1TAG 73 Dave, ZL3FJ No virus found in this incoming message. Checked by AV; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-07/msg00113.html (9,490 bytes)
3. Re: LF: audio amps for LF driver service (score: 1): Author: "Dave Brown" <[email protected]>; Date: Fri, 23 Jul 2010 21:44:45 +1200; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-07/msg00379.html (10,440 bytes)
4. LF: audio amps for LF driver service (score: 1): Author: "Dave Brown" <[email protected]>; Date: Wed, 21 Jul 2010 22:58:30 +1200; 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 t; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-07/msg00412.html (8,497 bytes)
5. Re: LF: audio amps for LF driver service (score: 1): Author: "Uwe Wensauer" <[email protected]>; Date: Fri, 23 Jul 2010 12:09:13 +0200; 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 Thanks for the replies - some useful amps noted. I; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-07/msg00458.html (11,115 bytes)

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