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#11
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RF Parts is nice because they tend to have stuff you can't get anywhere
else. HOWEVER, one caution ... if somebody else has it, somebody else will almost always be cheaper. Of course there are exceptions to prove the rule, but they are definitely the high-priced spread. Some of those modules do look like they are -exactly- what OP was looking for, tho. ... "Scott" wrote in message ... http://www.rfparts.com/ They have a ton of "brick" modules by Motorola, Mitsubishi, etc. These devices are the cat's a**! They basically need DC power and In/Out pins hooked up. As others mentioned, some are for FM/CW and some are linear (SSB, AM, etc.) Scott |
#12
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On Fri, 30 Apr 2004 06:56:11 GMT, Gregg wrote:
If you need that much gain, you're best off with an amp module from Motorola or someone. At VHF, 30mW in for 10W out will have serious stability problems if done discretely and if not layed out just perfect. Yeah, for simplicity the modules rule, but it's hardly in the spirit of homebrewing, is it? Whilst it's hardly a beginner's project, I don't see why anyone who knows what they're doing couldn't build one of these from discretes and have a lot of fun doing so. Where do you suppose most of these "serious stability problems" are going to arise? -- The BBC: licenced at public expense to spread lies. |
#13
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On Fri, 30 Apr 2004 06:56:11 GMT, Gregg wrote:
If you need that much gain, you're best off with an amp module from Motorola or someone. At VHF, 30mW in for 10W out will have serious stability problems if done discretely and if not layed out just perfect. Yeah, for simplicity the modules rule, but it's hardly in the spirit of homebrewing, is it? Whilst it's hardly a beginner's project, I don't see why anyone who knows what they're doing couldn't build one of these from discretes and have a lot of fun doing so. Where do you suppose most of these "serious stability problems" are going to arise? -- The BBC: licenced at public expense to spread lies. |
#14
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Behold, Paul Burridge signalled from keyed 4-1000A filament:
On Fri, 30 Apr 2004 06:56:11 GMT, Gregg wrote: If you need that much gain, you're best off with an amp module from Motorola or someone. At VHF, 30mW in for 10W out will have serious stability problems if done discretely and if not layed out just perfect. Yeah, for simplicity the modules rule, but it's hardly in the spirit of homebrewing, is it? Whilst it's hardly a beginner's project, I don't see why anyone who knows what they're doing couldn't build one of these from discretes and have a lot of fun doing so. Quite true! Where do you suppose most of these "serious stability problems" are going to arise? RF feedback between the stages is the biggest enemy. If it's well shielded and maybe a bit of neutralization, he should have no probs then :-) -- Gregg *It's probably useful, even if it can't be SPICE'd* http://geek.scorpiorising.ca |
#15
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Behold, Paul Burridge signalled from keyed 4-1000A filament:
On Fri, 30 Apr 2004 06:56:11 GMT, Gregg wrote: If you need that much gain, you're best off with an amp module from Motorola or someone. At VHF, 30mW in for 10W out will have serious stability problems if done discretely and if not layed out just perfect. Yeah, for simplicity the modules rule, but it's hardly in the spirit of homebrewing, is it? Whilst it's hardly a beginner's project, I don't see why anyone who knows what they're doing couldn't build one of these from discretes and have a lot of fun doing so. Quite true! Where do you suppose most of these "serious stability problems" are going to arise? RF feedback between the stages is the biggest enemy. If it's well shielded and maybe a bit of neutralization, he should have no probs then :-) -- Gregg *It's probably useful, even if it can't be SPICE'd* http://geek.scorpiorising.ca |