[NLRS] Instrumentation Amp Help

[tosca005 at umn.edu]

Any opinions on the GALI-84 or the GVA-84 ? They look like DC-6000 MHz 
monolithic amplifiers good for around 100 mW output and fairly simple 
support circuitry from the app notes on DigiKey's web site, but I know 
nothing else about them. And a price tag under $5 each in quantity of 1.

http://www.minicircuits.com/products/amplifiers_monolithic.html

John, W0JT

On Oct 24 2008, Donn Baker - WA2VOI/0 wrote:

> HI Zack. That's a shame, although not unexpected, as it was a real steal 
> at $40. Its still a good deal at $75, though. The active part, the 
> HELA-10B requires some other parts most notably the input and output 
> transformers. Its not a simple MMIC like the ERA or MAR series parts.
>
> Oh, well. At least I was smart enough (read, lucky) to get a couple when 
> I could.
>
>73 Donn
>WA2VOI/0
>
>----- Original Message ----- 
>From: "Zack Widup" <w9sz.zack at gmail.com>
>To: "Donn Baker - WA2VOI/0" <wa2voi at mninter.net>
>Sent: Friday, October 24, 2008 3:24 PM
>Subject: Re: [NLRS] Instrumentation Amp Help
>
>
>> Looks like the TB-17 has gone up in price. The Minicircuits website 
>> shows it at $75 now.
>>
>> Better might be the HELA-10B at $20 each.
>>
>> 73, Zack W9SZ
>>
>> On Fri, Oct 24, 2008 at 9:33 AM, Donn Baker - WA2VOI/0
>> <wa2voi at mninter.net>wrote:
>>
>>>
>>>
>>> 'Morning, Phil. Take a look at the Mini-Circuits TB-17, which is an 
>>> HELA-10 part, mounted on a board, with all parts needed to complete the 
>>> amplifer. +12 in, SMA in and out. When I bought the ones I have they 
>>> were $40 each. 1W out (forget the max input, but on the order of 10 
>>> mW), flat 50 MHz to 1000 MHz and usable to 1300 with reduced power 
>>> output. Without a doubt the best buy out there.
>>>
>>> Mini-Circuits web site should have all the data sheets, etc.
>>>
>>> 73 Donn
>>> WA2VOI/0
>>>
>>>
>>> ----- Original Message ----- From: "Phil Lefever" <plefever at isd.net>
>>> To: <nlrs at mailman.qth.net>
>>> Sent: Friday, October 24, 2008 6:24 AM
>>> Subject: [NLRS] Instrumentation Amp Help
>>>
>>>
>>>
>>>
>>>>
>>>> I'm wondering if anyone here could help with a project.
>>>>
>>>> I'm in need of some form of an amplifier that could take an input 
>>>> from a signal generator and increase that to something like a couple 
>>>> hundred milliwatts. The range of frequencies would ideally be from say 
>>>> 1 Mhz to the low microwaves, but from 50 to 500 Mhz would be usable. 
>>>> It would even be acceptable to split that range into the four amateur 
>>>> bands if need be.
>>>>
>>>> So for those more familiar with RF design then I, are there any 
>>>> components (like a MMIC) that could do this job fairly simply? The 
>>>> goals would be reasonable linearity and fairly flat frequency 
>>>> response. Several stages would be acceptable if needed.
>>>>
>>>> Thanks & 73,
>>>>
>>>> Phil Lefever, KB0NES
>>>>
>>>> _______________________________________________
>>>> NLRS mailing list
>>>> NLRS at mailman.qth.net
>>>> http://mailman.qth.net/mailman/listinfo/nlrs
>>>>
>>>
>>> _______________________________________________
>>> NLRS mailing list
>>> NLRS at mailman.qth.net
>>> http://mailman.qth.net/mailman/listinfo/nlrs
>>>
>> 
>
>_______________________________________________
>NLRS mailing list
>NLRS at mailman.qth.net
>http://mailman.qth.net/mailman/listinfo/nlrs
>