[NLRS] Search for MGF1302

[Dr. Gerald N. Johnson]

Franco Rota's web page 
http://www.rfmicrowave.it/catalogue_file.php?file=C.pdf&action=v&lang=eng&pos=2
shows some 1302 and suggested replacements. He reommends the MGF4919 
also. Here are some of the collected posts on the 1302. I recall one 
post saying the MGF9302 was the same device in a different package. And 
the original poster pointed out he need long leads to go through the PCB 
board for the source connections. There are a few of each on epay at the 
moment, not necessarily at great prices though. And I'm sure shipping 
and paying in Euro won't be too cheap either. I may have had one that I 
removed from my 10G transverter. It was either biased wrong or nearly 
shorted. Seems like the resistance checks changed after I did them a few 
times so I expect I destroyed it. I know the MGA86576 performs beter 
than the misapplied 1302.

73, Jerry, K0CQ
>
>
> At 11:21 AM 1/24/2012 -0600, you wrote:
>> Last September DL3IAE sent me this:
>>> Jerry,
>>>
>>> the GaAsFET marked Ar is an MGF1302. I replaced mine with an MGF4919 (Ebay 1 EURO) in the 10 GHz transverter. Works perfect, NF sub 1 dB, no oscillation.
>>> I have an old DB6NT type transverter from '91.
>>>
>>> http://www.mrs.bt.co.uk/dubus/9101-1.pdf
>>>
>>> gl
>>>
>>> Daniel
>>> DL3IAE
>>
>> Compare the data sheets for a start, and look to Franco Rota for more replacement possibilities or even MGF 1302. www.rfmicrowave.it Look in his catalog section C. My downloaded version shows MGF1302 in quantity.
>>
>> Mouser and DigiKey carry modern Avago devices. DigiKey carries RFMD products also. Look at the NLB-310 for an untuned 50 ohm in and out gain stage good for 10 mw. About 10 dB gain from 5 to 12 GHz. ERA devices work well at 5.6 GHz too.
>>
>> 73, Jerry, K0CQ
>>
>>
>> On 1/24/2012 10:03 AM, Joe wrote:
>>> Hello to the Group,
>>>
>>> Does anyone know of where I can get a MGF 1302 transistor or an
>>> equivalent. I was told this item has been obsolete for many years now.
>>> Perhaps somebody may still have one in their parts bins.
>>>
>>> I have an older model DB6NT 5.760 LO Osc and multiplier unit in a tin
>>> box tuned to 5616 MHz. The last driver stage is shorted.
>>>
>>> I'm thinking about re-xtaling it as a beacon unit for on the 5.7 Band.
>>>
>>> Perhaps I am wasting my time on this unit and should look for something
>>> else that is newer.
>>>
>>> This item was a freebe and thought it would make a nice low power beacon
>>> TX.
>>>
>>> 73's
>>> Thanks
>>> Joe
>>> WA3PTV
>>> FM19bs
>>>
>> _______________________________________________




On 2/4/2012 12:13 PM, cqbilld at q.com wrote:
>
>
>
> Just a couple of weeks ago I saw someone on the mw reflector looking for MGF1302s ... I should have read the postings. Something (I have no real idea what) killed my 2m preamp this week. I was working HF with the TS2000 normally used for 2m and I was using CW breakin keying while working HK0NA DXpedition . This CAN NOT be done on 2m when using the preamp, because the 2m sequencer is not activated by the breakin keying. I have no idea at all ... but when I went to 2m last night with the breakin keying turned off, I found the 2m preamp was DOA. VERY ODD ....
>
> Anyway ... RF Parts list the MGF1302s at $11.95@ ($25 minimum) ... So I have a source, of sorts ... Anyone have "surplus" that you would be willing to SELL? I hope I don't need 3 at $36 plus shipping! It seems every couple of years .. something occurs and one of the preamps get zapped.
>
> An aside ... anyone know of a drop in replacement? These where/are wonderful devices .
>
> Yes I was successful working HK0NA, on several bands ... what a great ran DXpedition that was!
>
> THANKS Bill K0AWU
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