[Amps] LDMOS availability

Tue Jun 6 18:29:53 EDT 2017

Kevin you DON'T get it at all.

You could not be MORE wrong, I DO love solid state. I have repaired more 
solid state amps than tube and I bet way more than you have repaired. IT is 
just that everything that I said is true and I love the truth. It appears 
that you can't handle the truth by the fact that you make things up that you 
don't know a thing about.

By the way your statements about "only a few years" just makes my point for 
me, no history with them. What is it that you fail to get about lack of 
history?

-----Original Message----- 
From: Kevin Stover, AC0H
Sent: Tuesday, June 06, 2017 18:16
To: amps at contesting.com
Subject: Re: [Amps] LDMOS availability

OK, name some 1400W solid state devices and they're first date of
manufacture. Seems to me they didn't exist until a few years ago.

You don't like solid state....we get it.
People didn't like cars and tractors much when they drove horses out to
pasture either.

On 6/5/2017 9:54 PM, w8hw at comcast.net wrote:
> Larry,
>
> You made and proved my point for me. The transistor you mention is NOT an 
> 1400 watt class (as I specified in the email) in fact your transistor is 
> not even close, it is closer to 140 watt out (if memory serves) That makes 
> your statement off by a factor of 10. You asked me to be careful, I was 
> very carful to specify 1400 watt class in my email.
>
> Thank you , Bruce, W8HW
> ====================
>
> -----Original Message----- From: Larry Benko
> Sent: Monday, June 05, 2017 20:40
> To: amps at contesting.com
> Subject: Re: [Amps] LDMOS availability
>
> Bruce,
>
> The MRF-150 came out in 1983/84 and Helge Granberg produced the Motorola
> app not EB-104 using the XRF-150 in the same year.  It is still readily
> available.  Be careful with your FACTS!
>
> Larry, W0QE
>
>
> On 6/5/2017 5:12 PM, w8hw at comcast.net wrote:
>> Actually you do NOT have your crystal ball to predict the future so your 
>> statement is NOT based in fact, only an opinion. I prefer to go with 
>> facts, so hear we go.
>>
>> FACT... Because we can not see into the future, we only have history to 
>> look at.
>>
>> FACT... History has shown us that RF power devices have NOT survived 15 
>> years of manufacture very well... IN FACT... I challenge you to show me 
>> the facts. Show me a solid state RF transistor in that power class (RF 
>> 1400 watts out) that has been in production for 15 years and is still in 
>> production today. I am open minded and would love to see your report.
>>
>> FACT... I noticed that you did not mention if they agree to the $100k 
>> Guarantee. Why is that important, see below.
>>
>> FACT... If they are sure that they will keep production going until the 
>> year 2032 (15 years), then that guarantee should BE NO PROBLEM for them. 
>> Talk is cheep
>>
>> FACT... If you feel that is an unfair request, then that tells us that 
>> (Deep down) you do not believe them either. Please do not tell me that 
>> you DO have a crystal ball.
>>
>> FACT... Many high power tubes (8877 and 3-500) do have a rich 40+ year 
>> history with no end in sight.
>>
>> FACT... I have purchased the BLF188 because I CAN afford both the cost 
>> and the risk. However people who can not afford the cost and risk may 
>> wish to take this into consideration.
>>
>> FACT... I have been in the RF repair industry since 1971 and have seen 
>> and faced this issue happen over and over again. How long have you been 
>> in it???
>>
>> 73, Bruce, W8HW
>> ============================
>>
>> -----Original Message----- From: Per Molund
>> Sent: Monday, June 05, 2017 14:55
>> To: w8hw at comcast.net ; amps at contesting.com ; Tom Thompson
>> Subject: Re: [Amps] LDMOS availability
>>
>> Actually they have put it in writing, on the data sheet (although
>> prelimenary at the moment) they state 'Included in NXP product
>> longevity program with assured supply for a minimum of 15 years after
>> launch' which I see as a quite firm commitment. Or do You have an
>> example that NXP has not fullfilled their 'longevity program'
>> commitment for some components?
>>
>> 73 de LA9XKA - Per
>>
>>
>> At 19:08 05.06.2017, w8hw at comcast.net wrote:
>>> Talk is cheep. Ask them if they will put that in writing? Also ask if 
>>> they will put a penalty clause stating they will give you a $100k 
>>> payment should they fail the 15 year test. After all if it was true, 
>>> they should have no problems with that. On the other hand if they baulk 
>>> , that tells you that they are just talk with no truth. Additionally, 
>>> Please be honest... If you are reluctant to ask them for that guarantee, 
>>> that shows that you KNOW they are just talk. Someone or Anyone let me 
>>> know if anyone gets that guarantee.
>>>
>>> Remember company plans do change with new management or when they get a 
>>> bad P&L. This is especially true if they are listed on any exchange such 
>>> as NASDAQ. Like the dip in early 2016 (NXPI at $65) and now back on a 
>>> good clime this year ($109.00) now. companies tend to make strong claims 
>>> on the peek and pull claims back claims on the stock dip. Often they 
>>> have no choice. The device market history is the only good indicator. 
>>> Solid State RF power devices still have a very poor history. 
>>> Translation... the market speaks with authority, companies just talk.
>>>
>>> I have a solid state amp (dual BLF188) homebrew amp, and have two (2) 
>>> tube amps one of which is AL-1500 with 8877 tube. I love them all, but 
>>> understand the risk of SS replacement as I have been in broadcasting or 
>>> the RF repair business since 1971 and a Ham since 1962. I have lived 
>>> through everything that I have said above.
>>>
>>> 73, Bruce, W8HW
>>> ============================
>>
>>> -----Original Message----- From: Tom Thompson
>>> Sent: Monday, June 05, 2017 11:18
>>> To: amps at contesting.com
>>> Subject: [Amps] LDMOS availability
>>>
>>> I recently took part in a webinar on the new, 1800 watt, 65 volt, LDMOS
>>> transistors made by NXP.  It is the MRFX1K80, and NXP plans to produce
>>> it for at least 15 years.
>>>
>>> Tom   W0IVJ
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>>>
>>>
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>>
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-- 
R. Kevin Stover    AC0H
FISTS #11993
SKCC #215
NAQCC #3441
ARRL
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