[Yaesu] Re: Part for FT-100

[Paul S. Serio]

Gregory,
The service manual that I have is for the FT-100/FT-100D and both radios 
have the same transistor. I called Yaesu service today and asked if they 
had any suggestions as to who may have the transistor and they suggested 
RF Parts(this company was recommended by another reflector reader as 
well). A quick call to them revealed that they do not have it. If yours 
is still working 100% then now might be the time to unload it while they 
are still bringing good money.
Paul, N5PS
P.S. I also checked with AES and Burghardt's service department and they 
don't have any. They are both at a loss as to what to do about it too.

Gregory Andracke wrote:

>i've been reading the mail on this and wonder if it
>also applies to the FT100D?
>
>--- "Paul S. Serio" <pss at tecinfo.com> wrote:
>
>  
>
>>Bob,
>>Poor choice of words on my part. What I should have
>>said was that Yaesu
>>had no more of the transistors and would not be
>>getting any more. I had
>>not realized that the MRF166W was a 28 volt device
>>but I did verify that
>>with a quick look at the spec sheet. Also the SK701,
>>SK702 and BLF546,
>>BLF548 are too. I could not find the BLF549 listed
>>on Phillips site so it
>>too may be discontinued. In light of this info I
>>think that I will just
>>list the radio on eBay as a "tech special". One
>>might could get decent
>>power out of the BLF548 at 13.8 volts since at 28
>>volts it is rated at 160
>>watts out but then again you may not. I can't see
>>how the FT-100 series is
>>still bringing fairly decent money on the used
>>market with this bad news
>>hanging over its head. I guess in the future the rig
>>will be referred to
>>as a HF/6 meter rig with VHF/UHF receive capability.
>>Looked at in that
>>light the used price will probably settle somewhere
>>around $350 to $400
>>where the Alinco DX-70s are now. Oh well. Live and
>>learn. I was told as a
>>young man that those lessons learned the hard way
>>were the ones best
>>learned. 73
>>Paul, N5PS
>>
>>    
>>
>>>YAESU discontinued the RADIO, not the part!  
>>>      
>>>
>>YAESU had to stop
>>    
>>
>>>production
>>>of the FT-100 because MOTOROLA stopped making the 
>>>      
>>>
>>transistor!   (It was
>>    
>>
>>>NOT
>>>Yaesu's desire that things happened this  way, and
>>>      
>>>
>>there is NO equal
>>    
>>
>>>replacement
>>>for the part.) The closest alternate  parts are
>>>      
>>>
>>intended for 24 to 28 volt
>>    
>>
>>>operation, and will give only 15 to 20  watts
>>>      
>>>
>>after careful circuit
>>    
>>
>>>modifications, on 13.8 volts. POLYFET transistor 
>>>      
>>>
>>company has said they
>>    
>>
>>>are working on a
>>>similar device for 12 to 14 volt  operation, but I
>>>      
>>>
>>have yet to see or
>>    
>>
>>>obtain
>>>one.
>>>  I believe the original device was made
>>>      
>>>
>>ESPECIALLY FOR the FT-100, by
>>    
>>
>>>MOTOROLA, and sold ONLY to YAESU, so it is VERY
>>>      
>>>
>>UNLIKELY that you will
>>    
>>
>>>find a
>>>substitute with EQUAL performance, unless POLYFET
>>>      
>>>
>>or another manufacturer
>>    
>>
>>>decides
>>>to create a similar device.
>>>  Sorry for the BAD news.------------73, and Happy
>>>      
>>>
>>Holidays!-Bob  Curry,
>>    
>>
>>>KC3VO
>>>
>>>      
>>>



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