[TenTec] Century 21 Replacement Drivers and Finals

[Bwana Bob]

Just an FYI, in it's cousin, the Century 22, Ten-Tec replaced both the 
MRF-476 drivers and the MRF-475 finals with Mitsubishi 2SC1969, due to 
high failure rates. The 2SC1969 is also available from RF Parts.  A note 
of caution:  By name-brand transistors from RF Parts or other well-known 
distributor.  There are some counterfeit Chinese copy power  transistors 
on the market, intended for CB radio mods.


73,

Bob WB2VUF


On 8/7/2016 12:51 PM, Mike Pagel wrote:
> Are these what you're looking for, Woody?
>
> https://www.rfparts.com/rftransistors/transistor-mrfsrfm/rftransistors-mrf-400/mrf472.html 
>
>
> https://www.rfparts.com/rftransistors/transistor-mrfsrfm/rftransistors-mrf-400/mrf475.html 
>
>
> 73, de Mike, K9UW
>
>
> ------ Original Message ------
> From: "Sherwood Demitz" <wdemitz at verizon.net>
> To: tentec at contesting.com
> Cc: "'Woody Demitz'" <wdemitz at verizon.net>
> Sent: 8/7/2016 11:11:44 AM
> Subject: [TenTec] Century 21 Replacement Drivers and Finals
>
>> Greetings - Are there modern-day replacements for the Century 21 "MRF 
>> 472"
>> PA drivers and the PA pair of "MRF 475"s?  I tried with Digikey and 
>> Newark,
>> and drew the electronic equivalent of a blank stare from each. Thanks in
>> advance!
>>
>>
>>
>> Woody
>>
>> KO3S
>>
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>>
>
>
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