[Amps] Ham Tests, was Price per Watt Conversation

[Peter Voelpel]

The last four I bought came from Henry Radio.
Rfparts sell them as well.

https://www.rfparts.com/catalogsearch/result/?q=mrf454

73
Peter, DJ7WW


-----Original Message-----
From: Carl [mailto:km1h at jeremy.qozzy.com] 
Sent: Montag, 1. Mai 2017 20:55
To: Peter Voelpel; 'Jim Thomson'; amps at contesting.com
Subject: Re: [Amps] Ham Tests, was Price per Watt Conversation

If you can find a real matched pair and not Chinese trash.


----- Original Message ----- 
From: "Peter Voelpel" <dj7ww at t-online.de>
To: "'Jim Thomson'" <jim.thom at telus.net>; <amps at contesting.com>
Sent: Saturday, April 29, 2017 2:56 AM
Subject: Re: [Amps] Ham Tests, was Price per Watt Conversation


> MRF458 and MRF 454 transistors are still available and you can also use
> 2SC2879.
> 
> 73
> Peter, DJ7WW
> 
> -----Original Message-----
> From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Jim Thomson
> 
> <I wouldn't worry too much about transistors becoming unobtainable
> <because equivalents will nearly always be available. Compared to
> <tubes, transistors don't have nearly as many physical variations and
> <many of the later ones will be drop-in replacements. Not so much with
> <tubes without replacing sockets and re-wiring. 
> 
> <In either case, where there's a will there's a way.
> 
> <73, Bill W6WRT
> 
> ##  tell that to my buddy, who lives 5 blocks away from me. He has
> a ten-tec hercules  SS  500 watt amp. Transistors are un obtainium.
> There is no drop in replacement either. There is no way to even re-design
> and rebuild the damned thing.   Its a door stop, worth nothing. Nobody
> has been successful in getting a TEN TEC Hercules to work.  They
> are all door stops. 
> 
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