[ARC5] Transistorized ARC-5 Receiver
Bill Cromwell
wrcromwell at gmail.com
Tue Jan 3 11:48:58 EST 2017
Hi Roy,
I did a quick review of the article. We probably have better quality
devices to use today. The author was trying 'floor sweepings' from
Poly-Paks etc. It's no surprise the VFO function was the most critical.
I think - like you - I will keep the tubes in my LMs.
73,
Bill KU8H
On 01/03/2017 10:48 AM, Roy Morgan wrote:
>
>
> On Mon, Jan 2, 2017 at 1:32 PM, Spencer Petri <petewa5jci at gmail.com
> <mailto:petewa5jci at gmail.com>> wrote:
>
> Years ago I converted an LM freq meter to solid state ...The
> paperwork is long gone and that's all I remember
> about it except I ran it with a 9 V battery. de Pete WA5JCI
>
> If someone wants the article on this, I have it here:
>
> The Transistorized LM Frequency Meter
> Charles Landahl W5SOT
> 73 Magazine May 1971
> Pp: 60 - 64 with
> Page 47 From NAVSHIPS-900,217-1B
> (The LM manual).
>
> (The file name is: bc221andLM Soid State.pdf)
>
> The article uses the 3N128, 3N142, and 2N3085 among other choices.
>
> No, I have not done this conversion, and since I have some spare
> tubes, I likely will not. The article begins with:
> "The most difficult part of my conversion was getting up the courage
> to smash the tubes!"
>
> I guess! (Please don't!)
>
> LM's and BC-221's forever!
>
> --
> Regards,
> Roy
>
> Roy Morgan
> k1lky since 1958
>
>
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--
bark less - wag more
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