[ARC5] Transistorized ARC-5 Receiver

Roy Morgan k1lky68 at gmail.com
Tue Jan 3 10:48:43 EST 2017


On Mon, Jan 2, 2017 at 1:32 PM, Spencer Petri <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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