[Boatanchors] HQ-129-X Mods in CQ Magazine - available

[Bill Cotter]

I have the original Bill Orr article "New Life for the National 
NC-240D" saved as a PDF (7mB) or separate JPEG pages (4x1.8mB) 
available to anyone who can receive it by mail.

Several years ago I performed these mods on a National RAO-7 and a 
BC-312 with great success. It opened up things above 14mHz in a 
dramatic way, and stabilized the HFO a lot.

I don't recall if this article mentions it, but additional bypass 
caps (combo of three disc 0.1uF, 0.01uF and 0.001uF) on the 
cathodes and screens of the RF stages also made a significant 
difference.

Drop me a line requesting it in the format of your choice (one 
attached pdf or four separate e-mails with one jpeg each).

73 Bill N4LG

At 12:09 AM 11/20/2008, you wrote:
>Yep, for some reason, FBTO doesn't show any NC240 or NC-2-40 type
>articles. Here's a better one. The CQ Magazine archive search function
>doesn't even bring this specific article. I tried NC240, NC240D, 
>NC-240D,
>NC-2-40, etc. However, if you click on 1957, and then November 
>issue, you
>can read the Table of Contents and it's listed there on Page 103.
>To play with the CQ Magazine archives, go here:
>http://hamcall.net/cqcgi
>
>Pete, wa2cwa
>
>Pete-
>"New Life for the National NC-240D" by William I Orr, W6SAI
>   CQ Nov. '57 Page 103
>
>Guess CQ was as confused with Natinal's numbering schemes as many hams
>were.
>
>73,
>Chuck N7RHU
>
>
>On Wed, 19 Nov 2008 21:26:54 -0500 Garey Barrell 
><k4oah at mindspring.com>
>writes:
> > Mark -
> >
> > FBTO comes up with 376 refs for Bill Orr, but none in CQ in the
> > 50's.
> >
> > It does however come up with two articles of "Improvements for the
> > HQ-129X" in CQ, one in the April 1952 (no author attributed), and
> > another in CQ for May 1959, again no author.  I  _may_  be able to
> > find
> > the issues, although since the move it's been a bit of a 
> crapshoot!
> >
> >
> > 73, Garey - K4OAH
> > Glen Allen, VA
>_______________________________________________