WTD: Manual for IG-52 and IG-112

[Richard Post]

You hit it right on the nose, Neil!  IG-52 is on pages 70-71 of the 
Sams book TEST EQUIPMENT CIRCUIT MANUAL by Robert Middleton.  I often 
overlook that source even though it's sitting on my bookshelf.

I would scan the schematic, but it is identical to the TS-4 which is 
still on the archive page.  Click on the following URL which is in 
brackets.

<http://web.archive.org/web/20040209042404/www.circuitarchive.fsnet.co.uk/diagrams/ts-4a.gif>

Here is that same URL shrunk courtesy of tinyurl.com

http://tinyurl.com/4e8mj

What threw me initially was someone identifying one of the tubes as a 
6L6.  It's really a 6CL6, a potent little RF tube.

I actually have a TS-4 sitting on the shelf wondering how to convert 
it to do sweep output at, say, 455 KHz for alignment of communication 
receivers with crystal filters.  Anyone done this as yet to an 
otherwise mostly useless piece of TV test gear?


Rich

Boatanchor pix

<http://www.qsl.net/kb8tad>



At 2:49 PM -0800 2/19/05, Neil Morrison wrote:
>I downloaded this site, but neither IG-52 nor IG-112 are on there.
>
>Sams published a book (green cover) of test equipment circuits. Might be in
>a library?
>
>Neil
>
>----- Original Message -----
>From: "Malcolm Leonard" <radiorepair at MINDSPRING.COM>
>
>
>>  That site has been archived by an outfit that apparently archives
>everything
>  > on the web for posterity....
>

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