I need a schematic for a Heathkit IM 2400

Heathkit documents here
http://www.vintage-radio.info/heathkit

hi Bruce

I was able to come up with a complete user manual which includes assembly instructions. I hope this is of some help to you.

-Steve


https://archive.org/details/HeathkitHw-101

Here is a link to the wiring diagrams Heathkit Schematic and Manual Archive

The diagram shows only one output to hook it up too.

Some guy bought permission to reproduce and sell Heathkit manuals from the copyright holder. Legally he doesn't control the copyrights, but he goes after anyone who posts copies of the manuals, so most people are afraid to engage him in a legal dispute. You might get lucky finding PDF's of GIF's, but generally this guy has driven everything underground.

Here are the schematics - hope they help.
http://www.rsp-italy.it/Electronics/Kits/_contents/Heathkit/Kits/Heathkit%20IO-4510%20oscilloscope%20schematic.pdf

get a schematic of the radio and use a volt meter to check out the voltages coming to your counter.

An external freq counter will always do a better test then the one on the unit . Do you have an oscilloscope? A function generator will also have a freq counter . Now the ultimate is a spectrum analyzer. you don't need all these but the function generator will work fine.

Hello
Get into this link. You can download the user manual alongwith its schematic from here.
www.w6ze.org/Heathkit/Heathkit_033_SB200.pdf

Simplest explanation is to connect signal to BNC and select frequency measurement (you may need to play around with it a bit) but it's like any other frequency counter - never used this model but if you know what the frequency you excpect then playn around until you get it

get connected to the following
www.glolab.com/freeinfo/info.html-11k
or
www.vitage-radio.info/heathkit/-78k