Electronics > Projects, Designs, and Technical Stuff

Low Cost Huntron 2000 - Circuits, Plans & Ideas!

(1/4) > >>

Chris56000:
Hi!

So as not to intermingle one thread into a confused mess, I've started this separate thread to post my design ideas, schematics and ideas to make a low cost Huntron 2000 style Component Tracker that performs equivalently to the genuine instrument, but without needing any scarce parts like the XR2209 and the uA759, can be built with low-cost standard parts and cheap Asian modules - (EPE Magazine is doing a series on these Modules), or readily available ICs still in production.

My first priority is to design a replacement for the three-frequency (50Hz, 400Hz and 2000Hz) oscillator phase-locked to an a.c. mains reference that does NOT require any end-of-life devices - altho' 8038s are considered to be E.O.L., there appear to still be plentiful stocks in China, but a discrete solution is better if I can work out one!

I consider that a substantial saving of hundreds of £ can still be made compared to the silly prices Sellers are asking for these instruments!

Chris Williams

trigskraj:
Look
adrupus  -- https://www.excelworks.info/Arduino.html
analog signature -- http://analogsignature2.wixsite.com/analog

fastguido:
Why do you think that Huntron needed the oscillator to be phase locked to the AC mains ? I appears that they only phased locked the 50/60 hz frequencies, not the others. If what I am seeing the reference just auto selects which freq. to use 50Hz or 60Hz.

schmitt trigger:
I was shown Huntron tracker back in the early 90s in a visit to an military electronics assembly house. The technicians loved it, they would  fully troubleshoot complex assemblies utilizing only this instrument and a golden unit.

I became hooked too, and purchased several for my technicians where I used to work.

Then if I recall properly, Tektronix purchased Huntron, and made a fancy, Tektronix-priced unit. Apparently they sold poorly and were discontinued.

Thus, original Huntron units command very high prices.

But back to the topic at hand; Of course either 50 or 60 Hz were derived from the power line. But 400 and 2000 Hz were internally generated and were not exceptionally precise, +/-3% if I recall properly, on a new unit. And they didn't need to be accurate anyways.

Nowadays, these frequencies would be easily synthesized with a microcontroller.
But hey!, some of us like analog oscillators. The choice is yours.

kripton2035:
you could also do this freq generator ( and the rest of the device) using some cypres psoc. you have everything you need analog+digital inside.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod