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eHam Forums => Boat Anchors => Topic started by: KA4LFP on August 27, 2012, 08:07:50 PM



Title: Autek Research -- trying to recall a BA era filter I had....
Post by: KA4LFP on August 27, 2012, 08:07:50 PM
Hi all --

Does anyone have any of the older 70s era audio filters??

I'm trying to recall what something was that I had --
I don't have a model number, but looking through the possible manufacturers, it seems to ring a bell that it might've been an Autek Research

It did not have the newer square case ones, like the QF1

Mine had the old 60s style round corners, and the type of case that slid over the
front and rear panels so that both were recessed inside edges of the case.
Both panels had rounded corners, as did the main case.
Real 1960s-70s styling...

Also had the perforated metal type case, where the case had 1/8 inch holes punched into it all over,
not the more modern slotted style vents.

Does that ring a bell with anyone??

Edited to add:

I should amend this by commenting that
the unit, best recalled, was about 2"- 21/2" high, about 4" wide, and maybe 4 or 5" deep.

About the same size as many keyers, etc.

No meters of any kind -- just one LED or maybe two, and three or four knobs and a couple of switches..

Powered directly off 110v as I recall

Thanks! you made me realise I could post a few more details...

73, de Tim


Title: RE: Autek Research -- trying to recall a BA era filter I had....
Post by: W9GB on August 27, 2012, 08:36:00 PM
Quote from: KA4LFP
Mine had the old 60s style round corners, and the type of case that slid over the
front and rear panels so that both were recessed inside edges of the case.
Both panels had rounded corners, as did the main case.
Real 1960s-70s styling ...

Also had the perforated metal type case, where the case had 1/8 inch holes punched into it all over not the more modern slotted style vents.
LMB Heeger Industries "CO" (aka COllins) series case, likely the model : CO-3
http://www.lmbheeger.com/products.asp?catid=16

CO-3 was same size enclosure that Collins used for Dummy Load,
and Genave Radio used for their 12 VDC, 7 A power supplies.
This same case was used for an early 1970s Morse Code reader (single alphanumeric Nixie or LED).


Title: RE: Autek Research -- trying to recall a BA era filter I had....
Post by: KA4LFP on August 27, 2012, 08:45:18 PM
Not quite the CO-3, perhaps the 3M --
Definitely that style of case, although maybe not that manufacturer,
although the picture at the bottom of the page was bang on, if a bit deeper..
seems as best I recall that the width and depth were about the same?


I should amend this by commenting that
the unit, best recalled, was about 2"- 21/2" high, about 4" wide, and maybe 4 or 5" deep.

About the same size as many keyers, etc.

No meters of any kind -- just one LED or maybe two, and three or four knobs and a couple of switches..

Powered directly off 110v as I recall

Thanks! you made me realise I could post a few more details...


Title: RE: Autek Research -- trying to recall a BA era filter I had....
Post by: W9GB on August 27, 2012, 09:03:58 PM
Autek Research (Florida) made the Q-BOX Audio Filter (headphones) in 1973 ....
Is that what you are thinking of??


Title: RE: Autek Research -- trying to recall a BA era filter I had....
Post by: KA4LFP on August 30, 2012, 05:11:46 PM

'fraid it's not a set of headphones..

I'm starting to wonder if it's not Autek --
I just honestly cannot remember who made it.

It's a piece of equipment that went between your rig and a speaker, as I recall -

Probably single RCA in/out jacks on the back, a few knobs were on the front,
maybe an LED or two...


Title: RE: Autek Research -- trying to recall a BA era filter I had....
Post by: W9GB on August 30, 2012, 06:00:25 PM
Photo of 1970s Autek QF-1
http://www.eham.net/reviews/detail/755

Photo of 1980s Autek QF-1A
http://www.metaphoria.us/hamradio/cwdiversity.htm

Autek QF-1 manual
http://bama.edebris.com/download/autek/qf1/QF1%20Filter.pdf

Autek QF-1A manual
http://www.autekresearch.com/qf1ainst.pdf



Title: RE: Autek Research -- trying to recall a BA era filter I had....
Post by: KA4LFP on August 30, 2012, 07:14:48 PM
Thanks!

Well, that about proves that I'm wrong for thinking it was an Autek...  ;-)
I should have thought of checking the reviews on here..

And it's a bit of serendipity that you posted that second link -

I'd seen that before, and been fascinated by it -
Now, I might just buy two of them and do that myself..

It's not like I'm going to find that old filter of mine, I've just been curious as to what it could have been --

I may have misled folks by mentioning Autek in the subject line of this thread - it's now really quite likely that
it wasn't an Autek, and I'm mistaken..

Who did make it, is a mystery... I'm pretty sure it was not homebrew - if it was, someone
did an awesome job of lettering, since I do recall the printing and assembly looking very factory screen printed and professional assembly.

Thanks for the article on dueling Auteks.. might go there...