[Lowfer] 29.5 kHz historical

[Graham]

Many years ago we used an inked paper tape recorder for recording and 
analyzing stuff that sounds similar to what you had. It was about the 
size of a "breadbox" or at least the main unit was. It had two channel 
inputs, on one we would put a time signal and the other was used for 
whatever was being measured. It also had a variable speed feed. The 
inputs where analog, the time signal input was just a standard IRIG time 
signal and I think there might have a threshold control of some sort to 
control when or when not a mark was made.

We used to simply refer to it as a Hell. It may have been made by 
Siemens and at that time (early 70's) was already quite old with it's 
black crinkle finish paint.

Kind of like an electro-mechanical device used to do some of things we 
now do with the likes of ARGO or Spectrum Lab. In reality just another 
form of strip chart recorder.

cheers, Graham



On 2014-03-08 00:53, David L. Wilson wrote:
>> David,
>>
>> Very interesting story.
>>
>> Did that "surplused NSA ink-paper recorder " use a paper tape about 3/8"
>> wide was made by Hellscriber?
> Not sure who made the paper but it was that size.   I bought the thing from
> Fair Radio Sales in Lima, Ohio in the late 1960's.  Still have parts of the
> cannibalized power supply.
>
>
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