[GreenKeys] ST-5

John, W9DDD w9ddd at tapr.org
Thu May 4 13:23:43 EDT 2023


I think the DT-500 was more like the ST-5.  The DT-600 was closer to the 
ST-6.  I had both the ST-5 and the DT-500.  I perf-boarded a DT-600/ST-6 
hybrid too.

Details of all of that are ancient history, so consider the possible 
memory degradation.  All are in a box of seventies era RTTY stuff I that 
I put aside as I run across them while sorting through 60 years of 
accumulation.  I hope to get to that stuff so I can get back on the air 
RTTY wise.  It's the AF and RF side that is lacking at this point.

The collection started with novice ticket in 1959 to FM repeaters to 
RTTY to packet radio and too many computers.  Sorting started about ten 
years ago and I already regret some of the items that went to the 
landfill.  Not that I still want them (well there was that nice 19 
supply), but I've learned that people are still looking for the stuff.

---
----
You said "tomorrow" yesterday.

The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD

On 5/4/2023 10:45 AM, kn7sfz wrote:
> And wasn't the DT-600 project an attempt to put the ST-5 on a single 
> board?
>
> Richard kn7sfz
>
>
>
> On 5/4/2023 6:57 AM, Steve wrote:
>> The ST-5 was an excellent HF RTTY demodulator. It was featured as a 
>> construction
>> article in the ARRL handbook in the early '70's if I recall. I'm 
>> still using the one
>> I built back then. The ST-6 is based on the ST-5 and very similar.
>> Steve W6SSP
>>
>> __
>
>
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