Hello Steve.. Yes the ST5 I have is one I built from the old ARRL Specialized Communication Technique handbook.. I still have the book which is a good thing as I have forgotten some of the things I did with it.. It's my ugly perf board construction I did back then I cant stand ha ha.. It's so bad.. I am probably going to rebuild it with a new circuit board.. Also the UART circuit, it's just bad looking ha ha.. I had a lot of fun on 20 meters with it all back in the late 70s and 80s.. Hoping to get it all working again..

Skip MacAulay
VE6BGT

On Thu, May 4, 2023, 8:40 AM Steve, <zarco@sonic.net> 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
______________________________________________________________
GreenKeys mailing list
Home: http://mailman.qth.net/mailman/listinfo/greenkeys
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys@mailman.qth.net

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to ve6bgt@gmail.com