[ForSale-Swap] SpeedCall DTMF decoder

[Dave Stephens]

Ok
this is the second attempt to get this message out. forgot to update my
address book to MailMan.QTH. anyways here is the original message:

Hello all.

Well i came accross something here. its a DTMF decoder that i got from a

friend of mine but i am trying to find the literature on it. it is a
Speedcall model number R-512-8 (or C-512-8). here is a high res picture
of it.

http://www.angelfire.com/trek/thebasement/images/speedcal.jpg

anyone that knows anything about this please let me know. thanx

Dave
KF6WJA