There were a couple of other QSK devices reviewed,
and some homebrwe articles:
MSL; Digital QSK Kit - QST Oct 80; Pagel, Paul N1FB
Design ELectronics QSK-1500 reviewed as a NEW PRODUCT
- QST Aug 1984
Linear T/R Switch (Ameritron QSK-5) - Dec 1991 QST
QSK Modification for the Trio-Kenwood TL-922 Amplifier - Mar 1989 Ham Radio,
by AG6K
QSK Amplifier Keying (Hints and Kinks) - QST Aug 1986
Instant Break-In For The Heath SB-200 - QST Mar 1981
All Solid-State QSK For The Heath SB-220 - QST Jan 1980
Does anyone know if one of these articles has a homebrew design using PIN
diodes that one might be able to reproduce?
How about availability of the diodes these days?
73 de AF4K
|