High-performance shortwave radio converter for an AM car radio. Est. cost: $13.
ELECTRONICS HOBBYISTS HANDBOOK 1990 pg. 34
Simple circuit to receive either the 6-MHz or 9.5-MHz shortwave band on a car radio.
ELECTRONICS NOW Mar 1997 (v.68#3) pg. 10
DX-Com. Crystal-controlled converter allows you to tune three shortwave-broadcast bands on your car radio. Est. cost: $15.
HANDS-ON ELECTRONICS Jan 1988 (v.5#1) pg. 70
Add a shortwave converter to your analog or digital AM car radio.
POPTRONIX HOBBYISTS HANDBOOK Winter 1996 pg. 26
Build an economy portable shortwave receiver by adding a rotary switch and homemade coil to an inexpensive AM radio. Est. cost: $20.
POPULAR ELECTRONICS [2] Aug 1990 (v.7#8) pg. 37
Add shortwave or VHF reception to any radio.
POPULAR ELECTRONICS [2] Dec 1991 (v.8#12) pg. 56
Correction POPULAR ELECTRONICS [2] Mar 1992 (v.9#3) pg. 3
Build a shortwave converter for your car radio. Works with both analog and digital radios. Est. cost: $50 (kit).
POPULAR ELECTRONICS [2] Sep 1995 (v.12#9) pg. 41
Added Info POPULAR ELECTRONICS [2] Nov 1995 (v.12#11) pg. 4