SONY ICF-SW7600 - Page 1
Forum section: electronics / rf-microwave

author: m3vuv
author_rank: Super Contributor
timestamp: December 20, 2021, 08:01:37 pm
content: Hi all,ive just brought one of these faulty that i am recaping,it receives upper and lower sidebands as well as am and fm,if im right for ssb you either need a bfo or carrier insertion oscillator,this has no bfo switch so any idea how its done on this?,tia.

author: mag_therm
author_rank: Frequent Contributor
timestamp: December 20, 2021, 08:59:21 pm
content: I have never used one but on manual page 26 it shows how to receive ssb, along with using the fine tuner- which will be a bfo frequency adjustment.If you haven't done manual tuning, on USB (20 metre etc),centralize BFO Fine tune, then using main frequency control manually slowly approach from below the ssb signal,and the ducktalk will get lower in pitch until resolved .On 40 m which has LSB, manually, slowly approach the station from above.I just read reports that it was a good receiver, along with some mentioning leaky and failed capacitors.

author: m3vuv
author_rank: Super Contributor
timestamp: December 20, 2021, 09:42:22 pm
content: ok on leaky caps,everyone ive pulled on this has pissed its pants,luckily the traces are ok,just wondered how usb/usb worked as cant see a switched bfo,seems most of the tactile switches are iffy on this too,not often ive seen them go bad!,73 m3vuv.

author: 9aplus
author_rank: Regular Contributor
timestamp: December 21, 2021, 10:34:51 pm
content: This is my Sony gang taken in 2017.Yours must be the second from the top?PS now own one more unit similar to top one.

author: iMo
author_rank: Super Contributor
timestamp: December 23, 2021, 04:41:29 pm
content: There are several variants of the 7600. I own the second and fourth from top in above picture and both have got SSB, work fine. Those are great radios, indeed..http://stephan.win31.de/sony7600.htm

author: cdev
author_rank: Super Contributor
timestamp: December 24, 2021, 03:04:49 pm
content: I think that John Lennon owned the largest, SSB-capable Sony available in the 60s era, it was a prized possession he listened to a great deal, and he used samples taken from it of shortwave broadcasts in many Beatles songs.I would assume that radio, if Yoko Ono still owns it, I think she does, is now worth a lot of money for that reason. I hope that she realizes that they always need recapping after a bit of time, and keeps it working.

author: 9aplus
author_rank: Regular Contributor
timestamp: December 25, 2021, 10:01:21 am
content: Right story, but the evidence show that it is in 80-ties, the full story is here:https://swling.com/blog/2014/10/john-lennon-and-the-sony-icf-2001/#commentshttps://www.radiomuseum.org/r/sony_icf_2001.html

author: m3vuv
author_rank: Super Contributor
timestamp: December 29, 2021, 01:05:14 pm
content: mine is the 3rd one down in your pic,its working fine,one mod i did was change the backlight cap for a 100uf one ,backlight now stays on for about 50 seconds,makes it more usable in the dark,also swapped the led backlight for a green super bright one.

author: 9aplus
author_rank: Regular Contributor
timestamp: December 29, 2021, 07:34:25 pm
content: The black one is my wife's favored.That also brings some challenge. The year ago, while on chasing game, the catshave pushed over the edge that poor Sony, fortunately the 1m fall just broke some back plastic.The radio survived, but it was impossible to glue the whole pieces puzzle on the both top back edges.Finally managed to buy replacement back case from the guy in Bulgaria.Now have unit with two serial numbersand the radio is in use every day, again.

author: V.Ampere
author_rank: Newbie
timestamp: January 10, 2022, 05:29:15 am
content: Sure would be nice if it was good enough on the ham bands to use as a communications receiver, i.e., to use for 80 meter CW!

author: 9aplus
author_rank: Regular Contributor
timestamp: January 11, 2022, 05:45:40 pm
content: When band is not crowded and now days most of the crowd is on FT8 and other digital modes, it is good enough for CW.