On 5 Nov 2018, at 20:52, brendda75 via Groups.Io <brendda75@...> wrote:
I also have a Tektronix 564! But it needs needs a lot of work. I have been able to check the voltages of the power supply and it's pretty much spot on. I can get a trace on the CRT, however the storage mode is not functional at all. I think I will probably end up replacing all the electrolytics in this scope as well. All the rails have excessive ripple and with my history of old capacitors, they tend to go with a nasty bang.
Now I wonder how many members here have a 564.
I too have one, with a Type 3A3 vertical plugin and Type 2B67 and 3B3 horizontal plugins.
The mainframe is notionally functional, but the upper storage portion works better than the lower ¡ª probably needs calibration ¡ª and the 2B67 free runs but won¡¯t trigger and the 3B3 won¡¯t sweep at all. The 3A3 seems to be roughly usable but in need of a tune-up.
Some day, I¡¯ll get around to fixing it all up.
