Re: Comments from Peter Keller on the 500 Series Scopes
First, Peter’s book is one of my favorites, and is a resource I reach for regularly.toggle quoted messageShow quoted text
My first experience with the 500 series was in the college lab in the late 70s. There was always a scramble to get the one 547 that was available. My first restoration, with the help of this group, was a 535 documented here in 2008.
The favorite scope at work for documenting audio issues was a 547. Screen shots from the 547 appear in multiple Warner Music Group documents and decks. As I have mentioned in other posts my 570 and 575 were used regularly to check tubes and transistors. Again, all restored to usefulness with the help of this group:
My next restorations that I’ll be sharing with this group will be a 561 and a 555.
Happy holidays to all,
On Dec 24, 2020, at 9:23 AM, Don Bitters via groups.io <email@example.com> wrote: