Re: Compactron tubes in HP or Tek instruments?
I looked through the 547 schematics and parts list and did not find anytoggle quoted message Show quoted text
Tektronix had part numbers for the 6GF5 beam power pentode and 6M11 twin triode
pentode and going by the parts list, the 556 used three 6M11s and two 6GF5s.
I remember that testing compactrons on a tube tester was interesting because
each element was listed separately.
On 30 Jan 2014 22:13:45 -0800, you wrote:
I don't think any are used in the vertical amplifiers of either the 547 or 556 (which are nearly identical designs BTW), as these are all transistorized, except the first stage cathode follower which is a 12AT7. The other tubes in the 547 are all single and dual sided tubes commonly used in several Tek scopes.