[Boatanchors] [homebrew-dual-sideband:129] 6360s, 7360 equivalents and DSB & SSB respectively plus OT Network attached storage

[Ian Wilson]

The original beam-deflection tube was, I believe, the 6AR8.
This was followed by improved versions such as the 6JH8, 6ME8, 6HW8.

Some of the improvements were worthwhile (e.g. the 6AR8 was significantly
microphonic). Other 'improvements' such as different base connections
were probably intended to lock you into a particular manufacturer.

Looking at the data sheets it has always seemed to me that most of
these tubes appear to be more linear than the 7360. However, they operate
on higher voltages so this may be an unfair comparison.

It also seems to me that if you are using these tubes as high-performance
front-end mixers then for more linear operation you should apply the signal
in push-pull to the deflection electrodes, and apply the LO to the control
grid. However, this isn't balanced with respect to the LO - a significant
advantage of applying signal to g1 and push-pull LO to the deflectors.

73, ian K3IMW