I posted this on another forum I belong to with no feedback so far so though I would try here.
I have several 816 tubes to test but cannot find the proper test settings for my 612. In trying to roll my own I've come up with what I think are some of the settings.
A (1?) - B 4 - C (7?) - D 1 - E Not used(?) - F 9 - Fil Cont 4 - Comments - Use black grid cap
I found a Phillips exchange guide from 1965 that says the 816 can be replaced with an 866A which I do have the settings for. In looking at the spec sheets for the two I can see they are very similar(to me at least). The settings are similar to my original 816 settings attempt except for C.
The settings are A2 - B4 - C30 - D1 - E not used - F9 Fil Cont 4
Does anyone have any input on trying the settings for the 866A? C seems to be the only one really far off from my stab at it.
I just acquired a pair of WE 259a and a single WE 244a. Neither are in my settings list!
I think I ready need instruction on how to figure out my own test settings.
Thank you in advance for any help.
I have several 816 tubes to test but cannot find the proper test settings for my 612. In trying to roll my own I've come up with what I think are some of the settings.
A (1?) - B 4 - C (7?) - D 1 - E Not used(?) - F 9 - Fil Cont 4 - Comments - Use black grid cap
I found a Phillips exchange guide from 1965 that says the 816 can be replaced with an 866A which I do have the settings for. In looking at the spec sheets for the two I can see they are very similar(to me at least). The settings are similar to my original 816 settings attempt except for C.
The settings are A2 - B4 - C30 - D1 - E not used - F9 Fil Cont 4
Does anyone have any input on trying the settings for the 866A? C seems to be the only one really far off from my stab at it.
I just acquired a pair of WE 259a and a single WE 244a. Neither are in my settings list!
I think I ready need instruction on how to figure out my own test settings.
Thank you in advance for any help.