Quote:
Originally Posted by zenithfan1
The ironic part is that it's so hard to hook a Sylvania rig to a Sylvania chassis  . Glad you finally got a possible solution. |
Lack of direct test rig support for most of the earliest color chassis designs is quite common, and that is especially true of sets using tubes older than all-glass 21" types like the 21CYP22, 21FBP22, and subsequent types.
Now that the solution to interfacing with sets from the era of the 21AXP22 is solved, I'm left wondering if some means of interfacing to sets using a 15GP22 or 15HP22 could be developed almost as easily. Perhaps a 20-pin base from an otherwise-unsalvageable 15G could be paired with a CRT socket from a junked "nothing special" Rectangular set and a set of inline resistive networks (values in the tens or hundreds of megohms, I would guess) to terminate the convergence electrode circuits? What would be the effect on chassis operation of leaving those convergence pins unconnected?