GE Porta Color: need help identifying chassis / model

[Electronic M]

For as cheap of set these are they tend to be very long lived. I have one that is still all original inside and works fine.

There are things that do fail on them though. The white tubular ceramic cases paper caps which explode and spew metal foil everywhere (One is across the interlock, there's another in the HV cage region, and possibly more), the rear pots are highly prone to developing tin whiskers which will short out the pots and create ALL kinds of strange and tricky to troubleshoot issues, tubes and lytics also can fail.

If it's an HC I may have an old scan of my Sam's somewhere (I think someone uploaded my scan to the ETF site too).