Much Thanks to everyone for your replies.

I will try to address them in order.
JM Fahey;
“1) the driver transformer is improperly drawn, it needs a primary winding and 2 independent secondary ones.”
Yes, I see now my error in drawing it like I did.
My not knowing how the six pins on the transformer are wired internally, I simply assumed each side of 3 pins were simply a coil with center tap.
I understand now how that is wrong, and I will redraw the schematic to correct this.
“2) the supply shows a 1K resistor in series with *everything*”
Yes… that
IS how it’s wired.
I thought it very odd so I shorted the 1K and the amp did not work properly. I don’t now recall exactly what happened, but I think the Trem quit working when that 1K was shorted, so I put it back to original.
“3) the tremolo diode can't be wired that way”
Respectfully, it is indeed wired that way. I checked the traces on the board and the components connected to them at least a dozen times or more. Probably more…..
It really is wired like that. I can’t explain it. The Trem does work.
Perhaps later I will upload a video demo so you can hear how amazingly effective the Trem actually is. Aside from the narrow speed range it works great. Very deep throb. The only other Trem issue is the Intensity control needs some “expansion” of the range. It goes from full OFF to almost Maximum Intensity with about a quarter turn of the knob.
Pics will be posted of the “piezo” reverb tank.
As you can see, this is a Head type amp. I didn’t get a speaker cab with it, but the original was likely a 2X8 to make this a “Mini Stack”
For now I am using a Vintage @ 1974 Traynor GuitarMate 12” speaker cab. I unplugged the GuitarMate amp and made a cable to use just the speaker.
I will explain here that my interest in this amp is because I had the Sears Silvertone version when I was about 13 years old. Mine was exactly the same as this Teisco but for a silver front panel and the Sears name on it. I had the 2X8 speaker cab too. The Head and cab have these little suitcase type latches to clip the head to the top of the cab. I looked hard to find the Silvertone version with no luck, and when this Teisco came up on eBay I grabbed it.

I’ll see if I can find some pics. There are other versions of this amp out there.
I plan to build a 2X8 speaker cab for it as similar to the original as possible based on pics I have found of similar amps. I even ordered some of those suitcase latches to clip the head on top.

I’ve built speaker cabs before so that won’t really be a problem.
DrGonz 78Thank you for the schematic.

I will use it to redraw the output stage. I’m sure that is how it should be.
RolyYep, the Trem thru D2 is "unique"

Input impedance;
I measured 18.75K directly on the first guitar input jack using my Fluke meter.
All other amps I have checked like this measure 1meg or more, so ya, it’s gotta be loading down the guitar. Perhaps a small buffer stage could be placed on the input… or… just always use a pedal… hmmm….
Trem lack of range… I’ll live with it, as I said above it works ok to suit me.
D2 diode leaky;
The original diode forward voltage drop is 2.43 and the replacement measures 3.70 with my meter on diode check. Don't know if the low V drop is an indication of "leaky" but the higher drop diode made the amp louder. I tried a silicon diode but then the Trem quit working.
Reverb;
I can cobble up a 5V reg to power the reverb brick, but I’m uncertain where and how to interface with the amp. Reverb drive and recovery amps needed? I don’t know… Will do more research into this (and get a brick ordered so I have something to play with). Any help along these lines will be much appreciated.

I’ve been researching efficient 8” speakers and the Celestion 8-15 looks ok at 95dB but if you have any suggestions I’m open.
Yep, it’s a dated design and not really much better than a toy, but I like it, Frog warts and all. I certainly won’t gig with it but might use it as a “novelty” sound for our jam/practice place.

Thank again for all your input, it is much appreciated.

Hmmm having trouble getting the pics to post... bear with me...
Ahh... ok... got it.