1. All the iron looks to be from on mfr, who (or whom)?
Tamura from Japan, along with Tango, they are the best and only what I would used now, I have wasted lot of times and $ trying others. Japanese transformers are true to their spec, can't beat them sound wise.
2. What are the three silvery cans between the OPT and power xfrmrs that look like funny shaped cans of spam?
They are oil caps 1500V 15uF.
3. What are the two smaller dealies that look suspiciously like trannies but I think
are chokes sitting there right behind the dual rectifier tubes?
Tamura chokes, 10H 200ma each. I used double choke. There are 4 rectifiers, the big ones are for power tubes, the small one are for input/driver.
4. What is the tube compliment?
12AY7 input KT66 driver.
5. If it isn't IP property, schematic? Preferably with values, please!
This was built long time ago, around 95, schematic was never drawn, it was in my head back then.
Oh and nice cabinetry too! Mahogany top and Tiger Maple sides?
Top is Aluminum anodized in gold, wood chassis is Birdeye Maple.
1 what is the B+
920V
2 what is the driver complement
12AY7 input KT66 driver.
3 is the PS choke input or Cap input
15uF/1500V cap input
4 are you using interstage or cap coupled
Interstages are under the chassis, the rest are all Tamuras.
5 How does it sound with those tubes?
I would used this amp for the mid/hi in an active system. I prefer 845 from lower to mid/lo. From mid up they are very clear and detailed with great resolution, and not a hint of edginess, even when using them on horn system which what I used now to drive the Altec horns.
