Crate v100H schematic

[65Fender]

Just purchased a Crate v100H head , would like to have the schematic for it,
please

[65Fender]

Bias Adjust

Bias adjustment

[65Fender]

Schematic Crate V100H

First Schematic

[65Fender]

Second Schematic V100H

Second Schematic

[65Fender]

V100H tube locations

V100H tube locations

[65Fender]

Crate V100H Power Supply

REV 2 of Schematic

[65Fender]

Crate V100H Updated Schematic

This is from Loud Tech

[CRU JONES]

Cool man, Wish I bought one!
Good for all your Jcm 800 mods! The last schematic has atleast one error on it. The K4 relay... Can't be right.
I'm all about switching regulators, though I know they are having some probs.
Peace,
Cru

[Enzo]

What is it about K4? I see the contacts, but I don;t spot the coil drive.

[CRU JONES]

Enzo,
K4:
in the contact position shown V2b cascades into the grid of V3a. That seems normal. But K4's other contact position connects V2a's grid with V3a's grid.
Now that I look at it I guess it is obvoius what it should be, but last night it boggled me.
What about that boost circuit? oooh... inductors...
Cru

[Enzo]

Ah, I see what you mean. When I first looked at it, in my mind I just saw what it ought to be without looking close enough.

I still don;t spot the K4 coil drive, maybe I am just senile.

[CRU JONES]

Well, maybe the same coil drive as K3 as they would switch together... I think.

Boost circuit:
Vintage: 68nF and 47mH Narrow boost at 2.8Khz.
Flat boost: 10uF and 3mH wide boost at about 900Hz.
(~13dB all the way cranked. Taking into account the 100k/330k divider).

Cru

[lalunatech]

Thanks for the schematic guys.