HiWatt Schematics

DR103, 100W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

DR112, 100W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

DR201, 200W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

DR203, 200W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

DR405, 400W

Schematic of the preamp

Schematic of the PSU

Schematic of the power amp

DR504, 50W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

L50R

Schematic of the preamp

L100R

Schematic of the preamp

SA112, 50W

Schematic of the power amp

Schematic of the PSU

SA115, 50W

Schematic of the power amp

Schematic of the PSU

SA212, 50W

Schematic of the power amp

Schematic of the PSU

STA100, 100W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

STA200, 200W

Schematic of the preamp

Schematic of the power amp

Schematic of the PSU

STA250, 200W

Schematic of the power amp

STA400, 400W

Schematic of the power amp

Schematic of the PSU

Check out the HiWatt Story for more information on the HiWatt tube guitar amps.

HiWatt UK is worth checking out too.

See Mark Huss’s excellent HiWatt site for a lot more technical information.