1M 1M

OT

A

AChoke

OT Choke

Filament AC

Filament CT

Stock Heyboer 100W PT

Primary Secondary

CT

NormalBright

50/50

- -

- - - -

- -

Note - Power transformer primary connections(Power Cord/IEC Socket, Mains Fuse, AC SwitchIndicator Lamp) and OT secondary connections (OT Secondary Leads, Impedance Selector, Output Jacks) omited.

Mains Filter

Presence Bass Mids Treble NormalBright

.1u

1M-A1M-A1M-A 250k-L25k-L5k-L

120v

220v

240v

Common To Mains Fuse

For US 120v tap to AC Switch

10k/

2W8.

2k/2

W

10k/

2W

.022

u .68u

.002

2u

.022

u

.022

u

.022

u

.1u

330u

68k

68k

68k

68k

2.7k

470k

820

470

47k

/100

k

470k

100k

33k

100k

100k

820

1M 1M

10k

100k

220k

82k

220k

15k47p

500p

556p

10k/

2W

.022

u

.022

u

47k

100k

1R 2

W

1R 2

W1k 5W1k 5W

HV Secondary

Standby

8/10

u

8/10

u

50/50

- -

HT Fuse

220k