93

EUROPE

Basingstoke, UK 01256 812812

AUSTRALIA

Queenstown, Australia 61-8-8240-2244

CANADA

Guelph, Ontario (519) 822-2960

St. Laurent, Quebec (514) 343-9010

USA

Cheektowaga, NY (716) 630-7030

©

www.hammondmfg.com

Schematic - 1650G Only

Suggested Tube Types

Note: The above examples of possible combinations are to help you narrow down the choices of transformers for your favorite tube types. How

you operate the tubes (push-pull, push-pull parallel, ultra-linear, class, B+, bias, operating points, etc.) will change optimum plate to plate load

impedance. Only a few of the most popular tubes are shown. As more tubes become available we will add them to the list. A tube manual or tube

manufacturer'stechnicaldatasheetsshouldbeconsultedfirst,beforemakingadecisiononaproperoutputtransformer.

Schematic

All Parts Except 1645A, 1650E & 1650G

Part

Number

Audio Watts

(RMS)

Primary

Impedance

Operation

Tube Types

1608A

10

8,000 C.T.

Push-Pull (2 Tubes)

6AQ5, 6V6, 6BQ5, EL84, SV83

1609A

10

10,000 C.T.

Push-Pull (2 Tubes)

6AQ5, 6V6, 6BQ5, EL84, SV83

1615A

15

5,000 C.T.

Push-Pull (2 Tubes)

2A3, 6A3, 6AQ5, 6B4G, 6L6, 6V6

1650E

15

8,000 C.T.

Push-Pull (2 Tubes)

6AQ5, 6V6, 6BQ5, EL84, SV83

1620A

20

6,600 C.T.

Push-Pull (2 Tubes)

6AQ5, 6L6, 6V6

1650FA

25

7,600 C.T.

Push-Pull (2 Tubes)

6L6GC, 6V6, 807, 5881, EL34

1645A

30

5,000 C.T.

Push-Pull (2 Tubes)

6L6GC, 6V6, 807, 5881, EL34

1650G

35

6,600 C.T.

Push-Pull (2 Tubes)

6L6GC, 807, 5881, EL34

1650HA

40

6,600 C.T.

Push-Pull (2 Tubes)

6L6GC, 807, 5881, EL34

1650KA

50

3,400 C.T.

Push-Pull Par. (4 Tubes)

6L6GC, 807, 5881, EL34, 6146B, 6550B

1650NA

60

4,300 C.T.

Push-Pull Par. (2 or 4 Tubes)

6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88

1650PA

60

6,600 C.T.

Push-Pull (2 Tubes)

6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88

1650RA

100

5,000 C.T.

Push-Pull Par. (2 or 4 Tubes)

807, 5881, EL34, 6146B, 6550B, KT88

1650TA

120

1,900 C.T.

Push-Pull Par. (4 or 6 Tubes)

6L6GC, 5881, EL34, 6550B, KT88

1650WA

280

1,900 C.T.

Push-Pull Par. (6 or 8 Tubes)

6L6GC, 5881, EL34, 6550B, KT88

Brn

(Plate)

Blu/Yel

(Screen Gr)

Brn/Yel

(Screen Gr)

Blu

(Plate)

Blk (0 Ohm)

Grn (4 Ohm)

Yel (8 Ohm)

White (16 Ohm)

PRI

SEC

Red B+

Schematic - 1650E Only

Brn

(Plate)

Blu/Yel

(Screen Gr)

Brn/Yel

(Screen Gr)

Blu

(Plate)

Black (0 Ohm)

Grn (4 Ohm)

White (16 Ohm)

Org (70 V)

PRI

SEC

Red B+

Yel (8 Ohm)

Schematic

1645A Only

Brn

(Plate)

Blu/Yel

(Screen Gr)

Brn/Yel

(Screen Gr)

Blu

(Plate)

Blk (0 Ohm)

Blk/Red (4 Ohm)

Blk/Grn (8 Ohm)

Green (16 Ohm)

PRI

SEC

Red B+

Brn

(Plate)

Blu

(Plate)

Black (0 Ohm)

Org (3.5 Ohm)

Yel (16 Ohm)

Red/Yel (500 Ohm)

PRI

SEC

Red B+

Blk/Yel (250 Ohm)

Grn (8 Ohm)