1640 Picture

"CLASSIC" SINGLE ENDED

ULTRA-LINEAR TUBE OUTPUT

Key Features:

 

Cat. No.

Audio Watts

Primary

Secondary Impedance

Wt. Lbs.

Price

Paypal

Impedance

Max. DC Bias

1626SEA 25 600 200ma. 4-8-16 11 $131.87

1640SEA 30 1,250 200ma. 4-8-16 11 $161.13

1627SEA
30
2,500
160 ma.
4-8-16
11
$161.13

1630SEA 30 3,500 135ma. 4-8-16 11 $161.13

1628SEA
30
5,000
120 ma.
4-8-16
11
$161.13

1642SE 75 5,000 300 ma. 4-8-16 28 $313.89

1629SEA
30
6,500
100 ma.
4-8-16
11
$161.13

1638SEA
30
10,000
90 ma.
4-8-16
11
$200.19

Suggested Tube Types:

Cat. No.

Triodes

Pentodes

1626SEA

6C33

-

1640SEA

Parallel - 2A3, 6A3, 6B4G, 300B, 572B, 811A

Parallel - 6550, 6CA7

1627SEA

2A3, 6A3, 6B4G, 300B

6CA7, 6L6, 807, 5881, 6550, Parallel - 6AQ5, 6V6, EL84

1630SEA

2A3, 6A3, 6B4G, 300B

6CA7, 6L6, 807, 5881, 6550,
Parallel - 6AQ5, 6V6, EL84

1628SEA

211, 300B, 572B, 811A

6AQ5, 6V6, 6L6, 807, 5881, 6550, EL84

1642SE

Parallel - 211, 572, 811A, 845

-
1629SEA

211, 811A, 572B, 845

6AQ5, 6V6, 6L6, 807, 5881, 6550, EL84

1638SEA

211, 845

-

Notes: 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 (ultra-linear, class, B+, bias, operating points, etc.) will change optimum 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's technical data sheets should be consulted first, before making a decision on a proper output transformer.

Mechanical Data:

Single Ended Line Art

Cat. No.

Dimensions (Inches)

A

B

C

D

E

G (slot)

1626SEA 3.75 4.44 4.56 3.00 3.31 0.20 x 0.38
1640SEA
3.75
4.95
4.56
3.00
3.90
0.20 x 0.38
1627SEA
3.75
4.50
4.56
3.00
3.81
0.20 x 0.38
1630SEA
3.75
4.98
4.65
3.00
3.90
0.20 x 0.38
1628SEA
3.75
4.50
4.56
3.00
3.81
0.20 x 0.38
1642SE
4.38
7.50
5.25
3.50
5.88
0.20 x 0.38
1629SEA
3.75
4.50
4.56
3.00
3.88
0.20 x 0.38
1638SEA
3.75
4.88
4.56
3.00
3.90
0.20 x 0.38

 

 

Schematic & Hook Up Data (except 1642SE):

Single Ended Schematic



Secondary Connections

 Secondary Schematic (4 Ohm)

Secondary Schematic (8 Ohm)

Secondary Schematic (16 Ohm)

Note: The 1642SE does not include a primary screen tap. It also uses easy hook up secondary taps (ie...16 ohm full winding with taps at 4 and 8 ohms).
 
 

Email us if you have any questions.

Place an order

Back to the main page