Single Ended
•
•
•
•
•
•
•
•
•
•
•
1640SEA
1627SEA
1630SEA
1628SEA
1629SEA
1638SEA
Number
triode tubes.
1642SE
"Over designed" for high-fidelity, single ended, Class-A, tube output circuits (triode, tetrode or pentode tubes).
Enclosed (shielded), four slot, chassis Type "X" mounting.
Frequency response at least 20 Hz. to 20 KHz. at full rated power (+/- 1 db max., ref. 1 Khz.)
Units are designed to provide ample "headroom" at bass frequencies (note the weight of each transformer).
All models have a secondary tapped for 4, 8 or 16 ohm outputs.
Insulated flexible leads 8" min.
For maximum versatility, all units (except the 1642SE & 1638SEA) include a 40% screen tap for Ultra-Linear,
tetrode/pentode operation (if desired).
The 1642SE & 1638SEA do NOT include a screen tap as they were designed principally for high impedance
High quality laminations, (M6) grain oriented silicon steel.
Core is gapped to reduce core saturation in Class-A, tube amplifier circuits.
For general purpose or replacement use in single ended, tube output circuits see our 125 "SE" series.
Part
©
St. Laurent, Quebec (514) 343-9010
Cheektowaga, NY (716) 630-7030
Guelph, Ontario (519) 822-2960
Audio
Watts
30
30
30
30
75
30
30
CANADA
Impedance
10,000
USA
1,250
2,500
3,500
5,000
5,000
6,500
Audiophile - Tube Output (1627-1642 Series)
"CLASSIC" TUBE OUTPUT - ULTRA-LINEAR
Max. DC
Primary
200 ma.
160 ma.
135 ma.
120 ma.
300 ma.
100 ma.
90 ma.
Bias
Inductance
www.hammondmfg.com
Henrys
14
20
42
48
53
55
88
SINGLE-ENDED
40% Primary
Ultra-Linear
86
Tap
Yes
Yes
Yes
Yes
Yes
No
No
(VRMS)
Hipot
2,000
2,000
2,000
2,000
3,500
2,000
2,000
Test
3.75 4.95 4.56 3.00 3.90 .203 x .375
3.75 4.50 4.56 3.00 3.13 .203 x .375
3.75 4.98 4.65 3.00 3.90 .203 x .375
3.75 4.50 4.56 3.00 3.13 .203 x .375
4.38 7.50 5.25 3.50 5.88 .203 x .375
3.75 4.50 4.56 3.00 3.88 .203 x .375
3.75 4.50 4.56 3.00 3.13 .203 x .375
A
Queenstown, Australia 61-8-8240-2244
B
Dimensions (Inches)
Basingstoke, UK 01256 812812
C
AUSTRALIA
D
EUROPE
E
Slot
G
Lbs.
Wt.
11
11
11
11
28
11
11