12/9/2018
High Voltage (Plate) & Filament (300 Series) - Hammond Mfg.
Quality Products. Service Excellence.
High Voltage (Plate) & Filament
300 Series
Universal Primary & 50/60 Hz Operation
Features
Primary: Universal - 100, 110, 120, 200, 220,230, 240 VAC 50/60 Hz.
NOTE: units are designed to operate with BOTH primary windings engaged.
See primary wiring information under resources.
Bias Tap: 50 VAC tap from high voltage secondary C.T. (except part number
379WX
-
uses a separate 60VAC 0.2 Amp winding).
Highpot tested: 2,000 VAC
Faraday Copper Primary Shield: Our electrostatic shield reduces the capacitive coupling
from the primary - greatly attenuating higher frequency current coupling to the
secondaries (shield is internally grounded to the end bell).
Windings: Concentric wound for low stray field and low noise.
Models: This series is an upgrade from our entire
200 Series
range of units PLUS 2
models designed specifically for 300B tubes (Part Number
300BX)
and 2A3 tubes (Part
Number
302AX).
Finish: Black powder paint to match our 1650 series of output transformers Units can be
run full wave bridge or full wave C.T.
Conservative designs - CSA certified (209651).
For a more economical, open frame, universal primary - check out our
260 Series.
For that "high end" look & feel check out our potted versions - the
300P Series.
Gallery
A.C.
High Voltage
Secondary
Part No. VA
363AX
369AX
369BX
32
40
39
R.M.S.
200V C.T. @ 115ma.
250V C.T. @ 115ma.
300V C.T. @ 86ma.
Bias Tap on High
Voltage secondary
with C.T Grounded
(VAC)
50
50
50
Filament #1
(VAC)
5V C.T. @ 2A
6.3V C.T. @ 2A
6.3V C.T. @ 2A
Filament #2
(VAC)
-
-
-
Filament #3
(VAC)
-
-
-
Filament #4
(VAC)
-
-
-
Dimension
Reference
X6
X6
X6
https://www.hammfg.com/electronics/transformers/classic/300
1/3
12/9/2018
A.C.
High Voltage
Secondary
Part No. VA
363CX
369EX
369HX
369KX
370X
370AX
369GX
369JX
370JX
370KX
370BX
370CX
370DX
370EX
370FX
370HX
370LX
370MX
371X
372BX
372DX
372FX
302AX
372HX
372JX
372KX
372LX
372X
376X
373EX
373FX
373DX
373X
373BX
373HX
373JX
374AX
374X
374BX
375X
378X
300BX
378CX
379WX
379X
382X
384X
119
45
120
188
41
44
50
50
133
229
55
59
86
119
141
180
340
403
63
98
127
150
198
191
243
432
520
75
157
311
386
101
125
187
369
710
136
141
200
171
237
280
465
193
283
329
R.M.S.
360V C.T. @ 288ma.
380V C.T. @ 75ma.
450V C.T. @ 150ma.
450V C.T. @ 300ma.
480V C.T. @ 46ma.
480V C.T. @ 58ma.
450V C.T. @ 75ma.
500V C.T. @ 69ma.
500V C.T. @ 81ma.
500V C.T. @ 161ma.
500V C.T. @ 322ma.
520V C.T. @ 104ma.
550V C.T. @ 58ma.
550V C.T. @ 75ma.
550V C.T. @ 104ma.
550V C.T. @ 144ma.
550V C.T. @ 173ma.
550V C.T. @ 230ma.
550V C.T. @ 460ma.
550V C.T. @ 575ma.
560V C.T. @ 69ma.
600V C.T. @ 115ma.
600V C.T. @ 144ma.
600V C.T. @ 173ma.
600V C.T. @ 230ma.
600V C.T. @ 230ma.
600V C.T. @ 288ma.
600V C.T. @ 575ma
600V C.T. @ 690ma
620V C.T. @ 81ma.
640V C.T. @ 173ma.
650V C.T. @ 345ma.
650V C.T. @ 460ma.
700V C.T. @ 104ma.
700V C.T. @ 127ma.
700V C.T. @ 201ma.
700V C.T. @ 403ma.
700V C.T. @ 863ma.
720V C.T. @ 138ma.
750V C.T. @ 127ma.
750V C.T. @ 201ma.
800V C.T. @ 155ma.
800V C.T. @ 230ma.
800V C.T. @ 288ma.
800V C.T. @ 534ma.
850V C.T. @ 173ma.
1,000V C.T. @ 230ma.
1,200V C.T. @ 230mA
High Voltage (Plate) & Filament (300 Series) - Hammond Mfg.
Bias Tap on High
Voltage secondary
with C.T Grounded
(VAC)
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
60*
50
50
50
Filament #1
(VAC)
5V C.T. @ 3A
6.3V C.T. @ 2.5A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 2A
6.3V C.T. @ 2.5A
6.3V C.T. @ 2.5A
6.3V C.T. @ 2.5A
5V C.T. @ 2A
5V C.T. @ 3A
5V C.T. @ 6A
6.3V C.T. @ 3.5A
5V C.T. @ 2A
5V C.T. @ 2A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 6A
5V C.T. @ 6A
5V C.T. @ 2A
5V C.T. @ 2A
5V C.T. @ 3A
5V C.T. @ 3A
2.5V C.T. @ 2.5A
5V C.T. @ 3A
5V C.T. @ 4A
5V C.T. @ 6A
5V C.T. @ 6A
5V C.T. @ 2A
5V C.T. @ 3A
5V C.T. @ 6A
5V C.T. @ 6A
5V C.T. @ 2A
5V C.T. @ 2A
5V C.T. @ 3A
5V C.T. @ 6A
5V C.T. @ 6A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 3A
5V C.T. @ 1.2A
6.3V C.T. @ 6A
6.3V C.T. @12A
5V C.T. @ 3A
5V C.T. @ 3A
5V @ 3A
Filament #2
(VAC)
-
-
6.3V C.T. @ 6A
6.3V C.T. @ 6A
6.3V C.T. @ 1.5A
-
-
-
6.3V C.T. @ 2.5A
6.3V C.T. @ 6A
6.3V C.T. @ 6A
-
6.3V C.T. @ 2A
6.3V C.T. @ 3A
6.3V C.T. @ 4A
6.3V C.T. @ 5A
6.3V C.T. @ 6A
6.3V C.T. @ 9A
6.3V C.T. @ 9A
6.3V C.T. @ 2A
6.3V C.T. @ 3A
6.3V C.T. @ 4A
6.3V C.T. @ 5A
5V C.T. @ 3A
6.3V C.T. @ 6A
6.3V C.T. @ 8A
6.3V C.T. @ 9A
6.3V C.T. @ 12A
6.3V C.T. @ 2.4A
6.3V C.T. @ 5A
6.3V C.T. @ 9A
6.3V C.T. @ 9A
6.3V C.T. @ 3A
6.3V C.T. @ 4A
6.3V C.T. @ 5A
6.3V C.T. @ 9A
6.3V C.T. @ 12A
6.3V C.T. @ 3.5A
6.3V C.T. @ 5A
6.3V C.T. @ 6A
6.3V C.T. @ 5A
6.3V C.T. @ 6A
5V C.T. @ 3A
-
-
6.3V C.T. @ 5A
6.3V C.T. @ 6A
6.3V @ 3A
Filament #3
(VAC)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
6.3V C.T. @ 6A
-
-
-
-
6.3V @ 3A
Filament #4
(VAC)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Dimension
Reference
X11
X6
X10
X20
X6
X6
X6
X6
X8
X20
X22
X8
X7
X7
X8
X11
X20
X20
X23
X24
X7
X10
X11
X20
X13
X13
X14
X21
X25
X8
X20
X23
X24
X10
X11
X13
X21
X26
X11
X20
X13
X20
X22
X15
X21
X26
X22
X15
X15
370CAX
66
370DAX
76
6.3V C.T. @ 0.6A 6.3V C.T. @ 2.5A
6.3V C.T. @ 6A 2.5V C.T. @ 2.5A
940 800V C.T. @ 1.06 A or 850V C.T. @ 1A
*Note: 60 VAC winding for bias supply - on our 379WX is a separate winding (maximum current of 200 ma.)
Note: See our PDF Design Guide for rectifier use suggestions.
Horizontal Mount ("Z" mounting)
https://www.hammfg.com/electronics/transformers/classic/300
2/3
12/9/2018
A.C.
High Voltage
Secondary
Part No.
370DAZ
373AZ
373CZ
373DZ
VA
76
49
159
101
R.M.S.
520V C.T. @ 104ma.
650V C.T. @ 46ma.
650V C.T. @ 173ma.
700V C.T. @ 104ma.
High Voltage (Plate) & Filament (300 Series) - Hammond Mfg.
Bias Tap on High
Voltage secondary
with C.T Grounded
(VAC)
50
50
50
50
Filament #1
(VAC)
6.3V C.T. @ 3.5A
5V C.T. @ 2A
5V C.T. @ 3A
5V C.T. @ 2A
Filament #2
(VAC)
-
6.3V C.T. @ 2A
6.3V C.T. @ 5A
6.3V C.T. @ 3A
A
B
C
Dimensions
D
F
G
1.30
1.25
1.84
1.39
H
3.38
3.38
3.75
3.75
J
2.81
2.81
3.13
3.13
2.25 2.81 3.50 2.50 2.44
2.50 2.81 3.45 1.87 2.44
2.50 3.15 4.08 2.06 2.69
2.50 3.15 3.60 2.06 2.69
Vertical Mount ("X" mounting)
Mtg.
Style
X6
X7
X8
X9
X10
X11
X13
X14
X15
X19
X20
X21
X22
X23
X24
X25
X26
A
2.50
2.50
2.50
2.50
3.13
3.13
3.75
3.75
3.75
3.13
3.13
4.38
3.75
4.38
4.38
4.38
5.28
B
2.75
3.00
3.25
3.75
3.50
3.75
4.00
4.50
5.00
4.00
4.25
5.60
4.19
4.85
5.10
6.10
6.60
Dimensions
C
3.06
3.06
3.06
3.06
3.81
3.81
4.56
4.56
4.56
3.81
3.81
5.30
4.56
5.30
5.30
5.30
6.36
D
2.00
2.00
2.00
2.00
2.50
2.50
3.00
3.00
3.00
2.50
2.50
3.50
3.00
3.50
3.50
3.50
4.25
E
1.69
1.94
2.19
2.69
2.19
2.44
2.81
3.31
3.81
2.69
2.94
4.00
3.06
3.25
3.50
4.50
5.00
G - Mtg. Slot
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.203 X .38
.281 X .625
.203 X .38
.281 X .625
.281 X .625
.281 X .625
.281 X .750
Data subject to change without notice
© 2018. Hammond Manufacturing Ltd. All rights reserved.
https://www.hammfg.com/electronics/transformers/classic/300
3/3
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Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Hammond
:
300BX 378X 373X 378CX 370AX 370HX 370BX 370FX 302AX 374BX 363CX 372FX 372BX 372JX 369GX
369AX 369EX 369BX 369JX 373BX 373CZ 363AX 370CAX 370CX 370DAX 370DAZ 370X 371X 372DX
372HX 372X 373AZ 373DX 373DZ 374X 376X 379X 382X 369HX 369KX 370JX 370KX 370LX 370MX
372KX 372LX 373EX 373FX 373HX 373JX 370EX 374AX 375X 370DX 379WX 384X
