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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
Part Details
Click Part No, below, for details (e.g., Product drawings, assembly instructions, ship weight)
Part No. | VA | A.C. | Bias Tap on High | Filament #1 | Filament #2 | Filament #3 | Filament #4 | Dimension |
---|---|---|---|---|---|---|---|---|
High Voltage | Voltage secondary | |||||||
Secondary | with C.T Grounded | |||||||
R.M.S. | (VAC) | (VAC) | (VAC) | (VAC) | (VAC) | Reference | ||
363AX | 32 | 200V C.T. @ 115ma. | 50 | 5V C.T. @ 2A | - | - | - | X6 |
369AX | 40 | 250V C.T. @ 115ma. | 50 | 6.3V C.T. @ 2A | - | - | - | X6 |
369BX | 39 | 300V C.T. @ 86ma. | 50 | 6.3V C.T. @ 2A | - | - | - | X6 |
363CX | 119 | 360V C.T. @ 288ma. | 50 | 5V C.T. @ 3A | - | - | - | X11 |
369EX | 45 | 380V C.T. @ 75ma. | 50 | 6.3V C.T. @ 2.5A | - | - | - | X6 |
369HX | 120 | 450V C.T. @ 150ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X10 |
369KX | 188 | 450V C.T. @ 300ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X20 |
370X | 41 | 480V C.T. @ 46ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 1.5A | - | - | X6 |
370AX | 44 | 480V C.T. @ 58ma. | 50 | 6.3V C.T. @ 2.5A | - | - | - | X6 |
369GX | 50 | 450V C.T. @ 75ma. | 50 | 6.3V C.T. @ 2.5A | - | - | - | X6 |
369JX | 50 | 500V C.T. @ 69ma. | 50 | 6.3V C.T. @ 2.5A | - | - | - | X6 |
370CAX | 66 | 500V C.T. @ 81ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 2.5A | - | - | X8 |
370JX | 133 | 500V C.T. @ 161ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X20 |
370KX | 229 | 500V C.T. @ 322ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 6A | - | - | X22 |
370DAX | 76 | 520V C.T. @ 104ma. | 50 | 6.3V C.T. @ 3.5A | - | - | - | X8 |
370BX | 55 | 550V C.T. @ 58ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 2A | - | - | X7 |
370CX | 59 | 550V C.T. @ 75ma. | 50 | 6.3V C.T. @ 0.6A | 6.3V C.T. @ 2.5A | - | - | X7 |
370DX | 86 | 550V C.T. @ 104ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 3A | - | - | X8 |
370EX | 119 | 550V C.T. @ 144ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 4A | - | - | X11 |
370FX | 141 | 550V C.T. @ 173ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X19 |
370HX | 180 | 550V C.T. @ 230ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X20 |
370LX | 340 | 550V C.T. @ 460ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 9A | - | - | X23 |
370MX | 403 | 550V C.T. @ 575ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 9A | - | - | X24 |
371X | 63 | 560V C.T. @ 69ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 2A | - | - | X7 |
372BX | 98 | 600V C.T. @ 115ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 3A | - | - | X10 |
372DX | 127 | 600V C.T. @ 144ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 4A | - | - | X11 |
372FX | 150 | 600V C.T. @ 173ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X20 |
302AX | 198 | 600V C.T. @ 230ma. | 50 | 2.5V C.T. @ 2.5A | 5V C.T. @ 3A | 6.3V C.T. @ 6A | 2.5V C.T. @ 2.5A | X13 |
372HX | 191 | 600V C.T. @ 230ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X13 |
372JX | 243 | 600V C.T. @ 288ma. | 50 | 5V C.T. @ 4A | 6.3V C.T. @ 8A | - | - | X14 |
372KX | 432 | 600V C.T. @ 575ma | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 9A | - | - | X21 |
372LX | 520 | 600V C.T. @ 690ma | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 12A | - | - | X25 |
372X | 75 | 620V C.T. @ 81ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 2.4A | - | - | X8 |
376X | 157 | 640V C.T. @ 173ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X20 |
373EX | 311 | 650V C.T. @ 345ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 9A | - | - | X23 |
373FX | 386 | 650V C.T. @ 460ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 9A | - | - | X24 |
373DX | 101 | 700V C.T. @ 104ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 3A | - | - | X10 |
373X | 125 | 700V C.T. @ 127ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 4A | - | - | X11 |
373BX | 187 | 700V C.T. @ 201ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X13 |
373HX | 369 | 700V C.T. @ 403ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 9A | - | - | X21 |
373JX | 710 | 700V C.T. @ 863ma. | 50 | 5V C.T. @ 6A | 6.3V C.T. @ 12A | - | - | X26 |
374AX | 136 | 720V C.T. @ 138ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 3.5A | - | - | X11 |
374X | 141 | 750V C.T. @ 127ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X20 |
374BX | 200 | 750V C.T. @ 201ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X13 |
375X | 171 | 800V C.T. @ 155ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X20 |
378X | 237 | 800V C.T. @ 230ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X22 |
300BX | 280 | 800V C.T. @ 288ma. | 50 | 5V C.T. @ 1.2A | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | X15 |
378CX | 465 | 800V C.T. @ 534ma. | 50 | 6.3V C.T. @ 6A | - | - | - | X21 |
379WX | 940 | 800V C.T. @ 1.06 A or 850V C.T. @ 1A | 60* | 6.3V C.T. @12A | - | - | - | X26 |
379X | 193 | 850V C.T. @ 173ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | - | - | X22 |
382X | 283 | 1,000V C.T. @ 230ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | - | - | X15 |
384X | 329 | 1,200V C.T. @ 230mA | 50 | 5V @ 3A | 6.3V @ 3A | 6.3V @ 3A | X15 |
Horizontal Mount ("Z" mounting)
Units shown: inch. Switch units to: mm
Part No. | VA | A.C. | Bias Tap on High | Filament #1 | Filament #2 | Dimensions | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
High Voltage | Voltage secondary | ||||||||||||
Secondary | with C.T Grounded | ||||||||||||
R.M.S. | (VAC) | (VAC) | (VAC) | A | B | C | D | F | G | H | J | ||
370DAZ | 76 | 520V C.T. @ 104ma. | 50 | 6.3V C.T. @ 3.5A | - | 2.25 | 2.81 | 3.50 | 2.50 | 2.44 | 1.30 | 3.38 | 2.81 |
373AZ | 49 | 650V C.T. @ 46ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 2A | 2.50 | 2.81 | 3.45 | 1.87 | 2.44 | 1.25 | 3.38 | 2.81 |
373CZ | 159 | 650V C.T. @ 173ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 5A | 2.50 | 3.15 | 4.08 | 2.06 | 2.69 | 1.84 | 3.75 | 3.13 |
373DZ | 101 | 700V C.T. @ 104ma. | 50 | 5V C.T. @ 2A | 6.3V C.T. @ 3A | 2.50 | 3.15 | 3.60 | 2.06 | 2.69 | 1.39 | 3.75 | 3.13 |
369KZ | 188 | 450V C.T. @ 300 ma. | 50 | 5V C.T. @ 3A | 6.3V C.T. @ 6A | 2.50 | 3.12 | 4.25 | 2.06 | 2.69 | 2.06 | 3.75 | 3.12 |
370KZ | 218 | 500V C.T. @ 300 ma. | 50 | 5V @ 6A | 6.3V C.T. @ 6A | 3.00 | 3.75 | 4.06 | 2.59 | 3.38 | 1.81 | 4.50 | 3.75 |
Vertical Mount ("X" mounting)
Units shown: inch. Switch units to: mm
Mtg. | Dimensions | G - Mtg. Slot | ||||
---|---|---|---|---|---|---|
Style | A | B | C | D | E | |
X6 | 2.50 | 2.75 | 3.06 | 2.00 | 1.69 | .203 X .38 |
X7 | 2.50 | 3.00 | 3.06 | 2.00 | 1.94 | .203 X .38 |
X8 | 2.50 | 3.25 | 3.06 | 2.00 | 2.19 | .203 X .38 |
X9 | 2.50 | 3.75 | 3.06 | 2.00 | 2.69 | .203 X .38 |
X10 | 3.13 | 3.50 | 3.81 | 2.50 | 2.19 | .203 X .38 |
X11 | 3.13 | 3.75 | 3.81 | 2.50 | 2.44 | .203 X .38 |
X13 | 3.75 | 4.00 | 4.56 | 3.00 | 2.81 | .203 X .38 |
X14 | 3.75 | 4.50 | 4.56 | 3.00 | 3.31 | .203 X .38 |
X15 | 3.75 | 5.00 | 4.56 | 3.00 | 3.81 | .203 X .38 |
X19 | 3.13 | 3.94 | 3.80 | 2.50 | 2.69 | .203 X .38 |
X20 | 3.13 | 4.25 | 3.81 | 2.50 | 2.94 | .203 X .38 |
X21 | 4.38 | 5.60 | 5.30 | 3.50 | 4.00 | .281 X .625 |
X22 | 3.75 | 4.19 | 4.56 | 3.00 | 3.06 | .203 X .38 |
X23 | 4.38 | 4.85 | 5.30 | 3.50 | 3.25 | .281 X .625 |
X24 | 4.38 | 5.10 | 5.30 | 3.50 | 3.50 | .281 X .625 |
X25 | 4.38 | 6.10 | 5.30 | 3.50 | 4.50 | .281 X .625 |
X26 | 5.28 | 6.60 | 6.36 | 4.25 | 5.00 | .281 X .750 |
Data subject to change without notice.
Tags: classic transformers, universal primary, high voltage, plate, filament