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Quality Transformer and Electronics

Quality Transformer Electronics 4690 Klystron 12KVA 3-Phase 208V Varian MED

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SKU:
41921
MPN:
4690
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
280.00 LBS
Shipping:
Calculated at Checkout
  • Quality Transformer Electronics 4690 12KVA three-phase klystron transformer — 3/4 front view showing three-core construction, red terminal block on top, and rotary tap selector on right side, unit seated in wooden crate
  • Quality Transformer Electronics 4690 — close-up of rotary tap selector knob showing positions 0 through 5 with safety shield bracket and mounting screws
  • Quality Transformer Electronics 4690 — front-on view of three-core transformer body with green manufacturer label, red primary terminal block at top, and rotary tap selector visible at right
  • Quality Transformer Electronics 4690 — close-up of secondary tap winding connections showing yellow-labeled wire lugs on multi-position rotary tap switch stacks (positions 12, 11, 22, 21, 32, 31 visible)
  • Quality Transformer Electronics 4690 — close-up of green manufacturer label reading: Quality Transformer and Electronics, Model No. 4690, Varian M.E.D., 01-005163 Rev H, 91-26, S/N 654, with de-energize warning
  • Quality Transformer Electronics 4690 — close-up of red secondary output terminal block showing labeled terminals X3, X2, X1 with yellow ring-lug wiring
  • Quality Transformer Electronics 4690 — close-up of multi-layer rotary tap switch assembly showing wire connections at tap positions 12, 11, 22, 21, 32, 31 and circular common bus at base
  • Quality Transformer Electronics 4690 — rear three-quarter view showing tap switch assembly at left, green label and red X1/X2/X3 terminal block at right, three transformer cores visible below
  • Quality Transformer Electronics 4690 — underside/bottom view of three-core transformer body showing core lamination construction and lead wiring exiting base
$2,000.00
Was: $4,000.00
Current Stock: 1

Sold Out

Description

Quality Transformer Electronics 4690 Klystron 12KVA 3-Phase 208V Varian MED

Three-phase high-voltage transformer rated at 12 KVA, designed for use in Varian M.E.D. klystron modulator power supplies. Primary input accepts 208V line-to-line three-phase delta configuration. Secondary output provides adjustable DC voltage from 3,500V to 9,600V via five tap positions when used with external HV rectifier diodes.

Specifications & What's Included

  • Model: 4690 (MPN: 01-005163 Rev H)
  • Power Rating: 12 KVA
  • Primary: 208V three-phase delta
  • Secondary: 3,500V–9,600V DC adjustable (5 tap positions)
  • Output Configuration: Three-phase Y for HV rectifier diodes
  • Secondary terminals: X1, X2, X3 on red terminal block
  • Rotary tap selector knob and wiring included
  • Open frame floor-mount construction

Applications

This transformer type serves as the high-voltage power supply component in Varian M.E.D. klystron modulator systems, which were used in medical and industrial RF applications. The adjustable secondary voltage allows matching to specific klystron tube requirements. Compatible with Varian M.E.D. modulator platforms that utilize external HV rectifier diode stacks for DC conversion.

Condition: Used
This Quality Transformer and Electronics 4690 three-phase klystron transformer has been inspected and is in good condition. It was pulled from a working environment where it was in active use. The three-core transformer body is intact with no visible physical damage; the rotary tap selector turns through all five positions, and the secondary terminal wiring and yellow-labeled lugs appear complete and undamaged as shown in the photos. Normal surface wear consistent with industrial service is present. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Quality Transformer and Electronics
Model:
4690
MPN:
01-005163 Rev H
Type:
Three-Phase High-Voltage Klystron Transformer
SKU:
41921
Condition:
Used – Pulled from Working Environment
Seller Notes:
Transformer only; all tap wiring and selector knob present as shown in photos.
Country/Region of Manufacture:
United States
Power Rating:
12 KVA
Primary Voltage:
208V Line-to-Line
Input Configuration:
Three-Phase Delta
Secondary Voltage:
3,500V – 9,600V DC (adjustable)
Output Configuration:
Three-Phase Y (for use with HV rectifier diodes)
Phase:
Three Phase
Tap Positions:
5 (positions 0–5 via rotary selector knob)
Output Type:
Adjustable DC via external HV rectifier diodes
Application:
Varian M.E.D. Klystron Power Supply
Compatible With:
Varian M.E.D. klystron modulator systems
Revision:
Rev H
Date Code:
91-26
Form Factor:
Open Frame / Floor Mount
Output Terminals:
X1, X2, X3 secondary terminals on red terminal block
Condition Notes:
Quality Transformer & Electronics 4690 klystron transformer, 12KVA 3-phase. Inspected and in good condition; pulled from working environment. Rotary tap selector and secondary terminal wiring intact. Normal industrial wear.
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Related Products

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Varian MED 01-000062-00H 12kVA three-phase transformer — front-left view showing three black coil cores on steel base frame with Kraus & Naimer rotary tap selector and wiring harness on top Varian MED 01-000062-00H 12kVA three-phase transformer — front-right view showing three-phase coil assembly, top-mounted tap switch, and full wiring harness loop
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Varian MED 01-000062-00H 12kVA 3-Phase Transformer Klystron RF Power Supply

Varian

$1,500.00
Was: $3,500.00
Varian MED 01-000062-00H 12kVA 3-Phase Transformer Klystron RF Power SupplyThis is a three-phase power transformer designed for Varian Medical Systems klystron RF power supplies. It steps down 208V...
45820
SKU:
45820
Availability:
Usually ships within 1-2 business days.
Weight:
257.00 LBS
Brand:
Varian Medical Systems (Varian MED)
Model:
01-000062-00H
MPN:
01-000062-00H
Type:
Three-Phase Power Transformer
SKU:
45820
Power Rating:
12 kVA
Primary Voltage:
208V AC (Three-Phase Delta)
Secondary Voltage:
Adjustable 3,500V – 9,600V DC
Phase:
Three Phase
Input Configuration:
Delta (3-Phase)
Output Configuration:
Three-Phase Y (Wye) for HV DC rectification
Tap Positions:
12 (via rotary selector knob)
Tap Selector:
Kraus & Naimer A14 Rotary Switch, Style-MC, 12-position
Tap Switch Rating:
AC1: 16A 660V; AC3: 5.5kW 3x380V; 1ph: 1.5kW 220V
Output Terminals:
3 output studs labeled X1, X2, X3 on red busbar
Application:
Klystron RF Power Supply (Varian MED)
Compatible With:
Varian MED Klystron RF Power Supply
CMC Code:
1858C
LOT:
738-8544
Condition:
Used – Pulled from Working Environment
Seller Notes:
Includes attached wiring harness and Kraus & Naimer rotary tap selector.
Country/Region of Manufacture:
United States
Form Factor:
Open Frame / Floor Mount (on steel base frame)
Condition Notes:
Varian MED 01-000062-00H 12kVA 3-phase transformer. Inspected and in good used condition; pulled from active service. Coils show normal wear. Tap selector and output terminals intact. Wiring harness included.