Description
Trygon Electronics HR40-750 DC Power Supply 0-40V 0-750mA Benchtop Lab
Benchtop DC power supply with 0–40V and 0–750mA output ranges. Features a built-in analog meter for voltage and current measurement, with dual-range settings and front panel adjustment controls.
Specifications & What's Included
- Output: 0–40V, 0–750mA with selectable 0–4V range
- Meter: Analog volts/amps with switchable ranges (0.08A/0.8A, 4V/40V)
- Output connections: Front binding posts and rear 10-position screw terminal strip
- Controls: Voltage adjust, current adjust, power on/off, meter range switch
- Construction: Linear design with discrete transistor/tube-era circuitry, point-to-point wiring
- Fuse: SLO-BLO rear panel holder
- Unit only; no accessories
Applications
Benchtop power supplies of this class are used for laboratory testing, equipment servicing, and prototype development. The dual voltage/current modes support work with low-voltage logic circuits, analog instrumentation, and industrial electronics. Linear designs of this era were standard in service shops and labs for powering test equipment, charging batteries, and troubleshooting discrete and integrated circuit boards.
Condition: Used
This Trygon Electronics HR40-750 benchtop DC power supply has been inspected and is in good used condition. It was pulled from a working environment where it was previously in use. The chassis shows age-appropriate wear consistent with a unit from the early 1970s — the front panel has some discoloration and light grime, and the rear brass-finish panel shows oxidation and surface patina. The analog meter face and controls appear intact. The internal circuit boards and wiring are visible in our photos and appear complete and undamaged. Please view our photo set and contact us if you have any questions.
This Trygon Electronics HR40-750 benchtop DC power supply has been inspected and is in good used condition. It was pulled from a working environment where it was previously in use. The chassis shows age-appropriate wear consistent with a unit from the early 1970s — the front panel has some discoloration and light grime, and the rear brass-finish panel shows oxidation and surface patina. The analog meter face and controls appear intact. The internal circuit boards and wiring are visible in our photos and appear complete and undamaged. Please view our photo set and contact us if you have any questions.
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: |
Trygon Electronics |
Model: |
HR40-750 |
MPN: |
HR40-750 |
Type: |
Benchtop DC Power Supply |
SKU: |
47820 |
Output Voltage Range: |
0 – 40 VDC |
Output Current Range: |
0 – 750 mA |
Voltage Modes: |
0–4V and 0–40V selectable |
Meter: |
Built-in analog Volts/Amps meter |
Meter Range Switch: |
Amps: 0.08A / 0.8A; Volts: 4V / 40V |
Front Panel Controls: |
Adjust Current, Adjust Voltage, Power On, Meter Range |
Output Terminals: |
Binding posts (front) + 10-position screw terminal strip (rear) |
Rear Terminal Labels: |
-V, -S, +S, +V, G (sense and output terminals) |
Fuse: |
Rear-panel fuse holder, SLO-BLO type |
Internal Transformer: |
HT40-750 3080A (visible on transformer body) |
Construction: |
Discrete transistor/tube-era linear circuit, point-to-point wiring |
Form Factor: |
Benchtop |
Manufacture Date: |
Sept 1970 (order date); Sept 1971 (cal/completion date) |
Manufacturer Location: |
Roosevelt, N.Y. |
Country/Region of Manufacture: |
United States |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Unit only; pulled from a working environment. No accessories included. |
Condition Notes: |
Trygon Electronics HR40-750 DC power supply pulled from a working environment; inspected and in good used condition. Shows age-appropriate wear and oxidation on the rear panel. Analog meter and controls intact. |
