Product Overview
DO-41 Voltage Regulator Diodes (2-Piece Pack)
Condition
New, vintage NOS in original package. Unopened retail blister card shows light age wear and surface creasing. Two red glass axial-lead diodes remain factory sealed inside.
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Product Overview
Archer Cat. No. 276-562 provides two 9V 1-watt zener diodes in DO-41 hermetic glass axial packaging. Distributed by Radio Shack and Tandy Corporation, these components cross-reference standard 1N4739 series diodes to supply stable voltage regulation, circuit protection, and reference rails for analog and power supply designs.
Key Features
- Nominal 9.1V regulation point (package labeled 9V)
- 1.0 watt maximum power dissipation rating
- DO-41 hermetic glass axial-lead package
- Black cathode band markings for polarity identification
- Two diodes sealed on the retail blister card
Applications
- Rebuilding vintage analog power supplies and audio preamplifiers
- Breadboard prototyping and voltage rail clamping for hobby projects
- Period-correct repairs of vintage Radio Shack and Tandy electronic devices
Frequently Asked Questions
What industry part number corresponds to this catalog item?
Archer Cat. No. 276-562 cross-references directly to standard 1N4739 and 1N4739A 9.1V 1W zener diodes.
How many diodes come with this item?
Two diodes are sealed in the factory package.
Why buy this sealed vintage card instead of chasing a bulk surplus lot?
You get the exact two original Archer diodes sealed in their retail packaging without having to purchase a bulk reel of unverified parts. Shipping is $8 flat rate, free once the order passes $28, and orders leave the Idaho warehouse the same or next business day.
Few things capture bench nostalgia quite like original Radio Shack blister-pack silicon. Bend the leads, trim them to length, and get that circuit running steady.
