Progressive Edu-Kit

• Pays
• Etats-Unis

• Fabricant / Marque
• Progressive Electronics Co. / Progressive Edu-Kits, Inc.; Brooklyn, NY / Hewlett, NY

• Année
• 1959 ?

• Catégorie
• Boîte de construction (composants et manuel) ou instructions

• Radiomuseum.org ID
• 334154

• Images
• Schémas

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Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.

• No. de tubes
• 3

• Lampes / Tubes
• 6C5 6SD7 6SD7

• No. de transistors

• Semi-conducteurs
• Selenium-Rectifier

• Tension / type courant
• 110-120 AC/DC Volt

• Haut-parleur
• - Seulement pour écouteur

• Matière
• Boitier métallique, lampes visibles

• De Radiomuseum.org
• Modèle: Progressive Edu-Kit - Progressive Electronics Co. /

• Remarques

• The kit of parts and instructional manual for the Progessive Edu-kit allowed for building 16 radio circuits. The circuits were all AC-DC "hot-chassis" with one side of the power line directly connected to the metal chassis.  The resistance in the line cord was used for one, two, or all three 6 volt tube filaments in series.   The full B+ voltage was applied to the single earphone for a number of the circuits.  In a word, the kit could be dangerous to the unsuspecting kit builder.  The radio circuits were indeed progressive ranging from a one tube triode grid leak detector to a pentode grid leak detector to several variations of a two-tube set with RF amplifier and various detectors, to several variations in a three tube set using the tubes as either a detector and audio amplifier or RF amplifier and detector.  A code oscillator and a broadcaster were the final circuits

  As listed in the kit manual, the parts included:

  1. 1 Instruction book
     1 Chassis - Punched, heavy gauge steel
     3 Tube sockets
     1 6C5, 6J5, or 6P5 tube
     2 6SD7, 6SK7, or 6SJ7 tubes
     1 Selenium rectifier - 65 ma
     1 Electrolytic condenser - dual 20 mfd at 150v.
     1 Resistance line cord - 330 ohms
     1 Variable condenser - dual gang 420 Mmf.
     1 Antenna coil (measured coil inductances = 240uH and 2mH)
     1 RF coil (measured coil inductances = 240uH and 10mH)
     1 Hank of spaghetti (tubing)
     1 Headset - 1000 ohms impedance
     1 Package of hardware
     1 Hank of hook-up wire
     1 Roll of solder
     1 Package of Resistors and Condensers
  2. Capacitors and resistors
     Resistor R1 - is listed as "Any value between 1500 and 5000 ohms".
     R2 is any value between 1 megohm and 3.3 megohm
     R3 is any value between 22 K and 50 K ohms
     R4 is any value between 100 K and 300 K ohms
     C1 is .01 MFD
     C2 is .001 MFD

• Prix de mise sur le marché
• 19.75 US$

• Littérature
• -- Original prospect or advert (February 1947 Popular Mechnacis)

• Schémathèque (1)
• -- Original prospect or advert (Ads in nearly every Popular Electronics from 1954 to 1964)

• Schémathèque (2)
• article in March 2014 issue of The Spectrum Monitor

• Auteur
• Modèle crée par Rich Post. Voir les propositions de modification pour les contributeurs supplémentaires.

• D'autres Modèles

• Vous pourrez trouver sous ce lien 1 modèles d'appareils, 1 avec des images et 1 avec des schémas.
  Tous les appareils de Progressive Electronics Co. / Progressive Edu-Kits, Inc.; Brooklyn, NY / Hewlett, NY