AX-235 "Little Miracle"

Emerson Radio & Phonograph Corp.; New York, NY

Données
Forum
Images
Collections

  • Année
  • 1938/1939
  • Catégorie
  • Radio - ou tuner d'après la guerre 1939-45
  • Radiomuseum.org ID
  • 70865
    • alternative name: Emerson Television

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

 Spécifications techniques

  • No. de tubes
  • 5
  • Principe général
  • Super hétérodyne (en général); FI/IF 455 kHz
  • Gammes d'ondes
  • PO uniquement
  • Tension / type courant
  • Appareil tous courants (CA / CC) / 105-125 Volt
  • Haut-parleur
  • HP dynamique à électro-aimant (électrodynamique) / Ø 4 inch = 10.2 cm
  • Matière
  • Cataline
  • De Radiomuseum.org
  • Modèle: AX-235 "Little Miracle" - Emerson Radio & Phonograph
  • Forme
  • Modèle de table sans poussoirs, modèle cheminée
  • Dimensions (LHP)
  • 226 x 143 x 96 mm / 8.9 x 5.6 x 3.8 inch
  • Remarques

  • Selection of six Gem-like color combinations.
    Power Consumption: 45 W.
    Broadcast frequency range: 540 - 1.780 kHz.

     

  • Poids net
  • 2.2 kg / 4 lb 13.5 oz (4.846 lb)
  • Prix de mise sur le marché
  • 17.95 $
  • Source du schéma
  • Beitman Radio Diagrams Vol. 2, 1939
  • Schémathèque (3)
  • Emerson Folder Form. 39-22, 2-39 for 1939.

 Collections | Musées | Littérature

Collections

Le modèle AX-235 "Little Miracle" fait partie des collections des membres suivants.

 Forum

Contributions du forum pour ce modèle: Emerson Radio &: AX-235 "Little Miracle"

Discussions: 1 | Publications: 8

I am currently restoring an example of one of these radios and I have already a fair amount of experience with Emersons. This one has me baffled at present!

The chassis is more or less as factory spec but the tuning coil T1 has been chopped about in the past probably to add LW to the bands. Im not even sure that the coil is correct however I have removed all the added parts and tried to rig up the coil as intended.

The rest of the chassis components appear to be OK and resistors etc seem to buz out fine. As I am in the UK and the sets were 110AC, the line cord (missing) had to be rewired. I do this by feeding 110VAC into the set but put a series 220R resistor in line with the heaters. This allows the HT to run plus also the LT. Im getting approx 5V across each tube heater. Little bit low but still OK.

The problem is that once powered up, the audio stage is good plus the 6Q7 stage but Im not getting any signal. Touching the caps if the 6A8 and 6K7 tubes produce a click but thats it. HT is running at 82V before the speaker field coil and 66V after. Im starting to wonder if I have a bad 6A8 but any help would be useful. What is the HT that I should get?

Pièces jointes

Mark Andrews, 28.Feb.11

Weitere Posts (8) zu diesem Thema.