• Year
  • 1961–1964
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 119866
    • alternative name: Grundig Portugal || Grundig USA / Lextronix

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Superheterodyne (common); ZF/IF 460/10700 kHz; Reflex
  • Tuned circuits
  • 6 AM circuit(s)     9 FM circuit(s)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 115; 220 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: 88U [Export] - Grundig Radio-Vertrieb, RVF,
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 300 x 200 x 150 mm / 11.8 x 7.9 x 5.9 inch
  • Notes
  • Grundig model 88U uses for FM reception the reflex principle in front end (1st triode of ECC85 acts as rf preamp and 1st FM IF stage).
    For BC, the additive mixing principle is used.
  • Source of data
  • - - Data from my own collection

 Collections | Museums | Literature

Collections

The model is part of the collections of the following members.

 Forum

Forum contributions about this model: Grundig Radio-: 88U

Threads: 1 | Posts: 10

Gentlemen,

 

It has been a while since I check in with you.  It has been a great summer here in Pittsburgh PA.  

 

Today I opened up a Grundig 88U.  Three tube AM/FM radio.  The American version I believe.  It has an interlocking power cord (cheater cord) and American words on the back cover.  My question is two fold.

 

1)      It the iron core object an auto transformer, choke or a power transformer with a primary and isolated secondary?  In the European model it is an auto transformer. This makes the radio a hot chassis unit.

 

2)      Is there an American alignment document available?  I tried to locate an “88U” but no success.

 

I will be restoring this radio once I come back from the Kutztown PA swap meet.  I see several paper/wax capacitors that look questionable.  The radio plays but poorly on FM.  All the FM stations are fuzzy and distorted.

 

There are some light blemishes and minor scratches on the red plastic.  I will be using the Novice polish #1, 2 and possibly 3 to restore the original mirror like finish.

 

Thanks,

Paul P.

Paul E. Pinyot † 2013, 18.Sep.07

Weitere Posts (10) zu diesem Thema.