831

Garod Radio Corp.; Brooklyn (NY)

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1937 ??
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 41717

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 Specifiche tecniche

  • Numero di tubi
  • 7
  • Numero di transistor
  • Principio generale
  • Supereterodina (in generale); ZF/IF 456 kHz
  • N. di circuiti accordati
  • 6 Circuiti Mod. Amp. (AM)
  • Gamme d'onda
  • Onde medie (OM), lunghe (OL) e corte (OC).
  • Tensioni di funzionamento
  • Alimentazione universale (doppia: CC/CA) / 105-125 Volt
  • Altoparlante
  • AP elettrodinamico (bobina mobile e bobina di eccitazione/di campo)
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: 831 - Garod Radio Corp.; Brooklyn NY
  • Forma
  • Soprammobile con qualsiasi forma (non saputo).
  • Fonte esterna dei dati
  • Ernst Erb
  • Riferimenti schemi
  • Rider's Perpetual, Volume 8 = 1937 and before

 Collezioni | Musei | Letteratura

 Forum

Discussioni nel forum su questo modello: Garod Radio Corp.;: 831

Argomenti: 1 | Articoli: 3

Hello I own a garod 831 modified chassis.

It is Impossible to find exact  schematic diagram on the web  or in rider's schematic   only 831 series chassis

Mobile is console...

dimensions:
height 115         width 64      depth 45         with usual  gold  garod logo,

on the mobile top:

automatic turntable  garrard RC5 made in england 

 

in the mobile  mid:

an 831 garod chassis,  normally labelled,  normal dial scale, seems really a normal 831 chassis,

BUT WITHOUT  25A6 FINAL TUBE.

instead of final tube i see a 5 pin socket...    wiring is two low level audio signals  in phase opposition   from driver  6c5

variants:  

6j8 instead of 6a8    6e5 instead of 6g5   6c5 instead of 6f5 

no final tube ...  in place of final tube only the 5 pin socket  

chassis is 100% original  never modified  never repaired

 

on the mobile bottom:

an alluminium chassis   with 4x12a5 final tubes  (push pull 2+2)   and 3 paralleled 25y5 rectifiers 

push pull output  trasformer is directly mounted  on the mobile  near the speaker

 

alluminum chassis seem made from another factory, another hand...    more cheap assembly   sure less quality,   but the 5 pin socket used for the audio  signals is the same brand on both chassis

seems a little series production or a test....     i think this because tube type is hand writed on the chassis.   ( see the pic)

Also original 831 iron radio chassis is raised by a few centimeters with an additional aluminium support, sure the same material than used on alluminium power amplifier chassis.

I'm thinking    this radio is not a mix, sure original,  perhaps a prototype  from an 831 serie base  or a little production   for me unknown  

please

i need more info

 

ps this radio comes from sweden, but power supply is always 120V              

 

 Thank You  indeed 

Ruzzante Mauro

 

Allegati

Mauro Ruzzante, 12.Aug.12

Weitere Posts (3) zu diesem Thema.