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 Newcomb Amplifier / Ultra Tone 1C3
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 Return to top of page · Post #: 1 · Written at 5:08:20 PM on 23 July 2018.
Aurther Dungar's Gravatar
 Aurther Dungar
 Location: Brisbane, QLD
 Member since 8 July 2018
 Member #: 2263
 Postcount: 11

I have recently acquired a film amplifier, name on it is Newcomb Amplifier / Ultra Tone.
It for sure needs tons of work, but it has a great patina.
Valve line up is on the left - 5y3 rectifier - Plug in module of 3 10μF caps, two 6L6 tubes ( outputs ) then 3 x 6J7 tubes ( pre amps ).
These numbers are printed on the valve bases.
It has a tone control (left), channel - 2 (mike 2), channel - 1 (phono/mike - 1).
This is an American origin amplifier I.E. -120V.
Still got many original components in it.
Does anybody have a circuit diagram
Or maybe something simuliar ?
Or do we have a link for a good American forum ?

thanks for your help .
dmxtothemax.live.com.au
 
 Return to top of page · Post #: 2 · Written at 5:38:23 PM on 23 July 2018.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

You could try the American antique radio forum http://antiqueradios.com/forums/index.php
 
 Return to top of page · Post #: 3 · Written at 10:58:11 PM on 23 July 2018.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6761

The schematic for that amp ought to be pretty simple to draw from scratch just by following the wiring.
 
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