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 Gilfillan Brothers Inc (Los Angeles) GN1 & GN2
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 Return to top of page · Post #: 1 · Written at 8:58:47 PM on 1 April 2015.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5239

Battery Neutrodyne (1924) Coffin.

I have posted this one on a US site as well. Radio Museum has photo this one GN2 is coming in for repair, It is missing it's meter. & I cannot spot a schematic, albeit they are a common TRF pattern.

Any info appreciated. Only difference between GN1 & GN2 is the cabinet & layout.

Marc


 
 Return to top of page · Post #: 2 · Written at 8:19:40 PM on 4 April 2015.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5239

Photo of the set's insides sent to Brad..... Collector took the cabinet home to inflict repairs. It will repair.
That's where wood often wins over plastic: Its easy to find more wood.

Marc

Gillfillan Radio


 
 Return to top of page · Post #: 3 · Written at 10:05:21 PM on 5 April 2015.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5239

Some good news today. A circuit for the exact model was posted on the American forum. Now I know where everything belongs, without having to reverse engineer it.

Marc


 
 Return to top of page · Post #: 4 · Written at 6:46:47 AM on 6 April 2015.
Brad's avatar
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 Location: Naremburn, NSW
 Member since 15 November 2005
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Noting that it is an American radio, is it safe to assume that the AWA transformers are a retrofit?


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A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 5 · Written at 10:26:52 AM on 6 April 2015.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5239

Brad: Not safe. I am waiting for photo's of the meter & perhaps some of it. There was & still are AWA"s in USA.

I note that the one on Radio Museum has two dissimilar. This could indicate reliability issues & I think one of these is open & that is not unusual, I have had others failed.

The ones in it have "Ideal" stamped on top & that may be a clue. In the meantime we keep an open mind on origin.

Marc


 
 Return to top of page · Post #: 6 · Written at 2:38:23 PM on 6 April 2015.
Brad's avatar
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 Location: Naremburn, NSW
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Yes, I have three of the same in my parts bin. AWA on the side and Ideal on the top. Same colour too.


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A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 7 · Written at 4:31:57 PM on 6 April 2015.
MonochromeTV's avatar
 Location: Melbourne, VIC
 Member since 20 September 2011
 Member #: 1009
 Postcount: 1179

Harrington's, with branches in most of the main centres in Australia & NZ, were the sole distributors of Gilfillan radio products. The Gilfillan Neutrodyne ready-built GN1 & GN2 were first sold here by Harrington's in late 1925, early 1926. Prior to this Harrington's were stocking Gilfillan parts for home set builders. This was in the early days of wireless & no import restrictions.

Gilfillan Radio

Is this a Gilfillan GN1 or GN2?

Gilfillan Radio

Or what about this one?

As for "Ideal" transformers, they were indeed made by AWA. And yes, they are Australian made and were unlikely ever seen in the US.


 
 Return to top of page · Post #: 8 · Written at 6:11:07 PM on 6 April 2015.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
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Radio in 1925 was definitely a plaything of the wealthy.

£59/17/9 in 1925 is close enough to $4,600 today.


 
 Return to top of page · Post #: 9 · Written at 8:32:49 PM on 6 April 2015.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
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And a 1/4 acre block of land was something like £100 and in some cases a tad less. How the tables have turned.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 10 · Written at 10:06:33 AM on 7 April 2015.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5239

I have sent Brad a US ad showing both models. As said circuit is the same.

Marc

Gilfillan Neutrodyne Radio


 
 Return to top of page · Post #: 11 · Written at 4:27:51 PM on 7 April 2015.
Brad's avatar
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 Location: Naremburn, NSW
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It always made me wonder why manufactured receivers came as standard without valves and speakers in the 1920s. It'd be like buying a car without wheels or a gearbox. The high cost couldn't be the reason, as the radios were expensive and usually bought on hire purchase anyway. There extra few pounds for the valves and speaker wouldn't have added much to the total burden.

The old "batteries not included" is understandable though, as they are consumables.


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A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 12 · Written at 7:24:20 PM on 7 April 2015.
MonochromeTV's avatar
 Location: Melbourne, VIC
 Member since 20 September 2011
 Member #: 1009
 Postcount: 1179

The US advertisement now clears up my query. The Harrington's of Sydney ad is showing a GN1, not a GN2 as stated. I first noticed this discrepancy on Radiomuseum.

Also, here is an advertisement for Ideal transformers:-
http://trove.nla.gov.au/ndp/del/article/97656007.


 
 Return to top of page · Post #: 13 · Written at 9:50:12 PM on 7 April 2015.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5239

Actually I bought an AutoCad like that, basic package with add on library's for whatever area you were interested in. I bought the one for Electrical & Electronics.

Now would it not be wonderful if a certain OS came like that? That way one would not end up with a HDD cluttered up with space consuming junk features that slowed it down and were of no interest.

Marc


 
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