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 Post subject: Admiral 7" resto - the New Zealand way!
PostPosted: May Thu 17, 2018 11:48 am 
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Joined: Apr Fri 28, 2006 12:46 pm
Posts: 1110
Location: Düsseldorf/Germany
Hi,
I saw that in the british forum and it seems to be interesting and worth to copy! :idea: Or not?

http://worldphaco.com/uploads/Admiral_TV..pdf

This story was part of this post:
https://www.vintage-radio.net/forum/sho ... p?t=146559

What do you think about it?

Here is more about "black level", seen in Australia:
https://vintage-radio.com.au/default.asp?f=6&th=223

Regards,
SIXMILLION DOLLARMAN

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ScottyBeamMeUpThereIsNo 4/3-TV/AM OnEarth


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 Post subject: Re: Admiral 7" resto - the New Zealand way!
PostPosted: May Thu 17, 2018 7:41 pm 
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Joined: Aug Thu 12, 2010 6:25 pm
Posts: 175
Location: Durham, NC
I remember that article about the Admiral single-triode scan circuit was posted on the ETF website (somewhere) last year, and I read it carefully, several times. Brilliant design all right. I have no personal experience with it but am in awe of its cleverness.

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A collector of TV signal boosters and UHF converters -- God help me!
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 Post subject: Re: Admiral 7" resto - the New Zealand way!
PostPosted: May Sat 26, 2018 7:30 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 700
Location: Crystal Bay, NV
Although the Admiral uses the same single tube deflection circuit as the Motorola 7" sets, the Motorola has many more interesting features that make it a good performer for a low-price, light-weight set. Circuitry-wise, I would say that the Motorola was the most interesting and advanced 7" set of the early days. Yes, I know the merits of a 10 pound power transformer, real chokes, etc., but that is neither interesting nor very advanced.
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Ron


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 Post subject: Re: Admiral 7" resto - the New Zealand way!
PostPosted: May Sat 26, 2018 7:44 pm 
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Joined: Feb Thu 17, 2011 11:27 pm
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Location: Long Island, N.Y.
TahoeTV wrote:
Although the Admiral uses the same single tube deflection circuit as the Motorola 7" sets, the Motorola has many more interesting features that make it a good performer for a low-price, light-weight set. Circuitry-wise, I would say that the Motorola was the most interesting and advanced 7" set of the early days. Yes, I know the merits of a 10 pound power transformer, real chokes, etc., but that is neither interesting nor very advanced.
=======
Ron

After years of owning all the popular early post-war 7" electrostatic TV's I find them all basically equal in performance. The best in my experience have been the squarish Emersons and Sentinel/Airline verticle portables.


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 Post subject: Re: Admiral 7" resto - the New Zealand way!
PostPosted: May Sat 26, 2018 8:22 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 700
Location: Crystal Bay, NV
The fact that Motorola has 1000v more for the 7JP4 means that it has some brightness advantage. When the other performance issues are the about the same, my vote goes to the lightest, simplest, most stylish solution. Disclaimer: I own no stock in Motorola Radio and TV!,
just a room full of 7" sets.
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Ron


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