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Old 10th Jun 2018, 5:45 pm   #1
Tom williams
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Default W.G. Pye signal generator

I found a W.G. Pye signal generator, it is from around 1949 and i have searched all over the internet to find it, but found nothing...
The device is in the pictures bellow.
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Old 10th Jun 2018, 7:10 pm   #2
G6Tanuki
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Default Re: W.G. pye?

The "line" and "frame" settings imply that it was designed for TV use; the coaxial output-socket is a 'Pye-plug' which dates it to the era around WWII.

Pye made loads of RF "stuff" from the 1930s through the 1980s. Is there any other model-number or similar on the rear/
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Old 10th Jun 2018, 7:13 pm   #3
The Philpott
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Default Re: W.G. pye?

Those bakelite paignton knobs were fitted to a wide variety of equipment so a replacement shouldn't be too hard to find. Note the main control increases when turned anti-clock!
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Old 10th Jun 2018, 7:27 pm   #4
ms660
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Default Re: W.G. pye?

Pye Signal Generator Type 940226:

https://www.americanradiohistory.com...l generator%22

For a permanent ref: mag page 442, WW Nov. 1949:

https://www.americanradiohistory.com...ld-1949-11.pdf

Lawrence.

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Old 10th Jun 2018, 9:50 pm   #5
Tom williams
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Default W.G. Pye signal generator

Thank you for the info. I was given it today and I want to know more about the history of it and it's quite an interesting looking machine and has a mains input at the back.

The device also has a "mains voltage adjustment" terminal with two pins on the back, as shown in the photo below:
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Old 11th Jun 2018, 12:33 am   #6
paulsherwin
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Default Re: W.G. Pye signal generator

That looks like a mains connector.
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Old 12th Jun 2018, 12:01 am   #7
turretslug
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Default Re: W.G. Pye signal generator

I expect that it means there is some sort of mains voltage selection (link or switch) accessible underneath the panel once the six screws have been undone- it makes sure (or at least less likely....) that it won't be meddled with the mains lead connected.
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Old 12th Jun 2018, 1:31 pm   #8
m0cemdave
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Default Re: W.G. Pye signal generator

Quote:
Originally Posted by Tom williams View Post
... I have searched all over the internet to find it, but found nothing...
It looks similar in style, but not frequency coverage, to the one fitted as part of a combined rack of test equipment - see this thread:
https://www.vintage-radio.net/forum/...d.php?t=118902
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Old 15th Jun 2018, 10:33 pm   #9
Tom williams
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Default Re: W.G. Pye signal generator

Out of interest, would this thing contain valves (vacuum tubes)
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Old 16th Jun 2018, 12:25 am   #10
AC/HL
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Default Re: W.G. Pye signal generator

Yes, transistors were still in the laboratory back then. Two, possibly three valves.
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