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Old 10th Apr 2024, 3:12 pm   #1
Essex Sight
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Default Attenuators Tapped CF No. 1 MK. 4.

Split from this thread:-

https://www.vintage-radio.net/forum/...d.php?t=210106


Whilst I'm on a roll, do you think anyone on the forum may be able to give advice on our attenuator? We know it is a Military precision attenuator designed for laboratory/workshop/field use, possibly for testing telephone lines but no more. The Plate on the front says
Attenuators Tapped
CF No. 1 MK. 4
ZD. 03012 Serial No.62001
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Old 10th Apr 2024, 11:59 pm   #2
The Philpott
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Default Re: Attenuators Tapped CF No. 1 MK. 4.

The Museum of Power at Langford might be interested, they almost certainly haven't got one! They have a dedicated team of volunteers but also have deep pockets and short arms, so it would be on a donation basis.

It's a nice place to visit when the pumping engine is up and running, but (in my opinion) push for a discount if you're donating something- then be amused by the glare you get in return..

Dave
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Old 11th Apr 2024, 9:35 am   #3
Essex Sight
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Default Re: Attenuators Tapped CF No. 1 MK. 4.

Quote:
Originally Posted by The Philpott View Post
The Museum of Power at Langford might be interested, they almost certainly haven't got one! They have a dedicated team of volunteers but also have deep pockets and short arms, so it would be on a donation basis.

It's a nice place to visit when the pumping engine is up and running, but (in my opinion) push for a discount if you're donating something- then be amused by the glare you get in return..

Dave
Thanks Dave, great suggestion and happy to donate if it's either going to be demonstrated or displayed. I've driven past the museum countless times but never been in, sadly.
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Old 11th Apr 2024, 1:10 pm   #4
2000 type
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Default Re: Attenuators Tapped CF No. 1 MK. 4.

Can't add much other than:
General purpose use on telephone and audio lines.
ZD 03012 re-coded as 6625-99-105-7844.
CF means Constant Frequency.
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Old 11th Apr 2024, 1:46 pm   #5
Essex Sight
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Thumbs up Re: Attenuators Tapped CF No. 1 MK. 4.

Quote:
Originally Posted by 2000 type View Post
Can't add much other than:
General purpose use on telephone and audio lines.
ZD 03012 re-coded as 6625-99-105-7844.
CF means Constant Frequency.
Thank you
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