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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 18th Jan 2019, 11:20 pm   #21
Aitor Eneko
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

And what about the rotary button/push button?

Is there 2 models of this button? I think that there is only one model, and is a rubber and the metal washer with Rev/mc that is a push button. Does anyone have a photo of the rotary button and it’s interior?
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Old 18th Jan 2019, 11:25 pm   #22
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

I've personally never seen anything later than yours having the rotary switch. I don't know why it existed over the push button as usually anything to do with the military had specified non latching.
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Old 18th Jan 2019, 11:44 pm   #23
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Thanks, but have you seen a rotary swicht?
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Old 19th Jan 2019, 12:37 am   #24
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Yes I've seen them. I might even have one somewhere.
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Old 19th Jan 2019, 12:41 am   #25
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Ok, thanks. Could you tell me if that rotary switch is like the one on Richardīs web (so like mine)? because it is not rotary as i said before.
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Old 19th Jan 2019, 12:47 am   #26
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Post #1952 in the survey thread shows one with the switch you are talking about.
https://www.vintage-radio.net/forum/...t=4343&page=98
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Old 19th Jan 2019, 12:57 am   #27
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Ok, i think i now understand. There are 2 push buttons REV/MC, the baquelite one that we find in AVO 8 (mk1) Photo 1, the one like mine that is made of rubber and a washer (photo 2) and the rotary one that Refugee said (photo 3).

If this is correct, perhaps Richards page is wrong Photo 4
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Old 19th Jan 2019, 2:21 am   #28
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Those photos are tiny.
The button on the 9MK4 is different again.
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Old 19th Jan 2019, 12:13 pm   #29
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

What puzzles me is why some of the military ones have this large more complicated pushbutton.

I have not had hands on one of these but thought it was a latching button - push on push off forward reverse. I will amend page if necessary.
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Old 19th Jan 2019, 1:21 pm   #30
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Yes, it is a "normal" push button, do not know why with this rubber and washer, i do not understand.

I attached a photo of the push system, you can see that it is the conventional pushing system, same as others Avo 8 mk2 etc Photo 3

Today, i repair the broken screw that fix the battery cover. I introduced a brass nut and now i am very satisfied with the results. Photo 1 and 2
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Old 19th Jan 2019, 4:04 pm   #31
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Thank you everyone for clarifying the push button types. I have amended the description as follows but if anyone has the appropriate army reference (probably ZD.....) please advise.

This one is the same as the model 8 Mk1 except that it is fitted with an extended metal push button with rubber boot to reverse the moving coil.

This type of pushbutton was used on some miitary versions but not all and some if not all have a steel outer casing with an earthing terminal.

These instruments preceded the Test Set No.1 (see below) which has ranges in multiples of 1 and 3 like the model 9 rather than 1 and 2.5 of the model 8
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Old 19th Jan 2019, 7:16 pm   #32
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

So it is an 8S (MK1) Admiralty Pattern (AP12945) with a tag "A.S.R.E." (Admiralty Signal and Radar Establishment 1948 to 1959).And with a sticker from Navy Department.

So, can any body give any information about the label in the photo that was attached to the handle? See photo.

Thanks

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Old 19th Jan 2019, 7:37 pm   #33
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

..Only that the label must be 1953 or later, due to the ER (Queen Elizabeth II) printed on it.

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Old 19th Jan 2019, 7:45 pm   #34
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

Thanks!!
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Old 4th Feb 2019, 11:08 pm   #35
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Default Re: New (for me) Avo 8 (Mk1) Air Ministry Panclimatic

I finished it. Painted with the same colour, with the battery cover. Just waiting a new movement.
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Last edited by Aitor Eneko; 4th Feb 2019 at 11:30 pm.
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