Two items to identify. - UK Vintage Radio Repair and Restoration Discussion Forum

60 oldjohn · 4th May 2021, 4:52 pm

What is this aluminium scale off?
Other little part?

John.

TonyDuell · 4th May 2021, 4:56 pm

The second item is a small microphone. It was used in some low-end tape recorder I think. At one point Henry's Radio sold off the amplifier PCB, tape head, microphone and speaker as a pack to be used with your own deck mechanism.

Nickthedentist · 4th May 2021, 6:00 pm

Item 2: DAE is the GPO code for A.P. Besson, who made sounders etc.

G6ONEDave · 4th May 2021, 6:08 pm

The first item reminds me of the Advance E2 frequency dial. The second item looks like a microphone as used in the old type pocket fitting hearing aids. The third item could also have been used in a hearing aid, although they were usually silver tin plate finish.

Dave

60 oldjohn · 4th May 2021, 7:08 pm

The second and third photo, if it is a microphone / GPO that sounds feasible.

The scale is about 2mm thick, fairly heavy duty. Its a while since I had an E2.

John.

ms660 · 4th May 2021, 7:11 pm

Scale plate as 4 frequency scales and a REVS. scale, so far as I can make out.

Lawrence.

Herald1360 · 5th May 2021, 1:43 am

Item 1

PCR set, AVO sig gen, Taylor sig gen all look similar but not identical. Frequency range is a bit "odd". Revs might be turns of slow motion dial knob.

G6ONEDave · 5th May 2021, 10:51 am

Had a closer look at my Advance E2 and although the scale looks similar the ranges are different. The E2 goes from 100Kcs to 100Mcs in 6 ranges. The 'revs' range has me intrigued. Given that it goes from 1.2Mcs up to 17.5Mcs, I wonder if was a from a signal generator that was designed for military use.

Dave

HamishBoxer · 5th May 2021, 12:14 pm

Think REVS = revolutions?

m0cemdave · 5th May 2021, 12:33 pm

Yes, something with a 40-turn knob that covers 1.2 - 17.5 Mc/s in 4 ranges, military or professional kit.

Radio Wrangler · 5th May 2021, 1:27 pm

20MHz is about as far up as a lot of Aviation HF bands went, so that may be an additional guide.

David

4th May 2021, 4:52 pm	#1
60 oldjohn Dekatron Join Date: Dec 2004 Location: East Yorkshire, UK. Posts: 3,986	Two items to identify. What is this aluminium scale off? Other little part? John. Attached Thumbnails __________________ My favourite text message "I'll be there in five minutes, if not read again"

4th May 2021, 4:56 pm	#2
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,208	Re: Two items to identify. The second item is a small microphone. It was used in some low-end tape recorder I think. At one point Henry's Radio sold off the amplifier PCB, tape head, microphone and speaker as a pack to be used with your own deck mechanism.

4th May 2021, 6:00 pm	#3
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,843	Re: Two items to identify. Item 2: DAE is the GPO code for A.P. Besson, who made sounders etc.

4th May 2021, 6:08 pm	#4
G6ONEDave Octode Join Date: Dec 2019 Location: Owston Ferry, North Lincolnshire, UK. Posts: 1,701	Re: Two items to identify. The first item reminds me of the Advance E2 frequency dial. The second item looks like a microphone as used in the old type pocket fitting hearing aids. The third item could also have been used in a hearing aid, although they were usually silver tin plate finish. Dave __________________ Quote "All is hyperthetical, until it isn't!" (President Laura Roslin, Battlestar Galactica)

4th May 2021, 7:08 pm	#5
60 oldjohn Dekatron Join Date: Dec 2004 Location: East Yorkshire, UK. Posts: 3,986	Re: Two items to identify. The second and third photo, if it is a microphone / GPO that sounds feasible. The scale is about 2mm thick, fairly heavy duty. Its a while since I had an E2. John. __________________ My favourite text message "I'll be there in five minutes, if not read again"

4th May 2021, 7:11 pm	#6
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Two items to identify. Scale plate as 4 frequency scales and a REVS. scale, so far as I can make out. Lawrence.

5th May 2021, 1:43 am	#7
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,535	Re: Two items to identify. Item 1 PCR set, AVO sig gen, Taylor sig gen all look similar but not identical. Frequency range is a bit "odd". Revs might be turns of slow motion dial knob. __________________ ....__________ ....\|____\|\|__\|__\_____ .=.\| _---\__\|__\|_---_\|. .........O..Chris....O

5th May 2021, 10:51 am	#8
G6ONEDave Octode Join Date: Dec 2019 Location: Owston Ferry, North Lincolnshire, UK. Posts: 1,701	Re: Two items to identify. Had a closer look at my Advance E2 and although the scale looks similar the ranges are different. The E2 goes from 100Kcs to 100Mcs in 6 ranges. The 'revs' range has me intrigued. Given that it goes from 1.2Mcs up to 17.5Mcs, I wonder if was a from a signal generator that was designed for military use. Dave __________________ Quote "All is hyperthetical, until it isn't!" (President Laura Roslin, Battlestar Galactica)

5th May 2021, 12:14 pm	#9
HamishBoxer Dekatron Join Date: Aug 2007 Location: W.Butterwick, near Doncaster UK. Posts: 8,932	Re: Two items to identify. Think REVS = revolutions? __________________ G8JET BVWS Archivist and Member V.M.A.R.S

5th May 2021, 12:33 pm	#10
m0cemdave Octode Join Date: Feb 2009 Location: Bletchley, Buckinghamshire, UK. Posts: 1,219	Re: Two items to identify. Yes, something with a 40-turn knob that covers 1.2 - 17.5 Mc/s in 4 ranges, military or professional kit.

5th May 2021, 1:27 pm	#11
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,867	Re: Two items to identify. 20MHz is about as far up as a lot of Aviation HF bands went, so that may be an additional guide. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done