Issue 151 A publication of the Vintage and Military Amateur Radio Society October 2015

www.vmars.org.uk M0VMW Affiliated to the Radio Society of Great Britain

1 October 2015

Bunker at the “second café to be liberated on D-day”. See below. Photo: G3YYH

From our Chairman

The highlight of the last month for VMARS was certainly the very successful auction on October 24th. There's a report elsewhere in this issue of the News Sheet; about 40 of us had a great time and we raised around £3,500 for the families of Silent Keys and £940 for VMARS after costs. I'd like to thank everyone who contributed through attendance and also the team that prepared and ran the auction, provided the rations, moved

things around and generally made a great day happen. I came away with some useful bits and pieces including a substantial linear 28 V regulated PSU that powers my Clansman 321 very successfully: it just needs a case, fuse, switch, etc.

There will be more auctions over the next months as we empty the store in Wolverhampton. We learnt something at the auction about selling valves and will use a different tack in the future.

Daytime HF conditions have inevitably improved substantially over the last weeks and have made the Saturday morning AM Net a very different occasion. Last Saturday (as I write) was

very interesting, with remarkable amounts of noise and long skip propagation. This made the Net very hard to run and Mike G4BQF and Stuart G0TBI worked hard to keep it together. This is all part of our fascinating hobby.

The Committee meets again later in November. We do need and value your support and I'd like to thank all who have sent messages of encouragement.

Tony Barron G3YYH

The second café liberated on D-day?

Café Gondré is rightly famous as the first café liberated in Normandy on D-day, overnight on 5th/6th June 1944. It is located by Pegasus Bridge on the Orne River, north of Caen. The bridge was captured by D Co 2 Ox & Bucks LI, led by Major John Howard, following a most remarkable example of glider pilotage. There is a museum there that is well worth a visit.

I go to Normandy often to visit my brother, using the Portsmouth/Poole to Cherbourg crossing. Whilst on those journeys I’ve found another café that may claim to be the second café liberated on D-day, just 100 m from Utah Beach at La Madeleine… except that in 1944 it wasn’t a café: it was a bunker attached to a fishermen’s hut that was used as an office by Organisation Todt while controlling the construction of Hitler’s much vaunted Atlantic Wall.

Utah Beach may well have been the easiest of the landing beaches, materially aided by a navigation error caused by tides that resulted in the landing taking place some distance from the site planned. The US 4th Infantry Division landed

VMARS Committee

Chairman:

Tony Barron G3YYH Wren Cottage, Foxcote, Andoversford Gloucestershire GL54 4LP +44(0)7785 376518 chairman@vmars.org.uk tbarron@btinternet.com

Hon. Secretary:

John Keeley GW6RAV 93 Park Crescent Abergavenny

Gwent NP7 5TL

+44(0)1873 850164 honsec@vmars.org.uk

Hon. Treasurer & Publications Manager:

Bronek Wedzicha M0DAF 22 Farmers Way Copmanthorpe, York North Yorkshire Y023 3XX +44(0)1904 708704 treasurer@vmars.org.uk b.wedzicha@btinternet.com

Membership Secretary:

Ron Swinburne M0WSN 32 Hollywell Road Sheldon, Birmingham West Midlands B26 3BX +44(0)1217 421808 memsec@vmars.org.uk

Ordinary Member:

Peter Jones G8CDC Tudor House Stoneleigh Road Blackdown, Leamington Spa Warwickshire CV32 6QR +44(0)1926 883345 peter@air-commuter.co.uk

Ordinary Member:

Martin Smyth M0MGA Bay Tree House 111 Forest Road Whitehill Hampshire GU35 9BA 01420 477071 martin-smyth@tiscali.co.uk

Issue 151 The VMARS News Sheet

October 2015 2

21,000 men for the loss of ‘just’ 197 men. Probably the first building liberated was the fishermen’s hut and its bunker.

The bunker is still there, attached to and partly underneath a café called ‘Le Roosevelt’. What makes it of particular interest to VMARS is that when the hut and bunker were liberated, they were commandeered by US; the hut was used by the US Army 1st Engineer Special Brigade Communication Group and the bunker used as a communications centre for the US Navy, controlling radio traffic between the Fleet and the Front. The 39 radio operators stationed there were members of Command Task Group 127.2.4. Their signatures are still on the walls of the bunker (see cover photo).

More than that, Le Roosevelt has found some appropriate radio equipment to display in both the café and the bunker. In my own knowledge, the equipment has been there for 25 years and is very much part of the ‘feel’ of the café.

Café Le Roosevelt is just a few kilometres from RN13 between Cherbourg and Caen and is a great place to break a journey. The nearest substantial village is Sainte-Marie-du-Mont. Go and take a look!

Tony Barron G3YYH

From RSGB General Manager

Five years ago, the RSGB undertook a comprehensive online survey of amateur radio in the UK. The data were used in the development of a vision and strategy for the Society.

A new survey was launched in September 2015 and all UK radio amateurs are invited to complete the online questionnaire. The questions are largely the same as before, so we can see what has changed since 2010. The number of questions varies depending on your circumstances and the survey should take between 10 and 30 minutes to complete.

The survey can be found at www.rsgb.org/ar-survey and all amateurs are invited to complete it. I would be most grateful if you could publicise this within your organisation.

The survey will remain live until the end of the year and the results will be published in the Spring of 2016

Graham Coomber G0NBI

Follow-up from RSGB President

We’ve got off to a good start with the Survey with around 1400 completed responses, but now is the time to repeat our communication on the matter. At the Spectrum Forum yesterday it was clear that a number of representatives from special interest groups and our committees were unaware of the survey and of the importance of getting as many people as possible to complete the online form. The survey has a link from one of the 9 tiles on the landing page at rsgb.org or alternatively one can use the short URL: www.rsgb.org/ar-survey.

The Survey is open to all radio amateurs who live in the UK, licensed or not, RSGB Members, lapsed Members or those who have never been Members. We also welcome our overseas Members to take part but the Survey is not open to amateurs who live outside the UK and who are not RSGB Members.

Please communicate this again within your committees, etc. The following video may perhaps provide some additional background and encouragement to participate: http://www.essexham.co.uk/news/rsgb-survey-2015.html

John Gould G3WKL

Baginton Auction

On Saturday 24th October 2015 a large group of Members gathered in Baginton Village Hall, all looking forward with eager anticipation to a good day of bidding and buying – and some fun in the process. I think it fair to say that they were not disappointed.

There were some 200 lots and our competent and enthusiastic auctioneer, Stuart G0TBI, did a superb job in getting through them all in the available time. He maintained a good pace, provided good descriptions of the lots as they came up for sale and did an excellent job encouraging bidders to bid! He injected humour to liven up proceedings and kept the assembled multitude well under control by the occasional well directed and gentle barb, including the use of his notorious megaphone. Stuart was ably helped during the auction by Ron M0WSN acting as porter, who pointed out and when possible lifted the lots so that we all knew exactly what we were bidding for. Very few lots did not sell but perhaps the main disappointment, if that’s not too strong a word, is that with a few exceptions the 40 lots of valves proved difficult to sell at other than give-away prices. Bronek M0DAF did a great job recording the bids and at the end of the afternoon producing ‘accounts’ for settlement in quick time. The financial outcome of the auction is recorded elsewhere in this

The VMARS News Sheet Issue 151

3 October 2015

News Sheet. Stuart was ably assisted, both before the day and during the day, by a small team of keen and willing helpers. Our grateful thanks go to everyone involved with the auction for without their keenness and support there would have been no auction.

Finally, we must thank Anne M3TBI and her team for their hard work in the kitchen keeping us well fed and watered. The day would have been much less pleasant without their substantial contribution. Excellent grub!

I’ve not been to many VMARS auctions, but I would rate this one as one of the best. Very enjoyable and very successful – and great fun – is my conclusion. Once again very many thanks to all those who contributed, in whatever way, to the event.

Derek Thom G3NKS

Saturday AM Net-Controller’s Rota

Date 1st op 2nd op 3rd op

21st Nov G3YYH G8AQN M1PVC

28th Nov G8AQN M1PVC G0TBI

5th Dec M1PVC G0TBI G3XGW

12th Dec G0TBI G3XGW M0TCM

19th Dec G3XGW M0TCM M0DAF

26th Dec M0TCM M0DAF M0YMK

2nd Jan M0DAF M0YMK G4GEN

Bronek Wedzicha M0DAF

Newark Hamfest: Corrections to NS150

It's "Camb-Hams" not "Cam-Hams"; we are Hams from Cambridgeshire, not from the river Cam. Geoff is G0DDX not G0DUX. Many of you will have met "Flossie" our mobile shack; what you might not be aware of is that she is about to be retired. She has terminal corrosion and no third gear so we won't even be attempting to get her a new MOT certificate at the end of this month (she is also old enough to buy her own drinks in the pub now). Plans are under-way to replace her (with Flossie II) and the cost of this is being raised by donations from various people and organisations.

Colin Tuckley G8TMV

Helplines questions 151/1Vintage Wireless Repair

I am looking for a vintage radio club or someone who does this hobby, to help me learn how to repair vintage wireless, hopefully someone in the Manchester UK area, or near to. I contacted Graham Coomber (RSGB) and he gave me your Chairman’s email address. The Vintage Military and Wireless Association is based in Nottingham but this would be too far for me to travel, I hope you can help me find a group or a member who lives near me whom I could contact. Please reply via Tony Barron G3YYH

Derek Nuttall

Committee Notices Spectrum Forum

1) Ofcom have issued an updated 'Amateur Radio - Guidance for Licensees' document. It clarifies many areas of the licence and the amateur radio service. Quite lengthy at 24 pages, but worth a read and would be very useful for people studying for their full licence as it explains licencing conditions in a more human way than the licence itself. See:

licensing.ofcom.org.uk/binaries/spectrum/amateur-radio/guidance-for-licensees/

2) The long awaited WRC-15 Conference started on 2nd November2015

A short form agenda is available at: http://rsgb.org/main/news/special-focus/wrc-15/

Comments from the Spectrum Forum Chairman Murray Nimian include the following:

"Following on from Ian’s report regarding all the work that has gone into 5MHz…

WRC-15 has finally started with Colin G3PSM in the thick of it. In the first of what we hope are series of updates…

From some other inputs I can see (including a host of objections) it is going to be tough…"

Ron Swinburne M0WSN

Applications for Membership

We wish to welcome the following new applicants for VMARS Membership:

Name, Callsign (Region) Interests

Mr P Fry G4SBF Southampton

Own and use National HRO and Codar AT5.

Mr S Marsh G4BWG West sussex

Restoration and collecting vintage equipment. Currently working on TCS12 TX & RX, R1475 RX.

[Membership rules require names of applicants for Membership to be published, before they are formally accepted as Members. This allows existing Members to object, if they wish. If you want to object to any of the above, please write to our Hon Sec, John Keeley – Ed.]

Sending in articles, news items, letters and advertisements for VMARS Publications

Please send copy to Colin Guy G4DDI by post or e-mail, 7 Herrick Court, Clinton Park, Tattershall, Lincs. LN4 4QU Tel 01526 344715 g4ddi@vmars.org.uk The copy deadline for the next issue of the News Sheet is 15th September. For articles for the next issue of Signal the deadline is 9th November, but copy would be appreciated as far in advance as possible.

Issue 151 The VMARS News Sheet

October 2015 4

Advertisements FOR SALE: Labgear LG300 plus PSU and modulator. May need slight TLC to function, but all complete, as seen on display once upon a time at Newark. Offers around £400 (I shall wait for 14 days after the publication of the News Sheet to give those away on hols or other excursions an opportunity to make an offer).

RCA AR88 Receiver. Working condition. £85.

Marconi CR100. Illuminates but no audio at this stage, all complete inside, so you will need to get your schematics out, but nice coloured turret tuning dial. £60.

Clansman early 50 A PSU, condition unknown (not tested) as it has unusual connectors upon it, looks to be all complete. £40.

Racal ALE Unit for Racal Syncal 2000, vehicle borne unit in good working condition. £100.

Photographs supplied upon request to interested parties.

Apologies, the WS 62 has still not surfaced, I am working on that, buried somewhere. I shall also be sorting other bits out in the next month or so, so keep watching

Stuart McKinnon G0TBI 0044 1384 872157 stuartjmckinnon@aol.com

FOR SALE: I attach photographs of my late Father's HRO

with PSU and 8 coil packs.

Sensible offers please to:

Trevor Westbrook (NM) 01582 475115 (Bedfordshire)

___________________________________________________________________________________________________________________

FOR SALE: A small collection of VMARS-type radio equipment which belonged to my late brother-in-law G3CRP.

The VMARS News Sheet Issue 151

5 October 2015

The collection (pictured above) consists of the following: 2 R1155s, type A and L 2 19 Sets Mk3, British and Canadian 2 MCR1 spy sets 1 Drake SSR-1 Rx (triple conversion, Wadley-loop, 500kHz–30MHz) 1 Mosley CM-1 RX (double conversion, 80–10m) 1 Mosley Commando 2 TX (80–10m,100 W, AM/SSB) 1 KW Valiant TX with PSU 1 19 Set Wavemeter 1 TCS12 ATU They are all in full working order and in excellent 'collectors condition'. Please phone me if you are interested in any of the items.

Gerald Brigham G3 LEO 01845 567519 North Yorkshire

WANTED: At the recent auction I purchased an AFV version of the WS31. I require a 12 way Plessey Mk4 fine thread free socket to interface with it via the rear panel plug.

Steve Parnell 07973 830520

WANTED: One of my long-term projects is to build up, to the extent feasible, an H2S MkIIB system. Of the various units in

the system, one that I have failed to find so far is an example of the Power Unit Type 280. It's probably a long-shot, but does anyone have one they would be prepared to sell to me? Being realistic, the chance of finding a complete one in good condition is probably not high, but I would be interested in anything in any condition which could be used as the basis of a rebuild, or to provide parts. A rusty old chassis could be measured up to enable a replica to be made.

Andy Young, M0FYA 01254 854490 andy-young@supanet.com

VMARS Auction (24th October 2015) Hammer Prices

#1 Park Air Volmet receiver £10.00

#2 Cossor CGR1020 UHF airband receiver £10.00

#3 Marconi Marine Sentinel receiver s/n 1273 £40.00

#4 Telefunken E748 1.6-22 MHz £22.00

#5 Widney Aish power pack 240 VAC-14/28 VDC

£48.00

#6 Power Supply Unit No. 42 £16.00

#7 Frequency meter BC221-AF £10.00

#8 Frequency meter BC221-AF £8.00

#9 Frequency meter TS-174/U 20-250 MHz £8.00

#10 Frequency meter BC221-T 125 kHz-20 MHz

£8.00

#11 German field T/R with headset and leads £30.00

#12 Power unit?? Ref: 10K/115V £7.00

#13 Wireless Set No. 31 with antenna £20.00

#14 Type R1132A receiver (goes with item 12?) £10.00

#15 Type R1132A receiver £8.00

#16 Type 1155A receiver + power supply unit £94.00

#17 Type RA-1B aircraft receiver +power unit £90.00

#18 Receiver RX78SS £52.00

#19 Receiver Standard Radio VHF STR12D/50/30-LRE-35R

£3.00

#20 FDK Multi 700 2 m transceiver +PSU £20.00

#21 Type R1155A receiver. s/n 55748 £42.00

#22 Type R1155A receiver. s/n 44777 £78.00

#23 Type R1155A receiver. No plate £65.00

#24 RCA AR88 £22.00

#25 RCA AR88 £20.00

#26 ND Type HRO-MX receiver £30.00

#27 ND Type HRO receiver £26.00

#28 Power supply for items 26 and 27 £12.00

#29 Phillips Lamps Ltd Type PCR Receiver £30.00

#30 Northern Electric No.19 MkIII RCA 107127-202

£250.00

#31 Eddystone Model 770U £20.00

#32 Canadian Marconi No. 52 Remote Receiver £80.00

#33 Power supply connected to items 31 and 32

£2.00

#34 12 W audio amplifier + PSU £3.00

#35 Standard Radio?? £12.00

#36 Pack of coils for 480-960 kHz, 1.7-4 MHz, 3.5-7.3 MHz, 7-14.4 MHz, 14-30 MHz

£44.00

#37 Belmont Radio BC348L receiver £48.00

#38 Power supply 7.5 or 12 V 2.5 A £14.00

#39 Wireless Set No.31 + empty case + tuning capacitor

£40.00

#40 Transceiver WS 38 MkIII £42.00

#41 Transceiver WS 38 MkIII £40.00

#42 Frequency meter BC221-AF with steel bound calibration book MC-177-AC

£7.00

#43 144 MHz converter 2-4 MHz output 12 V module

£4.00

#44 Pair VHF PMR model PD-4521 £5.00

#45 Wireless Set No. 88 Type A with 2 pairs of phones

£32.00

#46 Switchboard AC No. 1 £5.00

#47 Wireless Set No. 17 MkII £65.00

#48 MFJ Versatuner II Model MFJ-941D £50.00

#49 Transreceiver type 1985 £9.00

#50 Dual power supply c. 800 W, less than 50 VDC

£6.00

#51 Reception Set R107 complete £26.00

#52 Reception Set R107 incomplete, spares £8.00

#53 Reception Set R209 £50.00

#54 Wireless Set Burndept BE201 £42.00

#55 Power Supply Canada General Electric Co. £90.00

#56 Zenith variac autotransformer £18.00

#57 Plessey receiver PR155 £70.00

#58 2 metre halo £14.00

#59 Two-way antenna switch £11.00

#60 Three framed prints T1154-R1155 £8.00

#61 Four-way antenna switch £20.00

#62 Antenna kit £32.00

#63 Assorted books £10.00

#64 AV0-8 + case £14.00

#65 AVO minor + case £12.00

#66 Band 2 circular folded dipole £10.00

#67 Box of assorted bits and crystals £7.00

#68 Box of assorted bits £3.00

#69 Box of assorted books £5.00

#70 Box of bound Shortwave Magazines £5.00

#71 Bundle of mains leads £2.00

#72 Converter kit £6.00

#73 Electronic Visuals EV411 composite waveform monitor

£5.00

#74 Equipment case £32.00

#75 Ferguson Flair £10.00

#76 FL Ltd panel meter £2.00

#77 GPO Ohmeter No. 15B £22.00

#78 Homebrew DC PSU £1.00

#79 Homebrew PSU R1155 LT £2.00

#80 Homebrew PSU R1155 HT £5.00

Copyright Notice

The VMARS News Sheet is a publication of the Vintage and Military Amateur Radio Society. Copyright remains vested in the authors, thus no material in this News Sheet may be copied and published elsewhere, in part or in full, by any means, without the express permission of the author. This may be sought either from the author direct, or from the News Sheet Editor, Bronek Wedzicha M0DAF.

Issue 151 The VMARS News Sheet

October 2015 6

#81 Homebrew PSU (unknown) £20.00

#82 HR28 receiver spares £20.00

#83 HRO coil packs £68.00

#84 HRO coil packs £28.00

#85 HRO coil packs £12.00

#86 KW antenna switch £22.00

#87 Large T1154-R1155 framed prints £32.00

#88 Levell TG150DM RC Oscillator £10.00

#89 Mains transformer Gresham £8.00

#90 Marconi HR28 receiver £95.00

#91 Marconi TF 995A signal generator £8.00

#92 Marconi TF 1246 signal generator £22.00

#93 Micronta 50K multimeter £9.00

#94 Military antenna £8.00

#95 OS430 Gould digital storage scope £20.00

#96 OS440 Gould digital storage scope £15.00

#98 Plug type 209 £33.00

#99 R1155 Jones plug £32.00

#100 R1155 receiver (tatty) £7.00

#101 Spare valve box No.13 £32.00

#102 TU7 tuning unit £4.00

#103 Unknown receiver £38.00

#104 Weller TCP soldering iron station £35.00

#105 Kit built VHF transceiver 4M £5.00

#106 Telford TC10 2m Multimode Radio £12.00

#107 Gould OS1200 Oscilloscope £10.00

#108 Trio JR310 receiver £20.00

#109 Telequipment D54 Oscilloscope £12.00

#110 US Signals BC1066 UHF Receiver £22.00

#111 US Signals BC1066 UHF Receiver £24.00

#112 Marconi TF2002B Signal Generator £20.00

#113 Marconi TF144H/4 Signal Generator £7.00

#114 Star SR550 Ham Band Receiver £2.00

#115 Avair AV-200 SWR Meter £32.00

#116 2 ele beam, diamond reflector, TGM Communications Model MQ-26 Six Band Hybrid Quad Antenna 20,17,15,12,10 incomplete

£10.00

#117 RT351, SURF, 20 W RF amp, whips, battery, frame, accessories in pouch

£85.00

#118 RT320, bergen, frame, battery, whips, accessories in pouch

£110.00

#119 Codar PR30 Preselector £22.00

#120 AVO8 Mk III £12.00

#121 Maplin N78AR temp controlled iron £30.00

#122 Homebase 40w Iron £5.00

#123 100VA 240 to 110 volt AC transformer £1.00

#124 2 component storage drawers £28.00

#125 4 boxes components £52.00

#126 3 boxes radio brick a brack £26.00

#127 1 reel cable: 1mm twin and earth £6.00

#128 Lots 128 and 129 merged: technical books £3.00

#130 CB Whip Aerial £9.00

#133 1132 original case/box £120.00

#134 R1155 much modified but working £46.00

#135 AR88 Working rack mounted £34.00

#136 Racal RA 17 working £86.00

#137 Redifon RT1001 synthesised receiver £230.00

#138 Hallicrafters SX 28A Skyrider working £46.00

#139 CR100 wrecked with 'Y' switch on it ? £10.00

#140 Johnson Viking Invader TX working £160.00

#141 Yaesu FT 102 working (just) £80.00

#142 KW 2000 Viceroy with internal PSU not known if working

£18.00

#143 KW Viceroy with no external PSU £14.00

#144 Larkspur A13 TRFA £22.00

#145 Larkspur microphone £10.00

#146 Clansman loudspeaker £24.00

#147 Clansman pouch: accessories including hand generator

£35.00

#148 Clansman DCCU, 28 V, marked 'fault' £5.00

#149 Clansman DCCU, 28 V £20.00

#150 Clansman DCCU, 14 V £28.00

#151 Clansman pouch £10.00

#152 Pye mobile transceiver 50MHz £10.00

#153 Philips mobile transceiver MX294 6m £8.00

#154 Weller soldering iron station new – no iron £22.00

#155 V1 4 off Pinnacle EF86 £10.00

#156 V2 2 off Pinnacle 6BH6 £5.00

#157 V3 2 off Mullard EL34 £60.00

#158 V4 3 off Mullard EF86 (Mint) £15.00

#159 V5 3 off Mullard 12AX7 (ECC83) £10.00

#160 V6 2 off Mullard EL85 £4.00

#161 V7 2 off EF91 £1.00

#162 V8 2 off Mullard EF89

#163 V9 2 off ECF 82 (6U8) £2.00

#164 V10 2 off Sylvania 6SN7 £5.00

#165 V11 1 off E180F + 1 off ECC83 £7.00

#166 V12 4 off GEC EL38 £5.00

#167 V13 2 off 6X5GT BNIB ! £10.00

#168 V14 2 off 6SL7 (Crows Foot) £4.00

#169 V15 2 off KT33 £5.00

#170 V16 2 off VR503 (used) £4.00

#171 V17 1 off Raytheon 6L7 + 1 off 5V4G (De Banks)

£2.00

#172 V18 2 off 6BR7 £2.00

#173 V19 2 off CV1503 £2.00

#174 V20 1 off 6J5GT + 1 off DK 96 £3.00

#175 V21 1 off EL500 + 1 off 6K7G £4.00

#179 V25 2 off CV717 £13.00

#180 V26 2 off QQV03-10 £5.00

#181 V27 2 off CV2799 £2.00

#182 V28 3 off 12AU6 £4.00

#183 V29 4 off Metalised 6L6 (2New2Used) £22.00

#184 V30 1 off CV187 £5.00

#185 V31 2 off RCA 6C6 Boxed £6.00

#186 V32 2 off CV2851 £2.00

#187 V33 2 off CV216 (VR150’s) £10.00

#188 V34 2 off Mazda Pen 383’s £2.00

#189 V35 2 off CV65 £2.00

#190 V36 2 off CV1347 £9.00

#191 V37 2 off Mullard EF95 £2.00

#192 V38 2 of EZ81 £6.00

#193 V39 2 Pinnacle 12AU6 £2.00

#194 V40 2 Telefunken ECC86 £6.00

#195 GSA Kit by Clansman £14.00

#196 Assorted Anteena kit £10.00

#197 Dymo machine £6.00

#198 3 Lamps, distributor box + spare £32.00

#199 Large number of cable ties £8.00

#200 Murphy domestic radio £5.00

#201 Box of bits £4.00

#202 M6EDK donation: key type D RAF key £12.00

#203 Jane's military commumications 1984 £20.00

#204 Electret microphones £1.00

#205 Electret microphones £1.00

Electret microphones £1.00

Electret microphones £1.00

Electret microphones £1.00

2 Larkspur headsets £2.00

2 Larkspur headsets £2.00

2 Larkspur headsets £2.00

88-Set handset £5.00

Headphones £4.00

Microphone Hand No. 3 £4.00

31-Set headset £5.00

Microphone Hand No. 3 £6.00

Microphone Hand No. 16 £5.00

Microphone Hand No. 4A £5.00

Microphone Hand No. 16A £6.00

Microphone Hand No. 3 £5.00

Microphone Hand No. 3 £5.00

Microphone Hand No. 3 £5.00

Headphones £5.00

Headphones £3.00

Headphones £5.00

4-pin plug £2.00

Airmec wave analyser A53 £3.00