Showing 55 items matching "transistor"
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Wodonga & District Historical Society IncFunctional object - Transistor Radios, Sanyo Electric Co. Pty. Ltd, 1970s
... Transistor Radios...The first transistor radio (the Regency TR-1) was produced by Regency Electronics in cooperation with Texas Instruments in 1954. ...4 pocket transistor radios of various brands. No. 1 orange Sanyo RP 1280 manufactured in 1979/1980. ...Transistor Radios Functional object Transistor Radios Sanyo Electric Co. ...The first transistor radio (the Regency TR-1) was produced by Regency Electronics in cooperation with Texas Instruments in 1954. Transistor 4 , the AWA transistor radio was manufactured by Amalgamated Wireless Australasia Limited (AWA), Australia's largest and most prominent twentieth century producer of radios, televisions, audio and telecommunications equipment. Transistor radios went on to become the most popular electronic communication device of the 1960s and 1970s. Billions of transistor radios are estimated to have been sold worldwide between the 1950s and 2012. They were exceptionally popular amongst young people in Australia due to their portability, allowing them to be taken wherever you wanted to gather with friends or, due to the headphone attachment, without disturbing those around you. These pocket radios are representative of technological developments which had a vast influence on social life and activities throughout Australia.4 pocket transistor radios of various brands. No. 1 orange Sanyo RP 1280 manufactured in 1979/1980. No2. is white bakelite No. 2 K--181 pocket transistor made by the Kmart Corporation c1975 and No. 3 is a Nation Brand AM Portable Receiver made in Hong Kong c1980. No. 4 Is an AWA Radiola B121 Solid State pocket transistor. All of them include a socket to plug in an ear piece.No. 1 on the front "SANYO RP 1280 and tuning dial. On the back: "SANYO MODEL RP 1280/ DC 3 V 2 x "AA" BATTERY/ SANYO ELECTRIC CO. LTD." No. 2 on the front "K-181" and tuning dial. On the back "Code 600-857/ AM POCKET RADIO/DC-3VC (UM-3x2)/ART 181. HONG KONG" No. 3 AM Portable Receiver Nation Brand on front No 4. on the front: below dial - AWA Radiola B121 ad at bottom "SOLID STATE" On the back: AWA Thorn Consumer Products Pty. Ltd./Model No. B121/Batteries 2 x UM-3 OR AA Cells/AM 520 -1620KHz/ Serial No. 75686/ Made in Hong Kong"radio communications, transistor radio -
Wodonga & District Historical Society IncFunctional object - Haeusler Collection Mid 20th Century AWA Transistor Radio, Amalgamated Wireless Australasia Limited
... Haeusler Collection Mid 20th Century AWA Transistor Radio...The Haeusler family were one of several German families to migrate from South Australia to Wodonga in the 1860s. This transistor radio was manufactured by Amalgamated Wireless Australasia Limited (AWA), Australia's largest and most prominent twentieth century producer of radios, televisions, audio and telecommunications equipment. ...A mid-century cream, blue and gold chrome portable transistor radio manufactured by AWA...A mid-century cream, blue and gold chrome portable transistor radio manufactured by AWA Haeusler Collection Mid 20th Century AWA Transistor Radio Functional object Haeusler Collection Mid 20th Century AWA Transistor Radio Amalgamated Wireless Australasia Limited ...The Wodonga Historical Society Haeusler Collection provides invaluable insight into life in late nineteenth and early twentieth century north east Victoria. The collection comprises manuscripts, personal artefacts used by the Haeusler family on their farm in Wodonga, and a set of glass negatives which offer a unique visual snapshot of the domestic and social lives of the Haeusler family and local Wodonga community. The Haeusler family migrated from Prussia (Germany) to South Australia in the 1840s and 1850s, before purchasing 100 acres of Crown Land made available under the Victorian Lands Act 1862 (also known as ‘Duffy’s Land Act’) in 1866 in what is now Wodonga West. The Haeusler family were one of several German families to migrate from South Australia to Wodonga in the 1860s. This transistor radio was manufactured by Amalgamated Wireless Australasia Limited (AWA), Australia's largest and most prominent twentieth century producer of radios, televisions, audio and telecommunications equipment. This item has well documented provenance and a known owner. It forms part of a significant and representative historical collection which reflects the local history of Wodonga. It contributes to our understanding of domestic and family life in early twentieth century Wodonga, as well as providing interpretative capacity for themes including local history and social history. A mid-century cream, blue and gold chrome portable transistor radio manufactured by AWAlogo on face of radio: "AWA". Numbers on circular tuning panel. radio, music, electronics, awa radios, haeusler collection, haeusler, wodonga -
Moorabbin Air MuseumBook - Transistor circuits, Principles of Transistor Circuits
... Principles of Transistor Circuits...Transistor Circuitry ...Moorabbin Air Museum Moorabbin Airport 12 First Street Moorabbin melbourne Transistor Circuitry Introduction to the design of amplifiers, receivers & other circuits, circa early 1960s Principles of Transistor Circuits Book Transistor circuits ...Introduction to the design of amplifiers, receivers & other circuits, circa early 1960snon-fictionIntroduction to the design of amplifiers, receivers & other circuits, circa early 1960s -
Anglesea and District Historical SocietyRadio, Sharp, 1956 - 63
... ...transistor...Sharp transistor radio (2 band) manufactured in Japan with reverse painted plastic (ie painted on the inside of the plastic preventing wear or damage to the artwork). ...2 BAND TRANSISTOR 8. Front: ON/OFF Band Numbers. ...Anglesea and District Historical Society 5B McMillan Street Anglesea great-ocean-road radio transistor sharp 2 BAND TRANSISTOR 8. Front: ON/OFF Band Numbers. ...Sharp transistor radio (2 band) manufactured in Japan with reverse painted plastic (ie painted on the inside of the plastic preventing wear or damage to the artwork). (Classic to Japanese radios of this vintage). Includes brown leather case and ear phones in separate container.2 BAND TRANSISTOR 8. Front: ON/OFF Band Numbers. VOL / 8 / SHARP Side switch: SW/BC Back: JAPAN radio, transistor, sharp -
National Vietnam Veterans Museum (NVVM)Functional Object - Sanyo Silver and black twin speaker transistor radio with silver handle, 1971
... Silver and black twin speaker transistor radio with silver handle. Battery operated....Sanyo Tetrasound Model 12X-630 12 Transistor 4 Band....Transistor radio Radio Sanyo Sanyo Tetrasound Model 12X-630 12 Transistor 4 Band. ...Silver and black twin speaker transistor radio with silver handle. Battery operated.Sanyo Tetrasound Model 12X-630 12 Transistor 4 Band.transistor radio, radio, sanyo -
Whitehorse Historical Society Inc.Audio - Radio
... Battery operated transistor portable radio. Enclosed in a brown leather case with handle on top. ...AWA RADIOLA Transistor Eight....Whitehorse Historical Society Inc. 2-10 Deep Creek Road Mitcham melbourne Used by Mrs Johns of Orient Ave Mitcham about 30 years ago. communication radio AWA RADIOLA Transistor Eight. Battery operated transistor portable radio. ...Used by Mrs Johns of Orient Ave Mitcham about 30 years ago.Battery operated transistor portable radio. Enclosed in a brown leather case with handle on top. Opens at back for placement of batteries. Metal front, glass dial with tuning and volume knobs.AWA RADIOLA Transistor Eight.communication, radio -
Moorabbin Air Museum
Manual (Item) - Northern Radio Company Transistor Power Supply Type 258 Model 1, Instruction Book Transistor Power Supply Type 258 Model 1
... Instruction Book Transistor Power Supply Type 258 Model 1...Moorabbin Air Museum Moorabbin Airport 12 First Street Moorabbin melbourne Northern Radio Company Instruction Book Transistor Power Supply Type 258 Model 1 Manual Northern Radio Company Transistor Power Supply Type 258 Model 1 ...Northern Radio Company -
Moorabbin Air Museum
Book (Item) - An Introduction to Counting Techniques and Transistor Circuit Logic
... An Introduction to Counting Techniques and Transistor Circuit Logic...Moorabbin Air Museum Moorabbin Airport 12 First Street Moorabbin melbourne An Introduction to Counting Techniques and Transistor Circuit Logic Book An Introduction to Counting Techniques and Transistor Circuit Logic ... -
Moorabbin Air Museum
Poster (Item) - Transistor Users Guide TIDS 67:21
... Transistor Users Guide TIDS 67:21...Moorabbin Air Museum Moorabbin Airport 12 First Street Moorabbin melbourne Transistor Users Guide TIDS 67:21 Poster Transistor Users Guide TIDS 67:21 ... -
Moorabbin Air Museum
Manual (Item) - CSIRO Radiophysics Transistor DME Airborne Set
... CSIRO Radiophysics Transistor DME Airborne Set ...Moorabbin Air Museum Moorabbin Airport 12 First Street Moorabbin melbourne CSIRO Radiophysics Transistor DME Airborne Set Manual CSIRO Radiophysics Transistor DME Airborne Set ... -
Wannon WaterTwo way radio, Hayakawa Electric Co., Ltd Japan
... Push Button on the left (Press to Talk), also red wheel for turning transistor on and adjusting volume. Aerial on the right at the top. ...Front: 9 Transistor/Sharp/ Model CBT-1A Back: Earphone/ Press to Talk/ Made in Japan Handwritten on a piece of tape: Batteries replaced 1-5-1968, 6-6-1975...Push Button on the left (Press to Talk), also red wheel for turning transistor on and adjusting volume. Aerial on the right at the top. ...Front and back cover made of metal and held together at the back with a screw. Push Button on the left (Press to Talk), also red wheel for turning transistor on and adjusting volume. Aerial on the right at the top. Aerial 1.40 m long when extended. Front cover has inbedded a silver square metal mesh for hearing sound and speaking. Brown leather cover with zip for protection.Front: 9 Transistor/Sharp/ Model CBT-1A Back: Earphone/ Press to Talk/ Made in Japan Handwritten on a piece of tape: Batteries replaced 1-5-1968, 6-6-1975 -
Mont De LanceyTransistor radio
... Early green transistor radio with hard plastic cover....Transistor radio ...Belonged to Mrs. Whiteley, mother of Jill Sebire. Used in the 1940's.Early green transistor radio with hard plastic cover.radio equipment, transistors, electronic equipment -
Stawell Historical Society Inc
Transistor Amplifier Circuit Test Box, Unilab Test Box, c 1960
... Black Plastic box with circuit diagram etched in lid. Transistor can be plugged in the top...Stawell Historical Society Inc 46 Longfield St Stawell grampians Used by science Department Physics Classes at Stawell Technical School Scientific Education Unilab Black Plastic box with circuit diagram etched in lid. Transistor can be plugged in the top Unilab Test Box Transistor Amplifier Circuit Test Box ...Used by science Department Physics Classes at Stawell Technical SchoolBlack Plastic box with circuit diagram etched in lid. Transistor can be plugged in the topUnilabscientific, education -
National Vietnam Veterans Museum (NVVM)Functional Object - Phillips black and silver transistor radio in a brown case, 1970
... Phillips black and silver transistor radio in a brown case - with side buckles for a shoulder strap...Transistor radio Radio Phillips Radio Cosmopolitan Philips "J. ...Phillips black and silver transistor radio in a brown case - with side buckles for a shoulder strapCosmopolitan Philips "J. Scannell" (inside cover)transistor radio, radio, phillips radio -
Deaf Children AustraliaPolyphon & Fortiphone hearing aids, Polyfon: from 1956-? Fortiphone: up to 1955
... Black box with "Sonotone" on lid with red felt & cream linings, containing two hearing aids: one silver hearing aid with black back using AA batteries with clip, Polyfon "popular" transistor (Body) hearing aid, and one silver hearing aid using 2 batteries: H.T & L.T. batteries with clip: Foriphone Model 40 Hybrid hearing aid. ...Inside battery compartment "MODEL 4.0 / TRANSISTOR / FORTIPHONE / ENGLAND / PAT 634202 / 175026". ...Inside battery compartment "MODEL 4.0 / TRANSISTOR / FORTIPHONE / ENGLAND / PAT 634202 / 175026". ...Black box with "Sonotone" on lid with red felt & cream linings, containing two hearing aids: one silver hearing aid with black back using AA batteries with clip, Polyfon "popular" transistor (Body) hearing aid, and one silver hearing aid using 2 batteries: H.T & L.T. batteries with clip: Foriphone Model 40 Hybrid hearing aid. No ear pieces. Probably the 'old' hearing aids put in the 'new' hearing aid box. Box "Sonotone" on lid of box. Hearing aid 1. "POLYFON' in blue on bottom edge "POPULAR/SER NO 22155" on battery compartment. Hearing aid 2. Inside battery compartment "MODEL 4.0 / TRANSISTOR / FORTIPHONE / ENGLAND / PAT 634202 / 175026". Instructions re: batteries. 30V H.T battery and L.T. battery -
Bendigo Military MuseumMemorabilia - RADIO, 1960’s
... Sharp 8 transistor radio MW SW SW2 Bands Black plastic case Damaged leather strap ...Refer Cat No 1664.2 for details. personal effects communications radio Bertuch “Model BY-150” Sharp 8 transistor radio MW SW SW2 Bands Black plastic case Damaged leather strap Memorabilia RADIO ...Item bought in Soth Vietnam by Wesley BERTUCH during army service. Refer Cat No 1664.2 for details.Sharp 8 transistor radio MW SW SW2 Bands Black plastic case Damaged leather strap “Model BY-150”personal effects, communications, radio, bertuch -
Whitehorse Historical Society Inc.Audio - Radio
... Cream plastic case enclosing a transistor radio. Silver panel encloses dial etc. ...Whitehorse Historical Society Inc. 2-10 Deep Creek Road Mitcham melbourne Radio was used by donors mother. communication radio Solid State - K Mart Cream plastic case enclosing a transistor radio. Silver panel encloses dial etc. ...Radio was used by donors mother.Cream plastic case enclosing a transistor radio. Silver panel encloses dial etc. Plastic carrying strap forms handle.Solid State - K Martcommunication, radio -
Moorabbin Air Museum
Book - Basic Theory And Application Of Transistors, Transistors
... Transistors...Moorabbin Air Museum Moorabbin Airport 12 First Street Moorabbin melbourne Transistors Transistors & transistor circuits Non Fiction . ...Non Fiction . Overview of trasistor technology for electronics technicians & other technical workers interested in transistors & transistor circuitsNon Fiction . Overview of trasistor technology for electronics technicians & other technical workers interested in transistors & transistor circuitstransistors & transistor circuits -
Whitehorse Historical Society Inc.Audio - Radio
... The radio (Transistor) belonged to the donor who was a member of the Society....Whitehorse Historical Society Inc. 2-10 Deep Creek Road Mitcham melbourne The radio (Transistor) belonged to the donor who was a member of the Society. communication radio audio-visual technology audio - visual appliances Oblong aluminium radio in black Vinyl case with Velcro fastener. ...The radio (Transistor) belonged to the donor who was a member of the Society.Oblong aluminium radio in black Vinyl case with Velcro fastener. A set of stereo earphones with foam rubber covers can be attached to the radio via an input on the radio.communication, radio, audio-visual technology, audio - visual appliances -
Bendigo Military MuseumMemorabilia - RADIO, 1960’s
... Large Transistor Radio Black with chrome coloured face handle on top four dials on the front Rear has World timetable adjustable five sockets for various points Band 9 Transister...Refer Cat No 1664.2 for details. personal effects communications Radio Bertuch “HI FI Sound Deluxe National Panasonic” Large Transistor Radio Black with chrome coloured face handle on top four dials on the front Rear has World timetable adjustable five sockets for various points Band 9 Transister Memorabilia RADIO ...The item was bought in south Vietnam by Wesley BERTUCH during hi service there. Refer Cat No 1664.2 for details.Large Transistor Radio Black with chrome coloured face handle on top four dials on the front Rear has World timetable adjustable five sockets for various points Band 9 Transister“HI FI Sound Deluxe National Panasonic”personal effects, communications, radio, bertuch -
Dandenong/Cranbourne RSL Sub BranchMemorabilia - Radio, Tokyo Shibaura Electrical Co, LTD, Unknown
... AM - FM Transistor radio, square in shape, pop up swivel antenna. ...Vietnam War historical significance Toshiba model No 15L -822F AM - FM Transistor radio, square in shape, pop up swivel antenna. ...Vietnam War historical significanceAM - FM Transistor radio, square in shape, pop up swivel antenna. Was used in Vietnam War 1969. Battery operated and 240 volts. Wooden handle and metal frame with original earplug.Toshiba model No 15L -822F -
Ambulance Victoria MuseumPYE F60 VHF BASE STATION, PYE F60 BASE, 1966
... Solid state Receiver using germanium transistors. Valve Base 50 Watts...Ambulance Victoria Museum 1/55 Barry Street Bayswater melbourne Solid state Receiver using germanium transistors. Valve Base 50 Watts Communications equipment that transisioned from valves to solid state Pye Base Station F60 Large Metal Blue cabinet holding a separate transmitter and reciever PYE F60 BASE PYE F60 VHF BASE STATION ...Solid state Receiver using germanium transistors. Valve Base 50 WattsCommunications equipment that transisioned from valves to solid stateLarge Metal Blue cabinet holding a separate transmitter and recieverPye Base Station F60 -
National Vietnam Veterans Museum (NVVM)Leisure Object - National Panasonic Transistor Radio in Brown leather case
... National Panasonic Transistor Radio in Brown leather case. Radio casing is Red plastic. ...National Panasonic Transistor Radio in Brown leather case. Radio casing is Red plastic. ...This item was donated by Lt David Malcom Lester who served with the Royal New Zealand Armoured Corps who served in Vietnam from August 1971 to November 1971.National Panasonic Transistor Radio in Brown leather case. Radio casing is Red plastic. Volume control ( Black) on /off switch and earphone plug is located on side. Frequency / station selection on front / face of unit.National Panasonic Radio.transistor radio, l/cpl charles "dick" mccoll, trooper gary bandy, lt david lester, royal new zealand armoured corps, lt david malcolm lester, 30872, 3 cav regt raac, tpr gary william bandy, 5717580, royal australian armoured corps, a squadron, 3rd cavalry regiment, australian national serviceman -
Deaf Children AustraliaHearing Aid, Widex P/L, Widex Hearing aid, 1950s
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. A Widex 25 hearing aid from the 1950's made in Denmark. Brown and gold metallic casing with a volume control dial and an on/off switch. The curly wire runs to a circular outer disc. Although not present the disc would normally connect to an ear mould which is individually fitted to the wearer. The item comes in a soft leather case."DENMARK" inscribed on gold front. "WIDEX 25" inscribed on back. "WIDEX" on inside cover of case. "W" on outside cover of case device, hearing aid, loss, hard of hearing, deaf children australia, victorian school for deaf children, vsdc, denmark, widex -
Deaf Children AustraliaHearing Aid, British Hearing Aids (Aust) P/L, Transitone & Universal Hearing Aid, Estimated: 1954
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. Hearing aid with Pink and silver metal pack with attached wire to ear piece. Uses (A) battery. Ear piece moulded for wearer with dials for adjustments. In original box. Transitone and Universal Hearing Aids were manufactured by British Hearing Aids (Aust) P/L. Model 61T. NoV848 "TRANSITONE & UNIVERSAL/HEARING AIDS/BRITISH HEARING AIDS (AUST) P/L" printed on fabric inside lid of box. Inside battery compartment, label "MODEL 61T" ('T' handwritten) "V848" inscribed on hinge. -
Deaf Children AustraliaCALAID V - Hearing Aid, National Acoustic Laboratories, Early 1980s
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. A new aid type, the Calaid V, was introduced featuring a forward facing microphone, and three potentiometers for adjustment of maximum gain, maximum power output, and low frequency roll off. The Calaid V was introduced in the early 1980s and remained the most frequently used aid in NAL's service for the next ten years (From: THE CALAID: AUSTRALIA'S OWN HEARING AID by Laurie Upfold and Ray Piesse Single Behind-the-ear hearing aid. Provided and manufactured by the NAL (National Acoustic Laboratories), part of the Commonwealth Department of Health. "CALAID/V" on bottom face -
Deaf Children AustraliaHearing Aid, Rexton, Rexton Model Super Master - Hearing Aid
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. Part of the development of hearing aids Gold and burgundy metal casing, with an ear piece attached by wire. This is a body-worn hearing aid, with user instruction booklet. Manufactured by Rexton a subsidiary of Siemens."647 IV" on bottom of case, along with controls, "H N L" "M T O" and a numbered dial deaf children australia, hearing aid, rexton, siemens -
Deaf Children AustraliaHearing Aid, British Hearing Aids (Aust) P/L, Universal Hearing Aid, "1970s? When small watch batteries came in.??
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. A Universal hearing aid supplied by Angus & Coote Hearing Aids. Universal Hearing Aids were manufactured by British Hearing Aids (Aust) P/L. Includes ear mould for right ear. In a teal leather box. ""Universal"/Mod 73-824" on back of pack. "Angus & Coote/HEARING AIDS" on inside of case. -
Deaf Children AustraliaHearing Aid, Hearing Aid from Myer Hearing Service
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. Tan plastic case hearing aid, with wire, ear piece and ear mold with metal clip. Made in England and sold by Myer Hearing Service. "MYER/HEARING SERVICE" engraved in gold on case. "MADE IN ENGLAND" on bottom of case. deaf children australia, hearing aid, myer hearing service -
Deaf Children AustraliaZephyr Hearing Aid, Estimated date: early 1950s
... The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids.Cream plastic hearing aid with metal back. Takes 3 batteries and there is a piece of paper in the battery case advising 'CAUTION'. Two round knobs on top, 'ON/OFF' and the other I assume is Volume. There is a plastic tag for attaching to a button (probably), headphone sockets. The front is metal lacework with a scrolled 'Z'"Z" on front. "ZEPHYR/HEARING AID/2546" on back. "U C"/"M"/"7777" on inside battery case.deaf children australia, hearing aid, zephyr hearing aid
