VINTAGE TECHNICS

www.vintage-technics.ru

Home

 

Audio recorders

Aiwa TP-30

Aiwa TP-60R

Answer ATR-102

Apolec RA-11

Apollo

Assmann TS 10

Concord F-20

Concord F-85

Crown CTD-2200

Dictaphone Dictet

Dictaphone 4250

Dictaphone model 848

Dictaphone "OMEGA"

Dokorder PT-4H

EDI model M-75B

Edison Envoy Model 1

Electron 52D

Electronica M-401S

Electronica M-402S

Electronica M327

Emerson Wondergram

Encorder

Fanon-Masco FTR-2

Fi-Cord 1A

Fi-Cord 101S

Fi-Cord 303

Fi-Cord 300A

Gray Audograph D6

Grundig EN3 Luxus

Grundig DeJur Versatile III

Grundig Stenorette 2000

Globe-Corder GT-101

IBM 224 Dictating Unit

Juliette LT-44

Lanier VIP/C

Lloyd's 8 track player

Mayfair-1602

Memocord K60

Memocord mini K177

Mezon

Miny

Minifon Mi51

Minifon Attache

Minifon Attache-Speaker

Minifon Hi-Fi

Minifon Liliput

Minifon Protona Special

Minifon P55 "Plexi"

Minifon P55 L (1957)

Minifon P55 L (1960)

Minifon P55-Speaker

Mohawk Midgetape 44

Mohawk Midgetape 300

Mohawk Midgetape 400

Monacor

Mriya

National RQ-8100

Norelco LFH 0085/54

Norelco LFH 0095

Olympus Pearlcorder L200

Panasonic RQ-115

Panasonic RQ-212DKS

Panasonic RQ-SX56

Panasonic RQ-SX97F

Philips EL 3302

Phono TRIX 88

Playtape 1200

Pocket Corder MC-2

Reporter 5

Ross Mark-55

Sanyo Micro-Pack 35

Sanyo M2580K

Sony BM-17 Dictator

Sony TC-5

Sound Machine "Hokie Pokie"

SoundScriber

SoundScriber 200

SoundScriber 200 B

Sputnik 401

Spy Tape Recorder

Steelman Transitape

Stenotape TR-711

Stuzzi Memocord 304 B

Tefifon Holiday BK-59

Telefunken 600

Telmar T-100

Tinico

Vesna-309

-1 (Yacht)/i-1

Accessories

 

Televisions, video

Akai VT-150

Akai VC-150

Electronica-501-video

Electronica-video VMP-1

Electronica-508M-video

Electronica-841

Electronica L1-08

Panasonic TR-1030P

Sony AV-3400

Sony AVC-3400

Sony SL-F1E & TT-F1E

Sony Watchman FD-30A

Sony Watchman FD-40A

 

Tube radios

Emerson 508

Motorola 56L2

RCA Victor 54B2

RCA Victor BP-10

Sterling LS-4

Tourist PMP-56

United Deluxe RN-5

 

NEW

EDI model M-75B

Mriya

-1 (Yacht)/i-1

Tube stereo cassette player

Tube Microcassette recorder

Tube "Electron 52D"

 

Other rarities

Detective Dictograph

FED-5v

Krasnogorsk-2

Motorola M75

Pentacon six TL

Tube Tester I-177

Viliya-Auto

V/A - Meters

First transistors USSR

 

My works

Tube stereo cassette player

Tube Microcassette recorder

Tube "Electron 52D"

 

 

 

 

 

RussianAudio recorders Televisions, video Tube radios NEW Other rarities My works

 

First transistors USSR

   

   

 

Used Google translator

     The first serial transistors in the Soviet Union, not including experienced 1 - 8 (1953), were point contact p-n-p germanium transistors 1 and 2 (1954 - 1960). Length of the body without pins 12 mm, diameter 6.5 mm. Lead Length 4 mm. Weight 2 grams. Given that the findings are very short, the weight of the transistors is pretty big. In comparison, for example transistors 40 with long pin weigh only 1.5 grams. Great weight 1 and 2 due to their design features. One transistor 2 I made out to study the structure. After removing the outer body revealed that it is a brass cylinder having a diameter of 6 mm, and inside which is a germanium crystal. In the middle of the cylinder, there are two technological hole diameter of 2.5 mm. The thickness of the cylinder wall in the opening - 0.4 mm. The outer casing is made of an alloy similar to nickel.
     More information about vintage Soviet transistors can be found here.

     Note:
     1, 8 - KS1, KS8
     1, 2 - S1, S2

     40
- MP40

Photos can be enlarged

 

Through the hole in the brass body is seen germanium crystal with contact wires

 

The photo shows that the outer casing provides only tightness and strength of the structure creates a second - brass body, inside which is a germanium crystal

   

Construction transistors C1 and C2

Transistors packed in paper envelopes on 1 piece

   

American counterpart transistors C1 and C2 is a point contact p-n-p transistor 2N25 of "Western Electric Company Inc.; New York". They began to produce in 1953, a year before the Soviet counterparts. Structurally, they are similar, but 2N25 instead of a metal casing that covers the hole in the hull, used a plastic ring. Case dimensions without pins 12 x 5.5 mm. Weight 1 g. Available I have instances marking the date of manufacture 8-53 and 10-53. Information on many of the old transistors can be found at wylie.org.uk

 

Should the protective ring can be seen that the filler is probably the entire interior of the housing

 

 

1, 2 (P1, P2) - the first domestic p-n-p germanium junction transistors (1955 - 1960).
Actual dimensions 19 x 9 mm (passport 20 x 10 mm). Lead Length 30 mm. Weight
2.5 g

   

Transistors packed in paper envelopes on 1 piece

   

 

3 (P3) - the first Soviet germanium planar transistor p-n-p high power (1955 - 1960). Dimensions: 24 x 27 mm. Core diameter 25 mm. Weight 8 grams

   

 

4 (P4BE) - The first Soviet powerful planar germanium transistor p-n-p type. Power of 10 watts. Probably produced since 1957. Dimensions 30 x 9 mm without pins. Weight 14 grams.

   

 

 411A  (P411A) - germanium diffusion microwave transistor p-n-p type (Development, 1959). My attention it has attracted an unusual hull design

   

 

309 (P309) - silicon n-p-n transistors early 60's. Produced until recently, but in other cases. Initially the body has dimensions - height 11 mm - diameter 10mm with a rim diameter of 13 mm. Weight 2 g The photo shows the transistors 309 (P309) , made in 1964 and 1985

   

 

16 (P16) p-n-p germanium junction transistors. Produced since 1959. One of my existing instances I opened for the study design

   

 

Below you can see the construction of some Soviet and foreign transistors.

Soviet germanium p-n-p transistor 310 (GT310B). Diameter 3 mm.

   

 

Soviet germanium p-n-p transistor 402 (GT402A)

   

 

The germanium p-n-p transistor 2SB257 (60 years)

   

 

The germanium p-n-p transistor OC38 (50 years)

   

 

The germanium p-n-p transistor OC71A. Presumably produced since 1954. An interesting design as a glass bulb filled with a protective gel.

   

In the magazine "Radio & TV News" in January 1959, I found these interesting pictures that explain the device of the first transistors of different types



Areas of the first transistor technology from the magazine "Radio & TV News" for August 1956

Also of interest are the old copper oxide semiconductor diodes
7-1a type produced in the USSR. They were also called copper oxide rectifiers or valves. The diodes in the photo below made in 1961

 

In the photo below one of the first mass-produced Soviet germanium diodes - point -7 (DG-C7) and planar -21, -24, -27 (DG-C21, DG-C24, DG-C27). Producing them started in the mid 50s.

 

Construction diode type -21 - -27 (DG-C21 - DG-C27)

1 - Contacts - tinned copper
2 - Glass insulators
3 - Copper body
4 - Contact - tinned copper
5 - Indium anode
6 - Crystal germanium
7 - Crystal holder - nickel or kovar
8 - Solder

   

 

Home