680

Bulova Watch Corp.; Woodside (NY)

Data

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Country
United States of America (USA)

Manufacturer / Brand
Bulova Watch Corp.; Woodside (NY)

Year
1959 ?

Category
Broadcast Receiver - or past WW2 Tuner

Radiomuseum.org ID
70298

Picture
Schematics

680 ; Bulova Watch Corp.; (ID = 52463) Radio — Bulova Watch Corp.; 680 (3)

680 ; Bulova Watch Corp.; (ID = 2197836) Radio — Bulova Watch Corp.; 680 (1)
Front view swiveled right

680 ; Bulova Watch Corp.; (ID = 2197837) Radio — Bulova Watch Corp.; 680 (1)
Front view swiveled left

680 ; Bulova Watch Corp.; (ID = 2197838) Radio — Bulova Watch Corp.; 680 (1)
Back

680 ; Bulova Watch Corp.; (ID = 2197839) Radio — Bulova Watch Corp.; 680 (1)
Interior

680 ; Bulova Watch Corp.; (ID = 2197840) Radio — Bulova Watch Corp.; 680 (1)
Label

680 ; Bulova Watch Corp.; (ID = 429864) Radio — Bulova Watch Corp.; 680 (2)
Q = ebay objnr : 140211605641

680 ; Bulova Watch Corp.; (ID = 1456824) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 429867) Radio — Bulova Watch Corp.; 680 (2)
Q = ebay objnr : 140211605641

680 ; Bulova Watch Corp.; (ID = 429865) Radio — Bulova Watch Corp.; 680 (2)
Q = ebay objnr : 140211605641

680 ; Bulova Watch Corp.; (ID = 429869) Radio — Bulova Watch Corp.; 680 (2)
Q = ebay objnr : 140211605641

680 ; Bulova Watch Corp.; (ID = 429871) Radio — Bulova Watch Corp.; 680 (2)
Q = ebay objnr : 140211605641

680 ; Bulova Watch Corp.; (ID = 1456825) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 1456826) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 1456827) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 1456828) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 1456829) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 1456830) Radio — Bulova Watch Corp.; 680 (2)
By Courtesy Of EBAY User: brownscountrystore

680 ; Bulova Watch Corp.; (ID = 2391895) Radio — Bulova Watch Corp.; 680 (1)
Serial nr.: 14865 component side

680 ; Bulova Watch Corp.; (ID = 2391928) Radio — Bulova Watch Corp.; 680 (1)
Serial nr.: 14865: transistor 21-20

680 ; Bulova Watch Corp.; (ID = 2629789) Radio — Bulova Watch Corp.; 680 (1)

680 ; Bulova Watch Corp.; (ID = 2629790) Radio — Bulova Watch Corp.; 680 (1)

680 ; Bulova Watch Corp.; (ID = 2629791) Radio — Bulova Watch Corp.; 680 (1)

680 ; Bulova Watch Corp.; (ID = 2629794) Radio — Bulova Watch Corp.; 680 (1)

Click on the schematic thumbnail to request the schematic as a free document.

Technical Specifications

Number of Transistors
4

Semiconductors
2N412 or. 2N486 2N410 or. 2N483 21-20 2N408 or. 2N631

Main principle
ZF/IF 455 kHz; 3 AF stage(s); Reflex

Tuned circuits
4 AM circuit(s)

Wave bands
Broadcast only (MW).

Power type and voltage
Dry Batteries / 9 Volt

Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

Material
Plastics (no bakelite or catalin)

from Radiomuseum.org
Model: 680 - Bulova Watch Corp.; Woodside

Shape
Very small Portable or Pocket-Set (Handheld) < 8 inch.

Dimensions (WHD)
103 x 164 x 50 mm / 4.1 x 6.5 x 2 inch

Notes
Unusual circuit design: Vol-pot in front of mixer/oscillator transistor. Active IFdetector (with AF amplification), reflex IF stage as emitter-follower for AF, single ended output stage.

Net weight (2.2 lb = 1 kg)
0.605 kg / 1 lb 5.3 oz (1.333 lb)

Circuit diagram reference
Beitman Radio Diagrams Vol. 20, 1960

Literature/Schematics (1)
Transistor Radios 1954-68 (Model info and picture on page 20)

Author
Model page created by Trev Levick. See "Data change" for further contributors.

Other Models
Here you find 141 models, 128 with images and 49 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Bulova Watch Corp.; Woodside (NY)

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The model 680 is part of the collections of the following members.

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