4P19W Ch= 682-2
Sylvania Hygrade,: 4P19W Ch= 682-2 [Radio] ID = 147617 648x405
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| Year: 1961 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Semiconductors (the count is only for transistors) | 4: 2N212 SYL2132 SYL2131 SYL2135 |
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| Main principle | Superheterodyne (common); ZF/IF 455 kHz; Reflex |
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| Tuned circuits | 4 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Storage and/or dry batteries / 9 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm |
| Power out | |
| from Radiomuseum.org | Model: 4P19W Ch= 682-2 - Sylvania Hygrade, GTE, Nilco; |
| Material | Plastics (no bakelite or catalin) |
| Shape | Very small Portable or Pocket-Set (Handheld) < 8 inch. |
| Dimensions (WHD) | 160 x 90 x 45 mm / 6.3 x 3.5 x 1.8 inch |
| Notes | A 4 transistor reflex receiver using Sylvania transistors. Unusually, the volume control adjusts the sensitivity of the input from the ferrite rod antenna and is not in the usual AF part of the circuit. The circuit is about the same in all the five following models: 4P19W, 4P19WC, 4P19WD, TH10W and 7058 |
| Net weight (2.2 lb = 1 kg) | 0.4 kg / 0 lb 14.1 oz (0.881 lb) |
| Circuit diagram reference | Beitman Radio Diagrams Vol. 22, 1962 |
| Mentioned in | M.B.Schiffer: The Portable Radio in American Life |
| Literature/Schematics (1) | Photofact Folder, Howard W. SAMS (Date 4-62, Set 573, Folder 16) |
| Literature/Schematics (2) | Antique Radio Magazine - Italy, Club Antique Radio Magazine (n. 129 gennaio-febbraio 2016, pag. 36-39) |
Model page created by William J Blanchflower. See "Data change" for further contributors.
All listed radios etc. from Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Here you find 896 models, 414 with images and 756 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
