Model: FT-101E (FT-277E)
Antique radios, Old Time Radios
FT-101E (FT-277E)
Country:
Japan
Manufacturer/Brand:
Yaesu-Musen Co. Ltd.; Tokyo
Year: 1975 – 1978
Type:
Amateur Transceiver
Mod.-ID = 69098
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Schematics etc.: 0 (for
members)
Principle
Superhet with RF-stageSuperhet with a preamplification stage.
Please use «To add informations to model» if you know more! Thanks.
Récepteur TSF superhétérodyne avec préamplification de HF.
Superhet mit HF-Vorstufe.
Wave bands
Wave Bands in notes or not known yet.Bitte geben Sie die Wellenbänder an, falls Sie mehr wissen.
Power type and voltage
Line AND Batteries (any type) / 12/100-234 VoltLine supply as well as battery supply possible.
Alimentation secteur et alimentation de batterie possible.
Netz- und Batteriespeisung möglich.
Das Gerät - meist ein Reiseapparat - lässt sich aus dem Netz oder aus Batterien speisen, wobei es sich um Akkus oder Batterien handeln kann. Grosse Reiseempfänger ab Mitte 50er Jahre können einen im Gerät aufladbaren NiCd-Akku enthalten, der nun auslaufen kann
Loudspeaker/pwr.out
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)Permanent magnet type moving coil speaker (principle by Rice-Kellog, without field excitation coil).
Haut-parleur avec système dynamique à aimant permanent (sans bobine d`excitation).
Permanentdynamischer Lautsprecher, also (modernes) Tauchspulenprinzip mit Selbsterregung bzw. Permanentmagnet statt Magnetspule. Siehe «Radios von gestern» Seiten 329ff.
/ 2 W
www.radiomuseum.org
Model: FT-101E (FT-277E)
Material
Metal caseMetal case.
Caisse en métal.
Gerät, dessen Gehäuse aus Metall gefertigt ist. Es kann sich um verschiedenartige Metalle und Oberflächenbearbeitungen handeln. Ist es hingegen nur ein Chassis, so erhält das Gerät eine andere Bezeichnung.
Shape
Tablemodel, with any shape - general.
Dimensions (WHD)
340 x 153 x 285 mm / 13.4 x 6 x 11.2 inch
Valves / Tubes
3:
12BY7ADurch Heizfaden-Mittenanschluss auch Betrieb mit 6.3 V und 0.6 A möglich.
(more
for members)
Transistors
There are
transistors, but the number is unknown:
(more
for members)
Notes
SSB/CW/AM-Transceiver for 160 to 10 m HAM-bands plus CB and reception of time-stations in the 10 MHz-range. Double-conversion. Aprox. 90 watts output. In Europe also sold as Sommerkamp FT-277E. Speech-processor built in.
Net weight
19 kg / 670.2 oz
Price in first year of sale
749
USD
Collectors prices
6 Collector prices (for members)
External source of data
Eilert Menke
This model was suggested by Anonymous 1 Collector.
Further information on
FT-101E (FT-277E) (Yaesu-Musen Co. Ltd.; Tokyo)
http://foxtango.org/foxtango005.htm
From www.mods.dk, author not known:
There will come a time when the finals in your FT101E will need replacing. These transceivers were originally equipped with 6JS6C tubes manufactured by NEC. This tube's properties are slightly different from the 6JS6C tubes available today from American tube manufacturers. By the way, don't bother looking for tubes made by NEC. They got out of the business several years ago. In order to use the "American" variety 6JS6's, a simple modification to the neutralization circuit must be made to the final section of the transceiver. The modification consists of replacing the fixed value 100 pf 1000 VDC mica capacitor with a 10 pf 1000 VDC mica capacitor. This capacitor, C125, is in series with the 10 pf variable neutralizing capacitor off of the plate circuit. If this modification has not already been completed on your rig, be sure to use a mica or silver mica of at least 1000 VDC. Do not substitute a different type, because the heat in the final compartment will change the value, and your tubes will fail prematurely. Also, be very careful to keep all leads short and in exactly the same orientation as the original capacitor. Before reneutralizing, open the variable neutralizing capacitor all the way to minimum engagement and follow the neutralizing instructions in the manual. While dipping the plate, remember to adjust the neutralizing capacitor for equal value meter reading peaks (IC position) on both sides of the dip when tuning the "Plate" control.
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