But it is beautifully built and well protected environmentally.
They cost less than.00 each.
In this photo, the mixer and antenna Tuning Links for Channel 1 are moved towards the front panel (top of the photo) to connect in the 56 pf capacitors since my Channel 1 crystal was on 3550 kc at the time.The power supply is reverse-polarity protected by a vin diesel wheelman pc game torrent series diode.This switch is designed to protect the power supply transistors and the 2E24 screen grid from excessive heating (melting) while the transmitter is being tuned (off resonance).The set does not have a purpose-made carrying harness or bag.The radio on the left still had the stock crystals installed so it was relegated to keeping Radio Havana Cuba under surveillance on 6000.That may explain the lower frequency oscillation of the HC-49 crystals in this radio.The simple output network was designed to drive this capacitive load to avoid large tuning excursions possible on either side of resonance requiring an additional adjustable reactance.Note that.0 was not included, presumably because of the presence of many frequency/time-standard stations operating on that frequency worldwide.
However the difference in weight is substantial while being carried along with all their other gear.
This means they will all present a capacitive load to the radio with a fairly low resistive component.One efficient antenna for both bands.With a 455 Kc IF selectivity"d as 6 Kc (6 db down) and 11 Kc (60 db down it sounds very good on AM and very easy to work CW even if something is off a little.It required a unique dry cell battery that provided 3 different voltages; a type used in no other radio set.2 tubes: 3B4 and 2E24 (transmitter driver and PA) 17 transistors total: Rx: 11 transistors, Tx: 6 transistors.It was also noted that both sets provided approximately the same level of performance.(The selectivity is not so great on 40 meters during a CW contest!So in 1959 the development was started on a crash basis at the Armys Electronic Defense Laboratory which was managed by Sylvania Corporation, an early pioneer in transistor development.And For channels receiving frequencies from.8 to 8 megacycles the RF and mixer links should be positioned closest to the front of the unit.