. QST . sues of Q^T, has provedto be a sure-fire method of building an oscillatorthat sits still almost from the moment it isturned on. There is nothing more disconcertingthan working in a net, or sweating out DX, witha VFO that wanders for a number of hours beforesettling dov\-n. With the VFO tuned circuit apartfrom the main portion of the transmitter, anckept a reasonable distance from other sources otheat the oscillator frequency becomes st^ableverv soon after the rig is turned on. As with alloscillators, the quality of the components inthe fiequencv-determining circuits should be thehighes
. QST . sues of Q^T, has provedto be a sure-fire method of building an oscillatorthat sits still almost from the moment it isturned on. There is nothing more disconcertingthan working in a net, or sweating out DX, witha VFO that wanders for a number of hours beforesettling dov\-n. With the VFO tuned circuit apartfrom the main portion of the transmitter, anckept a reasonable distance from other sources otheat the oscillator frequency becomes st^ableverv soon after the rig is turned on. As with alloscillators, the quality of the components inthe fiequencv-determining circuits should be thehighest possible, and the construction rigid. The 4-b5A iraiismiller in a rackrabinet with remote VFO and con-trol unit to the right. Along the bot-tom of the main panel are the band -switch, the grid meter and the ex-citation control. Above are the con-trols for the multiband tuner, theplate tank capacitor, the rotary in-ductor, and the output-capacitorswitch. The plate milliammeter i-at the top. October 1955. BUFFER
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
