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Author Topic: For Sale: MULTI-ELMAC AF67 PLATE MODULATED XMTR  (Read 3961 times)
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AF4K
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« on: February 16, 2013, 02:00:50 PM »

REDUCED:

MULTI-ELMAC AF-67 Trans-Citer is a ten-tube, VFO or crystal controlled, 7 band AM-CW transmitter. All circuits are simultaneously switched to the desired band by a single bandswitch lever. USES TEN TUBES: 6AK6 Oscillator, 6BJ6 Reactance Modulator, 6AG5 Buffer-multiplier, 6AQ5 RF Driver, 6146 Final RF Amplifier, 6AU6 Speech amplifier, 12AU7 AF Driver, 5881 (TWO) PP Modulators, OB2 Voltage regulator

Designed as a complete transmitter for mobile or fixed installations, or an exciter to drive a higher power transmitter. When used as an exciter the 500 ohm tap on modulation transformer can be used to drive the higher power modulators. CIRCUIT DESCRIPTION. The AF-67 Trans-citer employs a variable frequency oscillator with output on wither 1.75 to 2.0 Mc. or 3.5 to 4.0 Mc. In addition to the V.F.O. feature, two crystal positions are included for operation on two spot frequencies. Any crystal that will work straight through, double of quadruple to the desired frequency may be used. The oscillator circuit employs a voltage regulator tube to maintain the plate voltage at a constant level.

One of the great Classic Am amateur radio transmitters. I don't have a power supply or cable with this so it is untested. Will post an internal photo soon. It is all there though and should work fine with a little TLC.

The modulation transformer is provided with a 500 ohm output tap brought to the power plug for driving the grids of high powered modulators. The 5881's will deliver approximately 40 watts of audio with a plate supply of 500 volts.

Was asking $135.00 - now reduced to  $99.00 plus shipping. USA only.

Pictures and details at:
http://af4k.com/radios.htm#AF67

E-mail: af4k@hotmail.com


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