Allied Radio
Knight-Kit V44
Variable Frequency Oscillator
1955-195x
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Ameco
VFO-621
Desktop VHF VFO
196x-19xx
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Collins
399C-1
Desktop Shortwave VFO
1959-196x
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Delta
330
Desktop Shortwave VFO
1959-19xx
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Drake
RV-4
Remote VFO
19xx-19xx
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Drake
RV75
Desktop Shortwave VFO
-
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Eico
722
Desktop Shortwave VFO
19xx-19xx
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Heathkit
HG-10
HF VFO
19xx-19xx
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Heathkit
SB-640
Remote Linear Master Oscillator / VFO
1967-1970
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Heathkit
SB-644A
Remote Linear Master Oscillator / VFO
1978-198x
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Heathkit
VF-1
HF Variable Frequency Oscillator
19xx-19xx
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ICOM
DV-21
Desktop VHF VFO
-
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Lafayette
HA-89
Desktop Shortwave VFO
197x-197x
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Lafayette
HA-90
Desktop Shortwave VFO
197x-197x
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Yaesu
FV-101B
External VFO
19xx-19xx
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