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Title: HAMMARLUND IF NOISE "IMMUNIZER" (Noise Blanker) SOLD Post by: W1KSZ on October 24, 2017, 11:07:23 AM This is a true 455Kc IF Noise Blanker (they called it an Immunizer). Looks in AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
excellent condition, may never have been installed (not sure of that). Comes with the appropriate dual control pot and both knobs. The tubes all tested OK on my TV-7 Tube tester. Comes with a copy of the installation instructions for the HQ-170 and HQ-180 series radios (11 pages). But, being for a 455 Kc IF, it could be installed in any receiver with that IF. If interested, I can send you a copy of the installation instructions. Asking $75, shipped CONUS. 73, Dick, W1KSZ |