Collins 51j-4 General Coverage Communications Receiver .54-30 Mhz W/orig Manual For SaleTYPE: Vintage Rack Mount General Coverage Tube Receiver
MAKE/MODEL: Collins 51J-4
SERIAL NUMBER: 23
RCV FREQS: 540 kHz-30.5 mHz in thirty 1 mHz bands
RCV MODES: AM, CW & SSB (using BFO)
FEATURES: include but are not limited to the following: HEAVY DUTY HIGH END COMPONENTS, 1 mHz PTO frequency tuning, designed for 19 inch rack mounting (NO cabinet included but all covers are present), decibel type S-Meter, requires external speaker (speaker NOT INCLUDED), Crystal Selectivity with Phasing, Switchable AVC, RF Gain, Audio Gain, Selectivity Switch, Noise Blanker, THREE Collins MECHANICAL FILTERS (800 Hz, 3.1 kHz & 6.0 kHz), Calibrator, antenna peaking, 3-prong AC cord with ground, most 0RIGINAL alignment/service tools.
INCLUDES: (1) 51J-4 Receiver with AC Cord + TOP & BOTTOM covers (2) most of the original alignment tools & Bristol Spline Wrenches mounted to the top cover.(3) Factory Manual
OPTIONS: NONE, but includes THREE COLLINS MECHANICAL filters
COSMETICS: B GOOD overall (1) the front panel and original knobs look GOOD. All writing is legible and easy to read. There are chips on the bottom edge (2) the back panel looks GOOD with all writing legible, but minor blemishes can be seen (3) the TOP & BOTTOM covers look GOOD with minor blemishes present (4) the chassis is clean and appears to be coated with Anti Fungal / Corrosion Coating with all writing legible but minor blemishes (5) the cord/plug look GOOD (6) the frequencies on the drum dial are legible, but minor blemishes can be seen on some band segments (7) the COLLINS ID tag looks GOOD. (8) there is old/dry leakage around the transformer, which does NOT effect performance. The transformer does NOT run hot during use.*** SEE LARGE PHOTOS!***
BULBS WORK: YES
MALFUNCTIONS: (1) The receiver works on ALL band segments with NO hum. ON THE AIR SIGNALS OR CALIBRATION MARKS WERE HEARD on each band segment.(2) All controls function, but the CRYSTAL PHASING & BFO appear to need alignment. (3) the 7.5-8.5 mHz band is full of birdies & howling***THIS IS NOT A RESTORED RECEIVER: tubes and components have not been tested. The date of last alignment and service are unknown.
COMMENTS: This 51J-4 was made during the late 50s and is still considered a GOOD PERFORMER! It includes the SUPERB COLLINS MECHANICAL FILTERS for 800 Hz, 3.1 & 6.0 kHz selectivity + CRYSTAL PHASING. This 51J-4 would make a TERRIFIC ADDITION for ANY COLLECTOR or vintage gear owner/user!I have made every effort to describe this item honestly. I am selling this item absolutely as is without returns, refunds or adjustments. Please take a minute to read my response if you have doubts about the accuracy of my descriptions.My shipping fees include full insurance for the final sale price. Shipping fees for this sale are only for the lower 48 states of the US or CONUS. They do not apply to AK or HI. All of my largest items packing and shipping is done by a professional service accustomed to dealing with the often fragile and/or heavy items I sell. Only first quality boxes, packing materials and care are used. Damage is extremely rare. Any damage due to faulty or inadequate packaging is covered by my packer's insurance. offer knowing your purchase will arrive in the condition it was when photographed. This service is not without cost but is far superior to receiving that prized item damaged! Please examine my packing/shipping/insurance fees before you offer. After the sale, when I receive your payment, your item will positively be at my packer/shipper within 48 hours and most likely within 24 business hrs. (excluding holidays, Sundays etc.) There, they will carefully package it, ship it, and send you an email with tracking info. This email will appear as Wrap & Ship on the email header. Of course, this assumes your email address is current/correct on your pay pal and accounts.Thanks for your time and best of luck with your offers! Neil WK9Q
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