Collins: 51S-1
Main Selector Switch for 55G-1 Tuner
(COL) 259-2522-010
Collins main selector switch for 55G-1 tuner. Collins rotary switch. 2 wafer. Each wafer is 4P3T, total 8P3T. AC switch @ end CCW rotation. Same AC switch used on S-line equipment. 1-1/2"D, 1-7/8" behind panel depth. 1/4" x 1-7/8" shaft. 3/8" bushing mount.
$95 each
Male Socket
9 Pin
(CNE) 9P-PLUG
Amphenol male socket. 9 pin. Fits Collins 51S-1.
$37 each
51S-1 Manual
(PUB) COL-51S-1
Most complete operation and maintenance manual for 51S-1 / 1A / 1F / 1AF / 1B; 11th Edition, 15 September, 1975. Includes complete fold out diagrams, 3/4" thick!
*** SOLD OUT ***
(PUB) COL-51S-1C
Photo-copy of above manual.
$39 each
51S-1 CW Filter
(COL) 293-0928-00
800 Hz crystal filter for 51S-1, FL4.
$175 each
51S-1 Tube Set
(TUR) 51S1-KIT
Our complete tube set has 17 tubes.
$189 per set
51S-1 SSB Filters
(COL) 526-9414-000
2.4 KHz.
$199 each
(COL) 526-9415-000
2.4 KHz.
$290 each
(COL) 526-9422-000
2.75 KHz.
$149 each - $119 (3+)
(COL) 526-9423-000
2.75 KHz.
$149 each
IF / RF Transformers
Original new replacement cans.
(COL) 278-0639-000 pictured.
IF / RF Transformers
Part Number Description Price Each  
(COL) 278-0639-000 T16 65.00 Add
(COL) 278-0640-000 T12, T13 65.00 Add
(COL) 278-1763-000 T14, T15 65.00 Add
(COL) 278-1765-000 T3 55.00 Add
(COL) 278-1766-000 T7 65.00 Add

RF Gain Potentiometer
25k Ohm
(COL) 376-7676-020
51S1 RF gain potentiometer. 25k ohm.
$22 each
9 Pin Female Socket
(CNE) 86CP9T
Rare blue 9 pin female socket. Mates with KWM-2/2A antenna switching plug on rear chassis and 51S-1 power cord.
$45 each
T4 Audio Transformer
(COL) 667-0522-000
T4 Audio Transformer.
*** SOLD OUT ***
51S-1 Crystals
SAVE $$$. Buy the whole set for $130.00
*** SOLD OUT ***
Part Number Rating Price Each
(COL) 289-1572-000 10000.0 KHz 15.00 Add
(COL) 289-1575-000 13000.0 KHz 15.00 Add