iopbenefits.blogg.se - Collins 51s-1 versus 75s-1

COLLINS 51S 1 VERSUS 75S 1 LICENSE
COLLINS 51S 1 VERSUS 75S 1 SERIES

SB2 (4-1-60) Improve carrier suppression SB3 (1-11-69) Reduce excessive ALC control SB2 (1-11-69) Prevent Intermittent dropout of plate overload relay SB1 (6-21-61) To increase operating life of PA tube SB4 (11-15-77) Operation from 230V AC Power Source SB3 (4-2-62) To lower operating temperature of PA tubes SB2 (2-20-62) Backward Deflection of ALC meter SB1 (21-8-61) Wiring change required before conversion from 115VAC to 230VAC SB10 (15-04-74) Eliminate VHF parasitic oscillations in tone oscillator, V2B SB8 (1-8-70) Eliminate AGC overshoot on noise pulses and provide dual time-constant action, Change source of delay bias to the AGC rectifier, Add delayed-decay (hang) AGC to the rf amplifier SB6 (1-11-62) To Eliminate Delay in Operation when Switching from Transmit to Receive Function SB5 (11-23-60) To Improve Transmit-Receive Exciter Tuning Coincidence SB4 (9-2-60) Improvement of ALC Action and Elimination of ALC Overshoot

SB3 (01-10-71) Correlation Between Frequencies on Different Bands SB2 (10-01-60) Add Vox Relay Time Constant Control

SB1 (9-12-58) Improvement in Calibrator Operation, Spurious Outputs of KWM-1, Transient i Speaker when switching from Receiver to Transmit, Hum in Speaker when AF Gain Control is Advanced in CW Operation, Tweats in Audio Output cased by DC Power Supply Page 4 The Collins Radio logos contained herein are Trademarks of Rockwell Collns Inc. copyrighted information and are used with permission.

Please note that these documents contain Rockwell Collins, Inc. The Collins Radio Association desires to support the preservation and use of Collins amateur radio equipment by providing these Collins service bulletins, which will contribute to the continued use and enjoyment of Collins amateur radio equipmet, at no cost or obligation to CRA members and the general public for their own personal use, only.

COLLINS 51S 1 VERSUS 75S 1 LICENSE

Rockwell-Collins Incorporated, 400 Collins Road NE, Cedar Rapids, Iowa, 52498, grants to the Collins Radio Association the non-exclusive, worldwide, royalty free license to reproduce and disseminate, in electronic and written format, any Collins Service Bulletins for Collins amateur radio products.

Power relay & ceramic sockets for 516F-2.

Refurbishing the Heathkit SB-610 and The 610C-2.

Sound investment that offers excellent resale value.

Future product modification data furnished each owner free of charge through production life of equipment.

Dedicated factory and distributor product support after the sale.

Exceptional reliability through proven, conservatively-rated design.

All equipment is hand wired using teflon coated wire.

Extensive use of highest quality MIL SPEC components.

All signal specifications are quoted in “hard” microvolts, i.e., signal level across 50 ohms, which is 6 dB less than “soft” microvolts.

Each unit is subjected to vibration an shock during transmit and receive.

Every transmitter receives complete distortion measurements to ensure that intermodulation distortion is at least 30 dB down.

All units are “burned in” 12 hours, then tested and calibrated.

Collins offer the only 1 year warranty in the amateur field.

You’re ready for the S/Line or the KWM-2A. Now is the time to talk it over with your Collins distributor.

COLLINS 51S 1 VERSUS 75S 1 SERIES

You’ve spent frustrating years with a series of rigs.Įven if it costs more, you’re thinking about a station that offers truly dependable performance, more enjoyment, It was natural to compromise on equipment at first. The visually pleasing aesthetics combined with a simplified control layout and a sloping cabinet design made the S-Line very comfortable to use and helped to make it an instant success. Inspired by his Leica camera, Art Collins wanted the S-Line front panel backgrounds to have a leather-like finish.

The S-Line replaced the A-Line Golddust Twins (the 75A-4 / KWS-1 ) in 1958 with the introduction of the 75S-1 and 32S-1. The Collins S-Line was perhaps the most successful amateur product line in history, spanning over two decades.