Collins, DX Eng RF Speech Proc for 32S series-RARE!!
Add 6db to your signal with this simple plug in LQQK!!
Up for sale is my Extremely Rare DX Engineering RF Speech Processor model LC-1-32S for the Collins 32S-1 and 32S-3 series transmitters. The function of the DX Engineering Speech Processor is to increase the average power of a single sideband voice signal while keeping the peak amplitudes constant. When these are purchased by the operators of these Collins radio, they most all the time hold onto them. They are that good! Hence, we don't see too many of these for sale.
Maintaining voice quality while increasing the average power requires that most of the distortion products fall outside the desired voice bandwidth. An instantaneously acting logarithmic amplitude limiter (RF Clipper) provides more gain for the lower amplitude components of the voice while limiting the peaks.
The limiter stage is followed by a mechanical filter which effectively eliminates all first order and most second and higher harmonic distortion. Typically, 20 db of compression is used, resulting in 6 db or more increase in average power while maintaining normal intelligibility.
The technical and operating Manual comes with the speech processor. I will be happy to ship World-Wide as long as sufficient postage is paid for in advance. Shipping will be via USPS Priority Mail. I will pay for insurance.
I prefer payment via Pay Pal although I will accept a cashier's check for a US purchaser. Do to the nature of vintage electronic equipment this unit is being sold "as is" since I have no control how it will be handled or operated. The unit is in 100% working order.
If you have a Collins 32S-1 or 32S-3 series transmitter or know someone who has one, this addition to the transmitter will effectively produce a voice signal gain that of a linear amplifier.
Thanks for looking at my Ebay sale item. 73's