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Swan 600-T & 600-R Custom HF Transmitter / Receiver with ICAF-500 Audio Notch Filter & NB-500 Noise Blanker NICE!

$699.99

Swan 600-T & 600-R Custom HF Transmitter / Receiver with ICAF-500 Audio Notch Filter & NB-500 Noise Blanker NICE!

$699.99
Shipping:
$100.00 (Fixed shipping cost)
For International Shipping, Please contact me for a Quote before check out
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Product Description

This Swan 600-T & 600R Custom HF Transmitter / Receiver set, is in very nice condition.

The 600-R custom has the optional ICAF-500 Audio Notch Filter & NB-500 Noise Blanker included.

The 600-T Transmitter has the power supply built in.

 Both the receiver and transmitter have a few marks from normal use. The front panels are super clean and the cabinets have only a few marks. 

These rigs were part of a large collection and have been stored, unused in a dry clean environment for the last 25 years 

 Since many of there sets were stacked, you can see slight impression marks, on the receiver cabinet top from the feet of the transmitter.

 I tested these radios on the air and on my bench. Both the transmitter and receiver appear to be working okay.

I loaded up the transmitter on 80 Meters and the output was over 150 watts. I also checked the transmit audio though both the USB and LSB filters and the audio was excellent with plenty of drive.

  The "Magic Eye" tuning and modulation monitor works great and looks really cool in the upper left area of the frequency display.

The Receiver also works well with good sensitivity and great receive audio.

Due to their age I did not test them any further than described.

 The Dial Lamps are not Illuminating and will need to be replaced or repaired. The S-Meter Lamp is okay.

 As with most vintage gear, they may benefit with an alignment or tube replacement, and may need some attention.

It does appear they are working as they are.

I am selling these Rare Swan Twins as is, as described for the family of a silent key.

 

Audio Notcher-Peaker –

I.C. Audio Filter The Swan I.C. (Integrated Circuit) Audio Filter (ICAF), or Audio Notcher-Peaker Kit, was available as a standalone accessory for Swan transceivers, selling for ~$59 in December 1972. Installation requires some modification to the transceiver. The unit provides front panel controls to select NO FILTER, NOTCH, or PEAK modes. The NOTCH mode provides a tunable audio notch to suppress heterodynes or unwanted CW signals by up to 50 dB. The PEAK mode provides a tunable and variable narrow audio bandpass to enhance CW reception – the 6- dB down bandpass is variable from ~1.1 kHz to ~200 Hz. This unit is one of the built-in features that is included in the Model 600R Custom receiver twin.

 

Noise Blanker,

NB-500 The NB-500 Noise Blanker Kit was available as a stand-alone add-on accessory for the model 270/B, 350C, 500C, and 500CX 5.5-MHz IF transceivers. Some modification of the transceiver was required. The circuit amplifies and clips impulse noise pulses prior to feeding the signal to the crystal filter, eliminating the pulse stretching effects that occur in a high selectivity filter. Two levels of blanking (medium and maximum) were selectable via a front panel control (as well as Off).

 

You can read more about the Swan 600-R custom & the 600-T, and all Swan gear, at the link below.

http://www.radiomanual.info/schemi/Surplus_Radioamateur/Swan_tube_transceiver_compendium_Rev4_2005.pdf

 

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