Frederick Electronics - Obsolete equipment manuals

I desperately need a manual for the Model 660A Teleprinter to Morse Code Converter

MODEL DESCRIPTION MANUAL INFO
Model 1200 FSK Demodulator download 1.7MB pdf  
Model 1200
FSK Demodulator
Operating Info
link  
Model 1200A FSK Demodulator schematics  
Model 1202 VF Telegraph Receiver ????  
Model 1203 FSK Demodulator download 3.4MB pdf link
Model 1273/S1 FSK Modem download 300 KB pdf  
Model 1280 FSK Modem download 9MB pdf  
Model 1280A FSK Modem download 3MB pdf  
more 1280A pdf  
more 1280A pdf
 
Model 1500A VLF/LF/HF Receiver download 4MB pdf  
Model 1500B VLF/LF/HF Receiver download 4MB pdf  
Model 1500C VLF/LF/HF Receiver download 4MB pdf  
Model 1550A Freq Synthesizer download 5MB pdf  
Model 1632 VFCT Demodulator link  
Model 1632A VFCT Demodulator download 2MB pdf  
       

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